FORM 2
THE PATENTS ACT 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
(See Section 10; rule 13)
TITLE OF THE INVENTION Dual Zipper Lock System
APPLICANTS
VIP INDUSTRIES LTD, an Indian company having its registered office at
78 A, MIDC Estate , Satpur, Nashik 422007,Maharashtra, India
INVENTOR
Mr. Sunil Chimanrao Kolhe
an Indian national
of VIP INDUSTRIES LTD an Indian company
having its registered office at
78 A , MIDC Satpur,
Nashik 422007, Maharashtra, India.
PREAMBLE TO THE DESCRIPTION The following specification particularly describes the invention

FIELD OF THE INVENTION
The present invention relates to lock and more particularly, to a zipper lock having casing with two lock notches each at two lateral sidewalls along with the combination lock or the pin tumbler lock with TSA.
DESCRIPTION OF RELATED ART
A Luggage or any other similar bag or case that is provided with a zipper may be mounted with a zipper lock to lock the two zipper tabs together, prohibiting others to open the zipper.
Conventionally, a combination lock having a set of notched rotating discs is widely used as a zipper lock. A single zipper lock can lock two zipper tabs together for a luggage case with a single compartment closable with a single zip line. For the construction of a luggage case with two compartments closable by two zip lines , two zipper locks of the conventional zipper locks are required to be mounted in opposite direction with respect to each.other , to lock the two zipper tabs of each zip lines together , prohibiting other to open the zipper. The user has to remember two different preset combinations. If the user forgets the correct combination of any one lock, then the user cannot open the respective zipper lock, and must deliver the luggage or bag to the distributor or a locksmith to open the zipper lock. Therefore, the aforesaid conventional zipper lock is not a convenient design, and may bring trouble to the user in opening both the compartments.
OBJECTS OF INVENTION
The main object of the invention is to provide a zipper lock with the assembly of a combination lock and a pin tumbler lock with TSA.

Another object of the invention, is to provide a zipper lock having casing with two lock notches each at two lateral sidewalls.
Yet another object of the invention is to facilitate user to lock and open the two compartments of the luggage case with separate zip chains with a single zipper lock through the combination lock or the pin tumbler lock with TSA.
Another object of invention is to allow the flexibility to open just one compartment at one time by releasing the either of the zip chains from either of the notches with press of one side of the push lever.
SUMMARY OF INVENTION
The present invention has been accomplished under the circumstances in view. It is the primary objective of the present invention to provide a zipper lock, which is the assembly of a combination lock and a pin tumbler lock with TSA and the casing (21) has two lock notches (212) each at two lateral sidewalls allows the user to open the two compartments of the luggage case with separate zip chains with a single zipper lock through the combination lock or the pin tumbler lock with TSA and with selectively, enhancing the convenience of use.
To achieve this objective of the present invention, the zipper lock comprises a lock housing in which a combination lock, a pin tumbler lock for use by TSA, a swivel member and 2 sets of first and second latches engageable with two pull-tabs of a zipper which are insertable into the two lateral sidewalls of the lock housing are mounted. When the combination lock is set in an unlocked manner from a locked manner, the swivel member is forced by a part of the combination lock to move to a position where the swivel member is disengaged from the latches for allowing movement of the latches relative to the two lateral sidewalls of lock housing such that the two pull tabs of the zipper on each of the two lateral sides can be inserted into or pulled away from the lock housing to be engaged with or disengaged from the latches. When the combination lock is set in the locked manner from the unlocked manner, the swivel member is engageable with the latches to prohibit movement of the latches. The pin tumbler lock has an actuating block rotatable with the key to move the swivel

member away from the latches for allowing movement of the latches. Therefore, the zipper lock can unlock either by means of the combination lock or the pin tumbler lock. In case the pin tumbler lock is TSA , then the zipper lock can be unlocked by pin tumbler and can be used by TSA only and not the actual user .
In a preferred embodiment of the present invention, the two lateral sides of the lock housing has a first lock notch and a second lock notch on each lateral side. The first latch has a locking rod movable in and out of the first lock notch. The second latch has a locking rod movable in and out of the second lock notch. Two spring members respectively bias the first latch and the second latch to support the first latch and the second latch in the first lock notch and the second lock notch in normal manner. The swivel member is moveable between a first position where the swivel member is stoppable against the first latch and the second latch to prohibit movement of the first latch and the second latch, and a second position where the swivel member is spaced from the first latch and the second latch for allowing movement of the first latch and the second latch relative to each of the lateral side of lock housing. The combination lock includes a plurality of number wheels and a movable plate coupled to the number wheels. The number wheels each have a retaining notch. The movable plate has a plurality of retaining protrusions and a push portion. The retaining protrusions engage the retaining notches of the number wheels respectively and the push portion is stopped against the swivel member to bias the swivel member from the first position to the second position when the combination lock is unlocked. The retaining protrusions are disengaged from the retaining notches of the number wheels and the push portion is disengaged from the swivel member when the combination lock is locked. The pin tumbler lock is rotatable between a locking position and an unlocking position. The pin tumbler lock has a actuating block stopped against the swivel member when the pin tumbler lock is in the unlocking position. The actuating block is separated from the swivel member when the pin tumbler lock is in the locking position.
Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit, and scope of the invention will become apparent to those skilled in the art from this detailed description.

BRIEF DESCRIPTION OF DRAWINGS
The present invention will become more fully understood from the detailed description
given herein below and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, and wherein :
According to the present invention:
FIG.l shows a perspective view of Dual zipper lock
FIG.2 shows an exploded view of the Dual zipper lock.
FIG.3 shows a bottom view of the Dual zipper lock after removal of the bottom cover
plate, showing that the combination lock is unlocked. FIG.4 shows the combination lock in locked condition. FIG.5 shows the pin tumbler lock in unlocked condition.
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIGS.l and 2, a zipper lock (10) in accordance with a preferred embodiment of the present invention comprises a lock housing (20) (see FIG. 1), a first latch (30) & (301), a first spring member (40) & (401), a second latch (50) & (501), a second spring member (60) & (601), a swivel member (70), a combination lock (80), and a pin tumbler lock (90) for use by TSA.
The lock housing (20) includes a casing (21) and bottom cover plate cover plate (22). The bottom cover plate (22) is covered on the bottom open side of the casing (21), defining with the casing (21) an accommodation chamber (23), The casing (21) has two lock notches (212) at one lateral sidewall and (2121) on other lateral sidewall thereof in communication with the accommodation chamber (23) for receiving the two pull tabs (not shown) of a zipper (not shown), three through holes (not shown) at the other lateral sidewall in communication with the accommodation chamber (23), a pin tumbler lock hole (214) at the top wall in communication with the accommodation chamber (23), two inside flanges, namely, the first inside flange (24) on each lateral side and the second inside flange (25) on each lateral side protruding from the inside

wall and respectively extending around the lock notches (212) & (2121) respectively, two inside openings (242), (252), (2421) and (2521) respectively formed on the inside flanges (24) and (25) on each lateral side, an inside stop plate (26) on each lateral side protruding from the inside wall and facing the opening (252) and (2521) on second inside flange (25) on each lateral side, and an inside pivot rod (27) protruding from the inside wall and disposed adjacent to the stop plate (26) on each lateral side .
The first latch (30) and (301) are mounted in the accommodation chamber (23) of the lock housing (20), having a protrusion (32) and (321) at its one side, a locking rod (34) and (341) extending from one side of the protrusion (32) and (321) and inserted through the opening (242) and (2421) on the first inside flange (24) on each lateral side corresponding to one lock notch (212) and (2121) and stopped against the inner surface of the first inside flange (24) on each lateral side (see FIG.4) and retaining post (36) and (361) protruding from the other side of the protrusion (32) and (321), The locking rod (34) and (341) have a beveled edge (342) and (3421) respectively.
The first spring member (40) and (401) is sleeved onto the retaining post (36) and (361) of the first latch (30) and (301) and stopped between the protrusion (32), (321) of the first latch (30), (301) and the outer surface of the second inside flange (25) on each lateral side.
The second latch (50) and (501) is mounted in the accommodation chamber (23) of the lock housing (20) below the first latch (30) and (301), having a protrusion (52) and (521) perpendicularly extending from its one end, a locking rod (54) and (541) extending from one side of the protrusion (52) and (521) and inserted through the opening (252) and (2521) on the second inside flange (25) on each lateral side corresponding to the other lock notch (212) and (2121) and stopped against the inner surface of the associating second flange (25) on each lateral side (see FIG.4), and a retaining post (56) and (561) protruding from the other side of the protrusion (52) and (521). The locking rod (54) and (541) has a beveled edge (542) and (5421).
The second spring member (40) and (401) is sleeved on to the retaining post (56) and (561) of the second latch (50) and (501) and stopped between the protrusion (52) and (521) of the second latch (50) and (501) and the stop plate (26) on each lateral side.

The swivel member (70) has a pivot portion (71), which defines a pivot hole (712) that is coupled to the inside pivot rod (27) for allowing turning of the swivel member (70) about the inside pivot rod (27) of the lock housing (20), a torsional spring (72), which works in such a manner to allow turning of the swivel member (70) about the inside pivot rod (27) within a limited angle between a first position and a second position, two stop portion (73) opposite to each other extending from the periphery of the pivot portion (71), a wing portion (74), and, convention portion (75) connected between the pivot portion (71) and the wing portion (74), When the swivel member (70) is in the first position as shown in FIG.4, the two stop portions (73), is stoppable against the first latch (30) and (301) and the second latch (50) and (501) to prohibit movement of the first latch (30) and (301) and the second latch (50) and (501) relative to the lock housing (20). When the swivel member (70) is in the second position as shown in FIG.3, the two stop portions (73) on opposite sides are moved away from the first latch (30) and (301) and the second latch (50) and (501), allowing movement of the first latch (30) and (301) and the second latch (50) and (501) relative to the lock housing (20).
The combination lock (80) is mounted in the accommodation chamber (23) of the lock housing (20), including three number wheel assemblies (81), a movable plate (82) and a spring member (86). Each number wheel assembly (81) includes a rotating disc (with inscribed numerals )(83), a retaining wheel (84), and a spring member (85), The rotating discs (83) are respectively disposed corresponding to the through hole of the casing (21) and exposed to the outside of the lock housing (20). The retaining wheels (84) are respectively disposed at the bottom side of the rotating discs (83), each having a retaining notch (842). The spring members (85) are respectively connected between the bottom side of each of the retaining wheels (84) and the bottom cover plate (22) of the lock housing (20). The moveable plate (82) has three receiving opening spaces (822) for receiving the retaining wheels (84) respectively, three retaining protrusions (824) respectively suspending in the receiving open spaces (822) at one side, and a push portion (826). The push portion 826 has a beveled edge (828). Further, the spring member (86) is connected between one end of the movable plate (82) and a part of the casing (21).
The pin tumbler lock (90) is mounted in the pin tumbler lock hole (214) of the casing (21) of the lock housing (20) having a key way (92) in the top side and a bottom

actuation member (94) at the bottom side. The bottom actuating block (94) has a beveled edge (942).
When wanting to open the zipper lock (10). Rotate the rotating discs (81) to show the
set permutation of the combination lock (80), and therefore the combination lock (80)
is unlocked. At this time, as shown in FIG 3, the retaining notches (842) of the
retaining wheels (84) are respectively aimed at the retaining protrusions (824) of the
movable plate (82), and the movable plate (82) is forced by the spring power of the
spring member (86) toward the rotating discs (81) to engage the retaining protrusion
(824) into the retaining notches (842) of the retaining wheels (84), and at the same
time the beveled edge (828) of the push portion (826) of the movable plate (82) is
forced against the connection portion (75) of the swivel member (70) to turn the
swivel member (70) from the first position to the second position. Thus, the two stop
portions (73) of the swivel member (70) is disengaged from the first latches (30) and
(301) and the second latches (50) and (501), making the first latches (30) and (301)
and the second latches (50) and (501) moveable. The user can thus insert the two pull-
tabs of the zipper into the two lock notches (212) and other two pull-tabs of the zipper
into the two lock notches (2121) of the casing (21). When inserting the pull tabs of the
zipper into the two lock notches (212) and (2121) of the casing (21), the pull tabs are
forced against the beveled edge (342) and (3421) of the locking rod (34) and (341) of
first latch (30) and (301) and the beveled edge (542) and (5421) of the locking rod (54)
and (541) of the second latch (50) and (501) respectively, moving the first latches (30)
and (301) and the second latch (50) and (501) in direction toward the pin tumbler lock
(90), and therefore the spring members (40),
(401), (60) and (601) are compressed. After the pull tabs of the zipper have been inserted into position in the respective two lock notches (212) and other pull tabs of the other side zipper have been inserted into position in the respective two lock notches (2121) of the casing (21), the first latches (30), (301) and the second latches (50) and (501) are forced by the spring power of the associating spring members (40), (401), (60) and (601) to move the respective locking rods, (34), (341), (54) and (541) into the eyelets (not shown) of the pull tabs of the zipper. Thereafter, the user can then rotate the rotating discs 81 to move the retaining notches (842) of the retaining wheels (84) away from the retaining protrusions (824) of the movable plate (82). At this time, the retaining wheels (84) force the movable plate (82) outwards to disengage the push portion (826) from the connection portion (75) of the swivel member (70), allowing the swivel member (70) to be returned by the spring power of the torsional spring (72)

from the second position to the former first position to have the two stop portions (73) of the swivel member (70) be stopped against the first latches (30), (301) and the second latches (50) and (501) again (see FIG.4), and therefore the two pull-tabs of the zipper are locked to the lock notches (212) and the other two pull-tabs of the zipper are locked to the lock notches (2121) of the casing (21),
Referring to FIG 5, The pin tumbler lock (90) is provided for use by TSA , TSA can insert the key into the keyway (92) of the pin tumbler lock (90) and rotate the key to move the beveled edge (942) of the bottom actuating block (94) against the wing portion.(74) of the swivel member (70), there by moving the swivel member (70) from the first position to the second position where the two stop portions (73) of the swivel member (70) is disengaged from the first latches (30), (301) and the second latches (50) and (501) to unlock the pull-tabs of the zipper. In other words, the user can unlock the pull-tabs of the zipper by combination lock (80) only and TSA can unlock the pull-tabs of the zipper by the pin tumbler lock (90) only.
The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following invention.
A zipper lock comprising a lock housing having a first lock notch and a second lock notch on the two lateral sides; the first latches are slidably mounted in the lock housing and having locking rods movable in and out of the first lock notch on the two lateral sides; the second latches slidably mounted in the lock housing and having locking rods movable in and out of the second lock notch on the two lateral sides; two spring members respectively on each lateral side biasing the first latch and the second latch to support the first latch and the second latch in the first lock notch and the second lock notch in normal manner on each lateral side;
a swivel member pivotally mounted in the locking housing and moveable between a first position where the swivel member is stoppable against the first latch and the second latch to prohibit movement of the first latch and the second latch on each lateral side, and a second position where the swivel member is spaced from the first latch and the second latch for allowing movement of the first latch and the second latch on each lateral side relative to the lock housing;

a combination lock mounted in the lock housing the combination lock including a plurality of number wheels and a movable plate coupled to the number wheels, the number wheels each having a retaining notch, the movable plate having a plurality of retaining protrusions. and a push portion, the retaining protrusions engaging the retaining notches of the number wheels respectively and the push portion being stopped against the swivel member to bias the swivel member from the first position to the second position when the combination lock is unlocked, the retaining protrusions being disengaged from the retaining notches of the number wheels and the push portion being disengaged from the swivel member when the combination lock is locked; and
a pin tumbler lock mounted in the lock housing and rotatable between a locking position and an unlocking position, the pin tumbler lock comprising an actuating block, the actuating block being stopped against the swivel member when the pin tumbler lock is in the unlocking position, the actuating block being separated from the swivel member when the pin tumbler lock is in the locking position.
The push portion has.a beveled edge for stopping against the swivel member to bias the swivel member from the first position to the second position.
The actuating block has a beveled edge for stopping against the swivel member to bias the swivel member from the first position to the second position.
The swivel member has a pivot portion pivoted to the lock housing, two stop portions extending from the pivot portion for stopping against the first latches and the second latches on each lateral sides, a wing portion for stopping against the actuating block, and a connection portion connected between the pivot portion and the wing portion for stopping against the push portion.
The foregoing description is a specific embodiment of the present invention. It should be appreciated that this embodiment is described for purpose of illustration only, and that numerous alterations and modifications may be practiced by those skilled in the art without departing from the spirit and scope of the invention. It is intended that all such modifications and alterations be included insofar as they come within the scope of the invention as claimed or the equivalents thereof.

We claim
1. A Dual Zipper Lock System (10) comprising
at least one lock housing (20),
a first latch (30) & (301) with a first spring member (40) & (401),
a second latch (50) & (501) with a second spring member (60) & (601),
a swivel member (70),
a combination lock (80) and
a pin tumbler lock (90).
2. The Dual Zipper Lock System as claimed in claim 1 wherein said lock housing (20) is configured with a casing (21) and bottom cover plate cover plate (22) wherein the bottom cover plate (22) is covered on the bottom open side of the casing (21) and an accommodation chamber (23).
3. The Dual Zipper Lock System as claimed in claim 1 wherein said casing (21) is configured with two lock notches (212) at one lateral sidewall and (2121) on other lateral sidewall in communication with the accommodation chamber (23) for receiving the two pull tabs of a zipper.
4. The Dual Zipper Lock System as claimed in claim 1 wherein three through holes are provided at said other lateral sidewall in communication with the accommodation chamber (23) and a pin tumbler lock hole (214) at the top wall in communication with the accommodation chamber (23).
5. The Dual Zipper Lock System as claimed in claim 1 wherein said lateral sides are configured with two inside flanges, the first inside flange (24) on each lateral side

and the second inside flange (25) on each lateral side protruding from the inside wall and respectively extending around the lock notches (212) & (2121) respectively.
6. The Dual Zipper Lock System as claimed in claim 1 wherein atleast two inside openings (242), (252), (2421) (2521) are configured on said inside flanges (24) and (25) on said each lateral side and an inside stop plate (26) on each lateral side protruding from the inside wall and facing the opening (252) and (2521) on second inside flange (25) on each lateral side wherein an inside pivot rod (27) is provided protruding from the inside wall and disposed adjacent to the stop plate (26) on each lateral side.
7. The Dual Zipper Lock System as claimed in claim 1 wherein said first latch (30) and (301) are configured to be mounted in the accommodation chamber (23) of the lock housing (20),. having a protrusion (32) and (321) at its one side and a locking rod (34) and (341) extending from one side of the protrusion (32) and (321) and inserted through the opening (242) and (2421) on the first inside flange (24) on each lateral side corresponding to one lock notch (212) and (2121) and stopped against the inner surface of the first inside flange (24) on each lateral side and retaining post (36) and (361) protruding from the other side of the protrusion (32) and (321) wherein said locking rod (34) and (341) are provided with a beveled edge (342) and (3421) respectively.
8. The Dual Zipper Lock System as claimed in claim 1 wherein said first spring member (40) and (401) is configured to be sleeved onto the retaining post (36) and (361) of the first latch (30) and (301) and stopped between the protrusion (32),

(321) of the first latch (30), (301) and the outer surface of the second inside flange (25) on each lateral side.
9. The Dual Zipper Lock System as claimed in claim 1 wherein said second latch (50) and (501) is configured to mounted in the accommodation chamber (23) of the lock housing (20) below the first latch (30) and (301), having a protrusion (52) and (521) perpendicularly extending from its one end, a locking rod (54) and (541) extending from one side of the protrusion (52) and (521) and inserted through the opening (252) and (2521) on the second inside flange (25) on each lateral side corresponding to the other lock notch (212) and (2121) and stopped against the inner surface of the associating second flange (25) on each lateral side and a retaining post (56) and (561) protruding from the other side of the protrusion (52) and (521) wherein said locking rod (54) and (541) has a beveled edge (542) and (5421).
10. The Dual Zipper Lock System as claimed in claim 1 wherein said second spring member (40) and (401) is sleeved on to the retaining post (56) and (561) of the second latch (50) and (501) and stopped between the protrusion (52) and (521) of the second latch (50) and (501) and the stop plate (26) on each lateral side.
11. The Dual Zipper Lock System as claimed in claim 1 wherein said swivel member (70) has a pivot portion (71), which defines a pivot hole (712) that is coupled to the inside pivot rod (27) for allowing turning of the swivel member (70) about the inside pivot rod (27) of the lock housing (20), a torsional spring (72), which works in such a manner to allow turning of the swivel member (70) about the inside pivot rod (27) within a limited angle between a first position and a second position, two stop portion (73) opposite to each other extending from the periphery of the pivot

portion (71), a wing portion (74), and convention portion (75) connected between the pivot portion (71) and the wing portion (74).
12. The Dual Zipper Lock System as claimed in claim 1 wherein said swivel member (70) is configured to stop the two stop portions (73) against the first latch (30) and (301) and the second latch (50) and (501) when in the first position, to prohibit movement of the first latch (30) and (301) and the second latch (50) and (501) relative to the lock housing (20).
13. The Dual Zipper Lock System as claimed in claim 1 wherein said swivel member (70) is configured to stop the two stop portions (73) on opposite sides are moved away from the first latch (30) and (301) and the second latch (50) and (501) when in the second position, allowing movement of the first latch (30) and (301) and the second latch (50) and (501) relative to the lock housing (20).
14. The Dual Zipper Lock System as claimed in claim 1 wherein said combination lock (80) is configured to be mounted in the accommodation chamber (23) of the lock housing (20), including three number wheel assemblies (81), a movable plate (82) and a spring member (86) wherein each number wheel assembly (81) includes a rotating disc (with inscribed numerals ) (83), a retaining wheel (84), and a spring member (85). Further, the spring member (86) is connected between one end of the movable plate (82) and a part of the casing (21).
15. The Dual Zipper Lock System as claimed in claim 1 wherein said rotating discs (83) are configured to be disposed corresponding to the through hole of the casing (21) and exposed to the outside of the lock housing (20) and said retaining wheels

(84) are respectively disposed at the bottom side of the rotating discs (83), each
having a retaining notch (842).
16. The Dual Zipper Lock System as claimed in claim 1 wherein said spring members
(85) are configured to be connected between the bottom side of each of the
retaining wheels (84) and the bottom cover plate (22) of the lock housing (20).
17. The Dual Zipper Lock System as claimed in claim 1 wherein said moveable plate (82) are configured with three receiving opening spaces (822) for receiving the retaining wheels (84) respectively, three retaining protrusions (824) respectively suspending in the receiving open spaces (822) at one side, and a push portion (826).
18. The Dual Zipper Lock System as claimed in claim 1 wherein said push portion (826) has a beveled edge (828).
19. The Dual Zipper Lock System as claimed in claim 1 wherein said pin tumbler lock (90) is mounted in the pin tumbler lock hole (214) of the casing (21) of the lock housing (20) having a keyway (92) in the top side and a bottom actuation member (94) at the bottom side. The bottom actuating block (94) has a beveled edge (942).
20. A zipper lock comprising
a. lock housing (20) having a first lock notch (212) and a second lock notch (2121) on the two lateral sides; the first latch (30), (301) are slidably mounted in the lock housing (20) and having locking rods (34), (54) movable in and out of the first lock notch (212) on the two lateral sides; the second latches (50) , (501) slidably mounted in the lock housing (20) and having locking rods (34) , (54)

movable in and out of the second lock notch (2121) on the two lateral sides; two spring members (40), (60), (401), (601) respectively on each lateral side biasing the first latch (30), (301) and the second latch (50), (501) to support the first latch (30), (301) and the second latch (50) , (501) in the first lock notch (212) and the second lock notch (2121) in normal manner on each lateral side;
a swivel member (70) pivotally mounted in the locking housing (20) and moveable between a first position where the swivel member (70) is stoppable against the first latch (30) , (301) and the second latch (50) , (501) to prohibit movement of the first latch (30) , (301) and the second latch (50) , (501) on each lateral side, and a second position where the swivel member (70) is spaced from the first latch (30), (301) and the second latch (50), (501) for allowing movement of the first latch (30) , (301) and the second latch (50) , (501) on each lateral side relative to the lock housing (20);
a combination lock (80) mounted in the lock housing (20) the combination lock (80) including a plurality of number wheels (83) and a movable plate (82) coupled to the number wheels (83), the number wheels (83) each having a retaining notch (842), the movable plate (82) having a plurality of retaining protrusions (824) and a push portion (826), the retaining protrusions (824) engaging the retaining notches (842) of the number wheels (83) respectively and the push portion (826) being stopped against the swivel member (70) to bias the swivel member (70) from the first position to the second position when the combination lock (80) is unlocked, the retaining protrusions (824) being disengaged from the retaining notches (842) of the number wheels (83) and the push portion (826) being disengaged from the swivel member (70) when the combination lock (80) is locked; and
a pin tumbler lock (19) mounted in the lock housing (214), (20) and rotatable between a locking position and an unlocking position, the pin tumbler lock (19) comprising an actuating block (942), the actuating block (942) being stopped

against the swivel member (70) when the pin tumbler lock (19) is in the unlocking position, the actuating block (942) being separated from the swivel member (70) when the pin tumbler lock (19) is in the locking position.
21. The Dual Zipper Lock System as claimed in claim 20 wherein said push portion (826) has a beveled edge (828) for stopping against the swivel member (70) to bias the swivel member (70) from the first position to the second position.
22. The Dual Zipper Lock System as claimed in claim 20 wherein said actuating block (942) has a beveled edge (828) for stopping against the swivel member (70) to bias the swivel member (70) from the first position to the second position.
23.The Dual Zipper Lock System as claimed in claim 20 wherein said swivel member (70) has a pivot portion (71) pivoted to the lock housing (20) , two stop portions (73) extending from the pivot portion (71) for stopping against the first latch (30), (301) and the second latches (50), (501) on each lateral sides, a wing portion (74) for stopping against the actuating block (942), and a connection portion connected between the pivot portion (71) and the wing portion (74) for stopping against the push portion (826).
24. Method of locking and unlocking the Dual Zipper Lock System comprising the
steps of:
a. Rotating the rotating discs (81) to show the set permutation of the combination lock (80) such that the retaining notches (842) of the retaining wheels (84) are respectively aimed at the retaining protrusions (824) of the movable plate (82), and the movable plate (82) is forced by the spring power of the spring member (86) toward the rotating discs (81) to engage the retaining protrusion (824) into

the retaining notches (842) of the retaining wheels (84), and at the same time the beveled edge (828) of the push portion (826) of the movable plate (82) is forced against the connection portion (75) of the swivel member (70) to turn the swivel member (70) from the first position to the second position;
b. Further the two stop portions (73) of the swivel member (70) is disengaged
from the first latches (30) and (301) and the second latches (50) and (501),
making the first latches (30) and (301) and the second latches (50) and (501)
moveableto unlock the combination lock (80);
c. Inserting the two pull-tabs of the zipper into the two lock notches (212) and
other two pull-tabs of the zipper into the two lock notches (2121) of the casing
(21);.
d. Inserting the pull tabs of the zipper into the two lock notches (212) and (2121)
of the casing (21), the pull tabs are forced against the beveled edge (342) and
(3421) of the locking rod (34) and (341) of first latch (30) and (301). and the
beveled edge (542) and (5421) of the locking rod (54) and (541) of the second
latch (50) and (501) respectively, moving the first latches (30) and (301) and
the second latch (50) and (501) in direction toward the pin tumbler lock (90),
and therefore the spring members (40), (401), (60) and (601) are compressed;
e. Inserting the pull tabs of the zipper have been into position in the respective two
lock notches (212) and other pull tabs of the other side zipper have been
inserted into position in the respective two lock notches (2121) of the casing
(21), the first latches (30), (301) and the second latches (50) and (501) are
forced by the spring power of the associating spring members (40), (401), (60)
and (601) to move the respective locking rods, (34), (341), (54) and (541) into
the eyelets (not shown) of the pull tabs of the zipper;
f. Rotating the rotating discs 81 to move the retaining notches (842) of the
retaining wheels (84) away from the retaining protrusions (824) of the movable

plate (82) to force the movable plate (82) outwards to disengage the push portion (826) from the connection portion (75) of the swivel member (70), allowing the swivel member (70) to be returned by the spring power of the torsional spring (72) from the second position to the former first position to have the two stop portions (73) of the swivel member (70) be stopped against the first latches (30), (301) and the second latches (50) and (501) again, and therefore the two pull-tabs of the zipper are locked to the lock notches (212) and the other two pull-tabs of the zipper are locked to the lock notches (2121) of the casing (21).