FORM 2
THE PATENT ACT, 1970 (39 OF 1970)
AND
THE PATENT RULES, 2003
COMPLETE SPECIFICATION (Section 10; rule 13)
“POP UP INDICATOR FOR SWITCHES”

APPLICANT NATIONALITY ADDRESS
NOVATEUR
ELECTRICAL &
DIGITAL SYSTEMS
PRIVATE LIMITED INDIAN 61/62, Kalpataru Square, 6th Floor Off Andheri- Kurla Road, Andheri (East) Mumbai Mumbai City MH 400059 IN

TITLE:
POP UP INDICATOR FOR SWITCHES
FIELD OF THE INVENTION:
The present invention relates to a switching device possessing an isolation capability which with it’s configuration, is enabled to switch the load from one source to another source through manual operation or through automatic operation. In a general setup, two switches are either arranged in a tandem or in a side by side manner to switch the source of supply to load from one switch to another. Usually this type of isolation switch has a contact visibility feature for the end user to see the actual contact positions of the switch. In a side by side arrangement, the user can view which switch is in contact. However, in case of tandem construction of two switches which are placed one above the other, the contact visibility of the switch which is placed underneath or below is blocked, which provides dilemma for the user to view the working (Active) switch. Present invention relates to solving this problem by providing true contact indication to each pole of switches to ensure in any construction individual or tandem or side by side the true contact position of every pole is indicated to use via a pop up indicator.
BACKGROUND & PRIOR ART:
The present invention mainly relates to switching devices with rotary or linear motion to switch the circuit ON and OFF with isolation or without isolation function. Usually these types of switches make, break and carry current with limited or infinite duty. The contact system of these devices are more or less constructed in such a way to have single break or more breaks to effectively disconnect the circuit. These types of switches are connected either in a side by side manner or in tandem manner or in individual manner/arrangement to provide the function of switching ON / OFF or switching load between two different sources in case of electrical outage or in case of changing load distribution. These types of arrangements may have a position wherein the load is

completely disconnected from single or both the sources of supply. In such type of assemblies, there are various sources of indication systems which indicate which switch within the assembly is an ON position. Some of the operating mechanism are: a) modular or inbuilt which will drive the moving contacts of individual pole through a single carrier or modular carrier either in linear motion or in rotating motion, to make and break the circuit. b) wherein one of these switches has an operating handle which is driven by the user for ON and OFF operation. However, both the said mechanisms are risky. The risk associated with this is if in case of failure of operating mechanism (a) there is malfunction or welding of pole contacts and in (b) the indication of operating handle gives wrong information about switch conditions. These malfunctions can lead to associated electrical risks. In some case of construction, contact visibility is provided through transparent window which shows the actual position of contacts in a single switch. But this mechanism has limited advantage whose scope is not extended to the switch assembly of tandem position. The contact visibility of below switch is blocked which may again results in giving wrong contact indication of below switch.
US Patent No. 5,140,115 discloses that the open and closed conditions of the contacts within the industrial-rated circuit breakers is externally ascertained by means of an auxiliary switch-contact position verifier accessory. A viewing aperture in the circuit breaker accessory cover provides visual access to a color-coded shutter that forms part of the auxiliary switch accessory and operates off the circuit breaker crossbar assembly. In the event that the circuit breaker contacts remain closed when the circuit breaker operating handle is moved to the OFF position, the colored indicia verifies the actual condition of the circuit breaker contacts.
US Patent No. 5,278,530 discloses a magnetically actuated valve position sensing device for a linear or rotary valve comprising a switch housing completely enclosing one or more magnetic proximity switches. A mounting assembly comprises an outer housing for slideably receiving the switch housing, a magnetic rotary indicator on top the outer housing for indicating an open/close position for the valve and for actuating the switches in response to the shaft positions, and a shaft assembly for connecting the rotary indicator to the shaft of the rotary or linear valve.

US Patent No. 8,217,291 discloses a status indicating assembly for an electrical switching apparatus, such as a circuit breaker. The circuit breaker includes a housing, separable contacts enclosed by the housing, and an operating mechanism for opening and closing the separable contacts. The operating mechanism comprises a stored energy mechanism and a primary latch. The primary latch is pivotable between a latched position corresponding to the stored energy mechanism being chargeable, and an unlatched position corresponding to the stored energy mechanism being discharged. The status indicating assembly includes a first indicator for indicating whether the separable contacts are open or closed, a second indicator for indicating whether the stored energy mechanism is charged or discharged, and a third indicator for indicating whether or not the circuit breaker is ready to close the separable contacts.
US Patent No. 5,697,689 discloses a rotary switch having a terminal base molded on a lead frame which includes internal contacts and external terminals, along with the connecting straps between them, all formed of a single metal part. Portions of the metal of the lead frame are selectively removed in order to create a variety of switch configurations. Different switch actuating rotors are provided which further allow creation of different switch modes (single throw, double throw, etc.). The rotor is also provided with detents in order to allow for retention and indexing of the switch positions. A ramp may be selectively installed into the rotor to eliminate unwanted detent positions without requiring a different rotor. One or more "floating" movable contact elements complete the circuits when the rotor allows a respective spring to force a floating movable element into contact with both of a corresponding pair of stationary contacts of the terminal base. A separately usable illuminated indicator module is mounted on a bushing surrounding the switch rotor and the knob of the switch transmits light passing from the indicator module to the front of the knob where it can be viewed. The module includes a light distributor which directs the light from a single lamp to several positions corresponding to the switch positions.
However, none of the present inventions discloses an operating mechanism for a switch assembly which displays the ON position of one of the switches as and by way of pop up indication. Further, the said prior arts mentioned hereinabove disclose the operating mechanisms of indications whose limitations have been described hereinabove.

OBJECT OF THE INVENTION:
The object of the present invention is to provide true contact indication of each pole of the switches either in side by side manner or in tandem manner or in individual manner as even when the individual switch is mounted with motor operator for automatic operations, the contact visibility will become critical for the users, by virtue of a pop up indicator used in the switch assembly.
Brief Description of Drawings :
Fig 1 : Prospective View of Pole switch assembled with operating mechanism and Operating handle
Fig 2 : Prospective View of Pole switch assembled one over another with operating mechanism and Operating handle
Fig 3 : Prospective View of Pole switch showing internal parts of the switch assembly
Fig 4 : Left side View of Pole switch
Fig 4 (a) : Top View of Pole switch
Fig 5 : Left side View of Pole switch
Fig 5 (a) : Top View of Pole switch
Fig 6 : Left side View of Pole switches assembled one over above in both OFF position
Fig 6a : Prospective View of Pole switches assembled one over above in both OFF position
Fig 7 : Prospective View of Pole switches assembled one over above in Top switch ON position, Bottom switch OFF position
Fig 8 : Prospective View of Pole switches assembled one over above in Top switch OFF position, Bottom switch ON position

DETAILED DESCRIPTION OF INVENTION :
The present invention will now be described with the help of the accompanying drawings wherein the same numerals are used to denote the same part. However, the drawings only illustrate the invention and in no way limit the invention.
A preferable embodiment of the present invention mainly comprises of a modular rotatable type pole switch with a knife type contact system. However, it is pertinent to note that this invention is not limited to this construction alone.
As shown in Fig 3, a pole switch (2) as shown in Figure (1), consists of case (21), cover (not shown) and a moving contact holder (25) which is preferably made of an insulating material. The Moving contact holder (25) holds one or more moving contacts (22) made up of conducting material and can rotate in a rotary fashion to close the contacts with one or more Top side fixed terminal (23) and one or more bottom side fixed terminal (24). Top side fixed terminal (23) and bottom side fixed terminal (24) are made up of conductive material. The top cover (26) is made up of a moulded member which can be of transparent insulating material to allow user to see through the position of moving contacts (22). Alternatively, it can be of an opaque insulating material if it all desired. The Operating Handle (3) of Fig. 1 is rotated in a clockwise direction to operate the operating mechanism (1) to change the position of Pole switch (2) from OFF to ON. Fig 4 shows, pole switch in an ON position, Operating handle (3) shows the position of pole switch (2) in an ON condition. As shown in Fig 5, in addition to above general indication by operating handle (3) an insulating moulded member pop up indicator (27) is placed in case (21) in such a way that it can be displaced linearly to a desired level by rotating moving contact holder (25). The pop up indicator (27) is retained by a helical expansion member (28) which is placed in the case (21) as shown in figure 5. Figure 5 shows the pole switch in OFF position and the pop up indicator (27) is retained in the as shown position by helical expansion member (28), so that pop up indicator (27) is placed inside the case (21) of pole switch (2). When the operating handle (3) is operated by user, Operating mechanism (1) through its predefined way of operation rotates the moving contact holder (25) of pole switch (2) in a clockwise direction so as to make electrical connection between Top fixed terminal (23) and bottom fixed terminal (24) through the moving contacts (22). During this operation, moving contact holder(25)

activates the pop up indicator (27) so as to slide over the case(21) of pole switch(2) and project out of the case to a desired distance, so as to indicate the user that contacts in that pole switch(2) are in closed condition. Thereby this pop up indicator(27) shows the true condition of pole switch(2). This invention is not limited to this way of construction of Pop up Indicator (27) and can be placed in any such way to indicate the true condition of pole switch.
Figure 6 shows, two switch arranged in one upon another condition. It shows the OFF state of both switches and operating handle in Horizontal position, pop up indicator(27) of top pole switch (2) and pop up switch indicator(47) of bottom pole switch (4) is inside the case, so that it gives clear indication of switch condition to user . Figure 7 shows operating mechanism is operated in clockwise direction so that top pole switch (2) is operated to ON position, pop up indicator(27) of top pole switch(2) is operated by it moving contact holder(25) and projects out of pole switch so as to indicate switch is in ON condition. Similarly the operating mechanism as shown in Fig 6 is operated in an anticlockwise manner. Figure 8 shows the condition of switch, in which bottom pole switch (4) is operated to ON condition, pop up indicator(47) of bottom pole switch(4) is activated through the moving contact holder (45) so that it projects out of the case(41) to show the bottom pole switch(4) is in ON condition to user.

I/We Claim:
1. A switch assembly comprising of means for indicating the contact position of the switches in said assembly by virtue of a pop up indicator.
2. A switch assembly as claimed in claim 1, wherein the pop up indicator is activated through a moving contact holder(25)wherein the pop up indicator (27) slides over the case(21) of the switch (2) and projects out of the case to a distance, so as to indicate the real position of the switch within the assembly.
3. The pop up indicator as claimed in claim 1 wherein the said indicator is retained
by a helical expansion matter and is placed inside the case of the pole switch.
4. A switch assembly as claimed in claim 1 wherein the said assembly is arranged
in a tandem manner, in a side by side manner or in an individual manner.