Claims:
1. A shaving razor assembly (1) comprising of :
a razor handle (2) and a disposable shaving cartridge assembly (3) engaged with razor handle (2) having hand holding portion (2A) and cartridge holding portion (2B), the disposable cartridge assembly (3) and system razor handle 2 are interconnected such that cartridge assembly (3) will swivel/rotate on the handle (2) with cam members (21,22), spring member (41,42) biasing neutral position;
wherein the disposable shaving cartridge assembly comprising substantially rigid seat part (4), a cap part (5), and blade part (6); and
wherein the said disposable shaving cartridge assembly includes elongated guard portion (47) with at least 16 – 24, clear - open/through cross (transverse) slots (47A) and raised ribs 47C perpendicular to and in front of said blade (6) cutting edge to protect the skin being shaved from nicks/cuts, easily removal of debris in addition to preparing beard for efficient, close shave during shaving operation, wherein the said clear - open/through slots 47A with raised ribs 47C are interconnected with longitudinal rib 47B to give enough strength to guard portion.
2. The shaving razor assembly as claimed in claim 1, wherein the guard portion (47) having a plurality of spaced apart defining a plurality of open slots having a convex lower surface extending between the plurality of projections, the projections having a convex upper surface extending generally transverse to the blades from a front face of the guard (47) toward a rearward edge of the guard.
3. The shaving razor assembly as claimed in claim 2, wherein the upper convex surface and the lower convex surface form a continuous undulating skin contacting surface that extends along the length of the guard (47) parallel to the blade (6).

4. The shaving razor assembly as claimed in claim 1, wherein a seat part (4), a blade (6) and a cap part (5), the seat part (4) provided with two parallel reversely raised projections called spring member (41,42).
5. The shaving razor assembly as claimed in claim 1, wherein a seat part (4) has further two clamp slots (52,53) on either side of spring member (41,42).
6. The shaving razor assembly as claimed in claim 1, wherein substantially a cap part (5) has longitudinal grooves / clear slots (5A) parallel to blade 6 cutting edge to reduce friction behind blade 6 cutting edge configured for closer shaving.
7. The shaving razor assembly as claimed in claim 1, wherein seat part 4 further integrally molded with two projections (48,49) having tapered surfaces (50,51) to easily locate and to inserting shaving handle (2) into cartridge assembly (3).
8. The shaving razor assembly as claimed in claim 1, wherein comprising seat part 4 has guide member (43,44) creates axis of rotation, therefore, to facilitate the shaving cartridge (3) to swivel on the shaving handle (2) during shave.
9. The shaving razor assembly as claimed in claim 1, wherein blade 6 is placed between parallel planes of seat part (4) and cap part (5) and riveted firmly and ensuring guide member (43,44) clamp slots (52,53) are made arranged away from blade 6.
10. The shaving razor assembly as claimed in any one of claim 1, wherein guide member (43,44) clamp slots (52, 53) are incorporated in the middle of shaving cartridge which facilitates easy loading on handle and easy disposal of used cartridge.
11. The shaving razor assembly as claimed in any one of claim 1, wherein ridge member (25) and rib member (54) are incorporated correspondingly in the one of handle clamp member

(23/24) and adjacent to guide member (43/44) of shaving cartridgerespectively thereby preventing reverse loading of cartridge.
12. The shaving razor assembly as claimed in claim 1, wherein shaving razor handle 2 mainly comprise two areas viz. handle holding potion 2A and shaving cartridge holding portion 2B, the cartridge holding portion 2B possessing cup shaped clamp members (23,24) on both ends and two cam members (21,22) on either side of middle slot.
13. A shaving razor assembly (1) comprising of :
a razor handle (2) including an unique fitting with a disposable shaving cartridge assembly (3) engaged with razor handle (2) having hand holding portion (2A) and cartridge holding portion (2B), the disposable cartridge assembly (3) and system razor handle 2 are interconnected such that cartridge assembly (3) will swivel/rotate on the handle (2) with cam members (21,22), spring member (41,42) biasing neutral position;
wherein the disposable shaving cartridge assembly comprising substantially rigid seat part (4), a cap part (5), and blade part (6);
wherein the said system razor handle (2) comprise cup shaped clamp member (23, 24) and ridge (25) disposed between tapered surface (50,51) slides into clamp slot (52,53) while pushing the handle against walls of tapered surface (50, 51) for loading the disposable shaving cartridge; and
under condition that the shaving cartridge is loaded onto handle (2), it facilitates swivel movement of the shaving cartridge assembly (3) on the razor handle (2) thereby enabling the shaving cartridge to more closely follow the surface of the skin being shaved.
14. The shaving razor assembly as claimed in claim 13, wherein the said razor handle (2) comprise handle holding portion (2A), cartridge

holding portion 2B, cam member (21,22) and clamp member (23, 24) and ridge (25) are injection molded in a single piece with high impact/medium impact polystyrene or acrylonitrile butadiene styrene.
15. The shaving razor assembly as claimed in claim 13, wherein the said Cam members (21, 22) are made with enough strong structure subjected to constant force exerted by spring member (41, 42) for repeated usage of system razor handle (2).
16. The shaving razor assembly as claimed in claim 13, wherein the said ridge member (25) is incorporated on cup shaped clamp members (23,24) to prevent reverse loading of cartridge.
17. The shaving razor assembly as claimed in claim 13, wherein the said cartridge when mounted on the handle, both cam member (21, 22) of shaving cartridge (3) engages the spring member (41, 42) in the seat part (4) in response to biasing force generated by spring member (41, 42) therefore the shaving cartridge remain kept in predetermined position in relation with razor handle longitudinal axis.
18. The shaving razor assembly as claimed in claim 13, wherein the said handle cartridge holding portion (2B) is provided with clamp member (23, 24) located on either side of handle extending outwardly and they collapse on compression of holding portion (2B) of handle (2).
19. The shaving razor assembly as claimed in claim 13, wherein the said shaving cartridge assembly (3) is attached to the razor handle (2) by inserting clamp members simultaneously into the clamp slots (52, 53) of the seat part 4, while inserting clamp members into clamp slots the ridge (25) overlap on rib (54) and guide in order to load cartridge in right direction.
20. The shaving razor assembly as claimed in claim 13, wherein the said razor handle (2) with shaving external force on the blade the shaving cartridge assembly (3) comprise both spring member (41, 42) exert pressure on both cam member of (21, 22) of razor handle (2) to

force the shaving cartridge to its predetermined swivel position in relation to handle (2) longitudinal axis; and wherein the handle longitudinal axis is nearly 62 degrees + 10 degrees, as neutral position / angle.
21. The shaving razor assembly as claimed in claim 13, wherein the said shaving cartridge is configured to rotate clockwise direction or anti-clockwise direction or remain in neutral position; and wherein the maximum angle of rotation of shaving cartridge towards clockwise direction, measured between blade sitting plane to handle longitudinal axis is nearly 72 degrees + 7 degrees and anticlockwise rotation is nearly 38 degrees + 7 degrees.
, Description:FIELD OF THE INVENTION.
The present invention relates to wet system shaving razors and cartridges and particularly completes system razor assembly. More particularly the present invention relates to shaving cartridges that provide cross clear - through/open slots and raised ribs in front of cutting edge to prepare beard for smooth and close shaving and easy removal of long grown hair and for controlled swivel motion.
BACKGROUND OF THE INVENTION
In India majority of low income consumers use one piece or three piece standard double edge safety razors for shaving. These razors manufactured to load one standard disposable double edged blade. The blade is replaced by new one when the blade cutting edge becomes blunt. The conventional double edge safety razor is designed in such manner that the blade held rigidly between cap member and guard member at fixed position with respect to handle that is the orientation of cutting edge of blade with respect to handle and skin being shaved is fixed. Orientation of blade cutting edge with respect to skin area being shaved is also vital. The gap between blade cutting edge and guard member is also found more. The conventional safety razors with above features may be available at affordable price but user tends to experience discomfort, cuts and sometimes bleeding too due to above said reasons. Continuing efforts are being made to overcome above said problems and to improve shaving performance and thereafter some of designs are commercialized e.g. fixed cartridge twin blade shaving systems, swivel cartridge twin blade /triple blade/five blade shaving systems etc. particularly swivel cartridge shaving systems razors wherein cartridge swivels on contour of a skin being shaved giving comfortable shaves, but they are expensive due to complexity of construction e.g. pusher, spring, pins, assembly activity etc.

In the prior art, an US specification US8413334 discloses shaving cartridge with a housing, at least one blade mounted to the housing, and a guard having a plurality of spaced apart projections with an upper surface. The projections define a plurality of open slots extending transverse to the blade. The open slots have a lower surface extending between the plurality of projections. The open slots have a slot depth between the lower surface and the upper surface of about 1.0 mm to about 3.0 mm.
In the prior art, an US specification US3935639 discloses a safety razor comprises an elongated handle that has a pair of actuate, laterally spaced guide rails; a support member that has a pair of elongated guide means for sliding cooperation with the respective guide rails; a spring that acts between the handle and the support member to bias the support member towards a medial position of pivotal adjustment relative to the handle; and a shaving unit for detachable inter-engagement with the support member to position its cutting edge parallel to the pivotal axis.
SUMMARY OF THE INVENTION
The aim of present invention is to make plastic molded razor handle 2 of single part comprising cam member 21, 22, ridge member 25, clamp member 23, 24 and on which at least single blade 6 disposable cartridge 3 swivels on the skin being shaved. Accordingly disposable blade cartridge 3 comprising cap part 5 blade member 6 and seat part 4 and adapted to be fitted to a molded razor handle 2. The seat part 4 has clamp slot 52, 53 for holding razor handle clamp member 23,24, spring member 41,42 for exerting a force on razor handle cam member 21,22, and ridge member 25 to prevent reverse loading of cartridge.
The object of the invention feature on pushing of cartridge holding portion of handle between tapered surface of projection 48,49 clamp member 23,24 on handle brought closer together and adapted clamp member23,24 get locked with clamp slot 52,53 of seat for holding the disposable cartridge 3.

Another object of the invention feature on compress of cartridge holding portion 2B clamp member23, 24 brought closer together and take out handle 2 from shaving cartridge 3 to replace with new one.
Still another object of the invention feature there is a controlled swivel movement of shaving cartridge 3 over system shaving handle 2 and hence the seat is provided with two parallel reversely raised projections called spring member 41, 42, spring member 41,42 is in engagement with cam member 21, 22 provided on either side of the cartridge holding portion 2B of handle 2.
Yet another object of the invention feature there is an elaborated guard portion on seat part 4 with multiple clear- open/through elongated slots 47A and raised ribs 47C on guard portion 47 in front of cutting edge of blade 6 to prepare the skin for close, comfortable and safety shaving with easy removal of debris, also behind blade cutting edge there are grooves on the cap part 5 to reduce the irritation during shaving.
Another object of invention feature there is a stopper 54 extended from one of guide members 43/44 of seat part 4 in order to order to eliminate reverse loading of handle which is provided with ridge 25.
According to the present invention there is provided a complete system razor assembly 1 includes system razor handle 2 and a disposable shaving cartridge assembly 3 engaged with razor handle 2 having hand holding portion 2A and cartridge holding portion 2B, the disposable cartridge assembly 3 and system razor handle 2 are interconnected such that cartridge assembly 3 will swivel/rotate on the handle 2 with cam members 21, 22/spring member 41/42 biasing neutral position, the handle holding portion 2A is provided with serrations for gripping purpose, and some land may left for incorporating logo, if necessary, the cartridge holding portion 2B is mainly meant for holding and controlled swiveling of cartridge 3 to more closely follow the contours of surface being shaved, the disposable shaving cartridge assembly comprising

substantially rigid seat part 4, a cap part 5, and blade part 6, blade is held rigidly between seat part 4 and cap part 5 by means of riveting process, the seat part 4 and cap part are of two individual moldings.
A seat part 4, a blade 6 and a cap part 5, the seat part 4 provided with two parallel reversely raised projections called spring member 41, 42.
A seat part 4 has further two clamp slots 52, 53 on either side of spring member 41, 42.
A seat part 4 has through elongated slots 47A and raised ribs 47 Cnormal to blade cutting edge on guard portion 47 which is very similar to existing body razors but elongated through/open slots allows blade cutting edge reaches to skin very closely for close and easily removal of extra grown hair debris.
Substantially a cap part 5 has longitudinal grooves 5A parallel to blade 6 cutting edge to reduce friction behind blade 6 cutting edge.
The said disposable shaving cartridge includes elongated guard portion 47 with multiple through elongated slots 47A and raised ribs 47Cnormal to blade 6 cutting edge to prepare beard for efficient, close and easily removable shaved debris during shaving operation.
A seat part 4 further integrally molded with two projections 48, 49 having tapered surfaces 50, 51 to easily locate and to inserting shaving handle 2 into cartridge assembly 3.
A seat part 4 has guide member 43, 44 creates axis of rotation, therefore, to facilitate the shaving cartridge 3 to swivel on the shaving handle 2 during shave.
Blade 6 is placed between parallel planes of seat part 4 and cap part 5 and riveted firmly and ensuring guide member 43,44 clamp slots 52, 53 are made arranged away from blade 6.
Guide member 43,44 clamp slots 52, 53 are incorporated in the middle of shaving cartridge which facilitates easy loading on handle and easy disposal of used cartridge.
Shaving razor handle 2 mainly comprise two areas viz. handle holding potion 2A and shaving cartridge holding portion 2B, the cartridge holding portion 2B possessing cup shaped clamp members 23, 24 on both ends and two cam members 21, 22 on either side of middle slot and ridge member 25.
Clamp members 23,24 enters into clamp slots 52,53 of seat part 4 on pushing of handle on tapered surface 50, 51 of seat part 4 to engage the cartridge upon releasing of clamp members 23, 24 by the operator, the clamps remain locked in the inwardly-flexed position when it is desired to remove a used blade cartridge, the operator need to compress the cartridge holding portion 2B for removing clamp members 23, 24 from clamp slots 52, 53 and hence removing cartridge.
On loading the cartridge on handle cam member 21, 22 engage with both the spring members 41, 42. The cam member 21, 22 and spring member 41, 42 cooperatively urge the cartridge to be in a predetermined /neutral position, relative to handle longitudinal axis.
During shaving when shaving cartridge tend to rotate towards clock wise direction, one of spring member 41, 42 get disengaged with its relative cam member 21, 22 , the other spring member continue in exerting force on its relative cam member to resiliently support the shaving cartridge.
In handle holding portion 2A, cartridge holding portion 2B,cam member 21, 22 and clamp members 23, 24 are all preferably injection molded integrally in a single part.
BRIEF DESCREPTION OF THE DRAWINGS
Fig.1 is an isometric view of a razor assembly.
Fig.2 is an exploded isometric view of a razor assembly.
Fig .3 is a plan view of disposable cartridge according to the invention.
Fig.4 is an isometric view of a disposable cartridge showing guide details and spring members according to invention.
Fig.5 is an isometric view of disposable cartridge and handle according to the invention.
Fig.6 is an isometric view of handle showing the details of cam members.
Fig .7 is pictorial view of disposable cartridge showing its neutral position with respect to handle.
Fig .8 is pictorial view of disposable cartridge showing its extreme position with respect to handle when it rotates through clockwise direction during shaving.
Fig .9 is pictorial view of disposable cartridge showing its extreme position with respect to handle when it rotates through anti-clockwise direction during shaving.
DETAILED DESCRIPTION OF THE INVENTION
Till today, the conventional disposable double edge style blade forms a major share of men’s shaving systems market due to its low cost factor. During the recent fast urbanization in India, consumers are expecting low cost system razors provided with most recent features e.g. comfort shave, controlled swivel movement of cartridges, easy loading and unloading of cartridge into handle etc.
Unlike prior art pivoting shaving implements available in market wherein plunger operated with complex construction of razor handle moves to and fro when cam member of cartridge exerts force upon it during shaving.
The proposed invention incorporated cam members 21, 22 in the molded handle itself as integrated member to exert force upon the
integrally molded spring members 41, 42 of seat 4 thereby avoiding complex construction of plunger mechanism and decreasing cost of razor.
Referring to Fig. 1, it will be seen that illustrative complete razor assembly 1 includes system razor handle 2 and a disposable shaving cartridge assembly 3 engaged with razor handle 2 having hand holding portion 2A and cartridge holding portion 2B. The disposable cartridge assembly 3 and system razor handle 2 are interconnected in such manner that cartridge assembly 3 will swivel/rotate on the handle 2 with cam members 21, 22/spring member 41/42 biasing neutral position. The handle holding portion 2A is provided with serrations for gripping purpose and some land may be left for incorporating
logo, if necessary, the cartridge holding portion 2B is mainly meant for holding and controlled swiveling of cartridge 3 to more closely follow the contours of surface being shaved. The disposable shaving cartridge assembly comprising substantially rigid seat part 4, a cap part 5, and blade part 6, blade is held rigidly between seat part 4 and cap part 5 by means of riveting process. The seat part 4 and cap part are of two individual moldings.
Referring to fig.2 it will be seen that illustrative system razor handle 2 and disposable razor blade cartridge assembly 3 includes a seat part 4, cap part 5 and blade part 6. The cap part 5 has longitudinal grooves 5A pips 51 which are extended through openings 61 of blade 6 and through holes 46 of seat 4 and riveted to together firmly.
Seat part 4 provided with integrally molded spring members 41, 42 generally transverse to an axis parallel to the blade edge with oppositely inclined surface. The object of spring member 41, 42 is to resiliently support disposable shaving cartridge assembly 3 during shaving for

comfortable shaving. In neutral position both spring members 41, 42 are in engagement with both cam member of 21, 22 of handle 2.
During shaving, while clockwise swiveling of shaving cartridge assembly 3 over the skin one of spring member 41, 42 in engagement with corresponding cam member to resiliently support the shaving cartridge assembly 3, and urge the other spring member disengaged from its respective cam member 21, 22.
Similarly during anti-clockwise movement of shaving cartridge one of spring member 41, 42 in engagement with corresponding cam member to resiliently support the shaving cartridge assembly 3, and urge the other spring member disengaged with its respective cam member 21, 22.
While neutral position of shaving cartridge assembly 3 both spring member 41, 42 exert pressure on both cam member of 21, 22 of razor handle 2 to force the shaving cartridge to its predetermined swivel position in relation with handle 2.
The cam members 21, 22 are molded integrally in front of the cartridge holding portion 2B of the system razor handle 2. The cam members 21, 22 are made with enough strong structure for repeated usage of system razor handle 2.The cam member 21, 22 are made in such a way that loading of cartridge and removing of cartridge from the handle is made easy.
Referring to fig.3 a plan view and front view of disposable shaving cartridge assembly 3 according to the invention is shown. In accordance with the present invention there is provided a safety razor cartridge assembly comprising a seat part 4 a cap part 5 and a blade 6 with sharpened edges placed between seat part 4 and cap part 5 and then secured together firmly by means of riveting process. In general, single blade shaver i.e. conventional double edge style razor blade edge has more positive protrusion to obtain closer shave, but this leads to nicks

and cuts on skin and to our knowledge, this is due to less area of guard portion in front of blade cutting edge and therefore the proposed invention is provided with elongated guard portion 47 of 3mm to 7mm width (o g b) and to height of (o g h) 2mm to 5mm to well prepare beard and to protect the skin from nicks/cuts. The guard portion 47 width (o g b) is measured along the blade sitting surface from cutting edge of blade to end of guard. The guard portion height is (o g h) is 2mm to 5mm measured parallel to blade sitting surface from blade cutting edge to end of guard portion top surface. The guard portion may have 16-24 cross clear slots 47A and raised ribs 47C in front of the blade cutting edge to prepare beard for smooth, close shaving and for easily cleaning of shaved hair. These clear slots 47A ended at blade sitting portion and other side these cross slots and raised ribs slots are interconnected with longitudinal rib 47B to give enough strength to guard portion. The through clear slots 47A length is 2.5mm to 5mm. These through clear slots 47A length (OSB) is measured along the blade sitting surface from cutting edge of blade to longitudinal rib 47B. In another aspect, the invention features, in general, a shaving cartridge having housing, at least one blade mounted to the housing, and a guard. The guard 47 has a plurality of spaced apart convex faces defining a plurality of longitudinal and lateral clear open slots. The said open slots have a convex lower surface extending between the plurality of projections for smooth glide of the blade over the skin. The projections have a convex upper surface extending generally transverse to the blades from a front face of the guard toward a rearward edge of the guard. The upper surface and the lower surface form a continuous undulating skin contacting surface that extends along the length of the guard parallel to the blades.
The clear - open slots 47A and raised ribs 47C of the guard 47 may manage the skin and hair during a shaving stroke to minimize nicks and cuts while improving cutting efficiency (e.g., less missed hairs during a shaving stroke). The clear - open/through slots (47A) measuring 2.5mm

to 5mm may allow for the unobstructed passage of hair to the blade for close shave. The guard 47 may have an upper surface and a lower surface. The lower surface may be convex and extend between adjacent slots. The upper surface may be convex such that the lower surface and the upper surface forms a continuous undulating skin contacting surface extending along the length of the guard 47 parallel to the blades. The convex lower surface always be in continuous contact with the skin during a shaving stroke. The raised ribs 47C The projections may have a generally circular cross section (e.g., oval).
The disposable shaving cartridge assembly 3 comprising seat part 4, cap part 5 and blade 6 disposed between seat part 4 and cap part 5 to secure firmly together by means of riveting. The cap member behind cutting edge of blade provided with 4 to 6 longitudinal grooves 5A placed parallel to blade cutting edge to reduce friction between skin being shaved and cap part surface to improve shaving comfort. The clear slots ( holes) 47A have been provided for closer shaving and easy removal of long grown hair.
Referring to fig. 4, there is shown a perspective view of disposable shaving cartridge assembly 3 according to the invention. According to this invention, shaving cartridge assembly may be removable and pivotally mounted to a razor handle as when required hence it is desirable to establish the guiding and holding system to create interrelationship between disposable shaving cartridge 3 and system shaving handle 2, hence, opposite face of blade sitting surface of the seat part 4 is provided with two projections 48, 49 having tapered surface 50, 51 in addition to shaft shaped guide members 43, 44, above which there are arc shaped clamp slot 52,53 as a part of holding system. The stopper 54 is extruded from one of guide members 43,44 to prevent reverse loading of cartridge.
The minimum opening distance between tapered surfaces 50, 51 at apexes should be more than the maximum distance of handle clamps

23, 24 hence the clamp 23, 24 may be disposed between tapered surface 50,51 then slides into clamp slot 52,53 while pushing the handle against walls of tapered surface 50, 51 for loading the disposable shaving cartridge. Once the shaving cartridge loaded into handle, it facilitates swivel movement of the shaving cartridge assembly 3 on the razor handle 2. It is known that shaving efficiency of shaving cartridge may be improved if the shaving cartridge is adapted to swivel on the handle, as the cartridge to more closely follow the surface of the skin being shaved.
Once the shaving cartridge mounted upon the handle, the cam members 21, 22 receives bias force exerting from spring member 41, 42 on the handle to establish predetermined position between cartridges and handle in relation with handle longitudinal axis as shown in fig 7.
Referring to fig. 5, there is shown a perspective view of disposable shaving cartridge assembly 3 and system razor handle 2 according to the invention.
In general, any swivel razor handle comprising several parts such as plunger, spring, clamps, one or more handle parts etc and manufacturing technologies viz press tooling, injection molding, assembly of parts etc involves in manufacturing of the razor handle.
In an embodiment, fitting of the handle 2 with the cartridge 3 is unique. According to the new invention, eliminating all these complex process, the system razor handle 2 comprising of mainly handle holding portion 2A, and cartridge holding portion 2B, the handle holding portion may be provided with serration for gripping purpose, the handle 2 cartridge holding portion 2B comprising of cup shaped clamp member 23, 24 and cam member 21, 22, and ridge 25 all above said details includes cartridges holding portion 2B, cartridge holding portion 2B, clamp member 23, 24, ridge member 25 and cam members 21, 22 are of integrally injection molded in single piece with high/med. impact polystyrene, or, acrylonitrile butadiene styrene.

Compress the handle at cartridge holding portion to remove clamp member 23, 24 from clamp slots 52, 53 to detach shaving cartridge 3 from system razor handle 2.
Referring to fig.6, there is shown a perspective view of system razor handle 2 according to the invention. The system razor handle 2 comprise handle holding portion 2A, cartridge holding portion 2B, cam member 21,22 and clamp member 23, 24 and ridge 25 and injection molded in a single piece with high impact/medium impact polystyrene or acrylonitrile butadiene styrene. Cam members 21, 22 are made with enough strong structure subjected to constant force exerted by spring member 41, 42 for repeated usage of system razor handle 2.The ridge member 25 incorporated on cup shaped clamp members 23,24 to prevent reverse loading of cartridge. During neutral position of cartridge as shown in fig 7 mounted on the handle, both cam member 21, 22 of handle 2 engages the spring member 41, 42 in the seat part 4 in response to biasing force generated by spring member 41, 42 therefore the shaving cartridge remain kept in predetermined position in relation with razor handle longitudinal axis.
The handle cartridge holding portion 2B is provided with clamp member 23, 24 located on either side of handle extending outwardly and they collapse on compression of cartridge holding portion 2B of handle 2.
The razor cartridge assembly 3 is attached to the razor handle 2 by inserting clamp members simultaneously into the clamp slots 52, 53 of the seat part 4. While inserting clamp members into clamp slots the ridge 25 overlap on rib 54 and guide us to load cartridge in right direction.
Referring to fig.7, there is shown a view of system razor handle 2 with external force on the blade the shaving cartridge assembly 3 comprise both spring member 41, 42 exert pressure on both cam member of 21, 22 of razor handle 2 to force the shaving cartridge to its predetermined

swivel position in relation to handle 2 longitudinal axis. The angle formed between blade sitting plane to handle longitudinal axis is nearly 62 degrees + 10 degrees, here we called neutral angle.
Referring to fig.8, and fig.9, there is shown a view of system razor handle 2 with shaving cartridge 3 according to the invention. As the shaving cartridge is adapted to swivel on the razor handle during shaving process, permitting the shaving cartridge assembly to more closely follow the contours of skin being shaved, the shaving cartridge tend to rotate clockwise direction or anti-clockwise direction or remain neutral position, the maximum angle of rotation of shaving cartridge towards clockwise direction, measured between blade sitting plane to handle longitudinal axis is nearly 72 degrees + 7 degrees and anticlockwise rotation is nearly 38 degrees + 7 degrees.
Although the foregoing description of the present invention has been shown and described with reference to particular embodiments and applications thereof, it has been presented for purposes of illustration by way of examples and description and is not intended to be exhaustive or to limit the invention to the particular embodiments and applications disclosed. The particular embodiments and applications were chosen and described to provide the best illustration of the principles of the invention and its practical application thereby to enable one of ordinary skill in the art to utilize the invention in various embodiments and with various modifications as are suited to the particular use contemplated. All such changes, modifications, variations, and alterations should therefore be seen as being within the scope of the present invention as determined by the appended claims when interpreted in accordance with the breadth to which they are fairly, legally, and equitably entitled.