FORM 2
THE PATENTS ACT, 1970 (39 of 1970)
As amended by the Patents (Amendment) Act, 2005
&
The Patents Rules, 2003
As amended by the Patents (Amendment) Rules, 2006
COMPLETE SPECIFICATION
(See section 10 and rule 13)
TITLE OF THE INVENTION
A circuit breaker and a kiosk combination
APPLICANT
Crompton Greaves Limited, CG House, Dr Annie Besant Road, Worli, Mumbai 400 030,
Maharashtra, India, an Indian Company
INVENTORS
Gosavi Gopal, Shukla Raghunath, Prashant Chitnis of Crompton Greaves Ltd , S2 Division, Switchgear Complex, Ambad Nashik, Maharashtra, India, Indian National
PREAMBLE TO THE DESCRIPTION
The following specification particularly describes the invention and the manner in which it is to be performed:

FIELD OF THE INVENTION
The present invention relates generally to a kiosk more particularly, to a kiosk for
housing a circuit breaker.
DESCRIPTION OF THE BACKGROUND ART
Circuit Breaker is an automatic electrical switch designed to protect an electrical
circuit from damage caused by overload or short circuit. The basic function of circuit breaker is to detect and isolate faulty circuit. Circuit breakers are very critical components in power system and their function significantly affects the overall operation of the system. The maintenance of circuit breakers deserves special consideration because of their importance for routine switching and for protection of other equipment.
Better functioning of circuit breaker always yields from proper maintenance. It is
comfortable to service and maintain the circuit breakers installed for indoor applications i.e. installed in an enclosed area with locality near by. But servicing a circuit breaker installed for outdoor applications i.e. installed at a site in any remote area is very difficult.
Typically circuit breakers are present inside a switchgear panel. The panel is
generally divided into two halves wherein the upper half having metering box and other connections, whereas the circuit breaker is housed in the lower half. The circuit breaker is connected with the bushings through long connections passes through the panel. The switch gear panel is closed by a horizontally operated door with hinge operation on side.
Due to the complex structure of switchgear panel it is difficult to rack-in and rack-
out of the switchgear at the time of servicing. Further at the remote site it is difficult to get labours to lift the circuit breaker for maintenance. The connections of circuit breaker runs from

lower half to bushings mounted on the top of the kiosk, which makes the approach more cumbersome. Long connections from circuit breaker to bushings involve cost implications also.
Thus, there is a need to provide a switchgear panel that overcomes at least some
of the above noted drawbacks.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a kiosk for housing a circuit
breaker that provides an easy access to the circuit breaker for maintenance purposes.
Another object of the present invention is to provide a kiosk for housing a circuit
breaker that reduces the length of the connection from circuit breaker to bushing thereby reducing the cost involved.
Accordingly disclosed herein is a circuit breaker and a kiosk combination, wherein the kiosk comprises an upper cabinet and a lower cabinet separated by a horizontally disposed partition member, the upper cabinet having an access window closed with a door hinged to an edge of the upper cabinet, the door adapted to be moved in upward direction to close the door and moved in downward direction to open the door, the door including a first pair of parallely arranged guide rails disposed on its inner surface along the length of the door, the partition member having a second pair of parallely arranged guide rails disposed thereon and aligned with the first pair of guide rails in the open position of the door, the circuit breaker being located in the upper cabinet and slidably movable back and forth on the first pair of guide rails in the open position of the door.
According to various embodiments of the present invention, a pair of foldable support linkages connected between the upper cabinet and the door for providing support to the

door in its open position, one end of each of the support linkages being connected to a distal end of a corresponding guide rail of the second pair of guide rails whereas, the opposite end of each of the support linkages is connected to an upper portion of the upper cabinet.
According to various embodiments of the present invention, the circuit breaker
has a pair of wheels attached to its bottom portion, each of the wheels being slidably engaged with a corresponding guide rail of the second pair of guide rails.
According to various embodiments of the present invention, the linearly arranged
first pair of guide rails and the second pair of guide rails are separated against each other by a distance, and wherein a corresponding connecting element links the first and second pair of guide rails for smooth traversing of the circuit breaker therebetween.
According to some embodiments, the door has an opening formed on the outer
surface thereof and a bottom portion of the circuit breaker when positioned on the first pair of guide rails is accessed through the opening.
It is to be understood that both the foregoing general description and the
following detailed description of the present embodiments of the invention are intended to provide an overview or framework for understanding the nature and character of the invention as it is claimed. The accompanying drawings are included to provide a further understanding of the invention and are incorporated into and constitute a part of this specification. The drawings illustrate various embodiments of the invention and together with the description serve to explain the principles and operation of the invention.
A BRIEF DESCRIPTION OF THE DRAWINGS

The above-mentioned and other features and advantages of the various
embodiments of the invention, and the manner of attaining them, will become more apparent and will be better understood by reference to the accompanying drawings, wherein:
FIG, 1 illustrates a side elevational view of a kiosk having an upper cabinet and a
lower cabinet the upper cabinet retaining a partially displayed circuit breaker therein in closed position of the door attached to the upper cabinet according to an embodiment of the present invention;
FIG. 2 shows a perspective view of the upper cabinet as shown in FIG. 1 showing
a first pair of guide rails disposed on an inner surface of the door, which is open condition, and a second pair of guide rails disposed within the upper cabinet;
FIG. 3 shows a side elevational view of the kiosk of FIG. 1 with the door in open
condition;
FIG. 4 shows a bottom perspective view of the door of FIG. 2 showing a cover
that is attached to an opening provided an outer surface of the door in open condition;
FIG. 5a shows a front elevational view of a guide rail of the first pair of guide
rails; and
FIG. 5b shows a front elevational view of a connecting element of the present
invention according to an embodiment of the present inventiori-
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 1 illustrates a side elevational view of a combination of a kiosk 100 and a
circuit breaker 102 wherein, the kiosk 100 houses the circuit breaker 102 therein according to an embodiment of the present invention. The kiosk 100 is constructed by arranging together an

upper cabinet 104, a lower cabinet 106, and a partition member 108 positioned therebetween to separate the upper cabinet 104 and the lower cabinet 106 from each other. The upper cabinet 104 has a roof top 110 positioned thereon that holds a plurality of bushings 112 (3 pairs, in correspondence with R Y B phases) and connected with the circuit breaker 102 in known manner. Bushing 116 form an input port for connecting the circuit breaker 102 with a power supply whereas an output port through the bushings 112 and connected to the electrical equipment. The kiosk 100 is preferably rested on a stand 118, which has some height, so as to make the total height of the bushing reach up to 3 meters from the ground. The norm of following this height of the bushing from the ground is in line with the standards followed in numerous industrial applications. The upper cabinet 104 securely houses the circuit breaker 102 and its electrical connections whereas, the lower cabinet 106 houses the metering unit 120- for example Voltmeter, Ammeter, Wattmeter, etc., therein. A bottom cabinet door 122 is also attached to the lower cabinet 106 that may be opened via a door handle 124 for accessing the metering unit 120. Preferably, the kiosk 100 is located at an off-site/remote location. However, the kiosk 100 may also be implemented at other locations as well and be considered within the scope of the present invention.
The upper cabinet 104 of the kiosk 100 is defined by two side walls 126, one back
wall 128, the rooftop 110, and the partition member 108. These members are assembled orthogonally to each other to define an enclosure having an access window 130. Preferably, the access window 130 is constructed to be positioned on the front side of the enclosure. However, the access window 130 may also be provided on any one of the sides or, on the back wall 128 of the upper cabinet 104 and will be considered to be within the scope of the present invention. A door 132 is hinged 134 with an edge 136 of the upper cabinet 104 and movable against the

access window 130 in upward and downward directions. The hinged connection 134 is provided adjacent and below the access window 130. The door 132 is movable in upward direction to close the access window 130 (FIG. 1) and movable in downward direction to open the access window 130. The open position of the door 132 against the access window 130 is shown in FIG. 2. As noted above, the access window 130 may be provided on any one of the two walls or on the back wall 128 of the upper cabinet 104. Thus, it will be understood by a skilled person in the art that the door 132 is also capable of being hinged to any of the edges provided adjacent and below the access window 130 so as to allow opening and closing of the door 132 against the access window 130.
FIGS. 1-4 also show that one of the side walls 126 has an opening formed thereon. The opening is generally covered by a piece of sheet 138 of a slightly larger dimension than that of the opening. The sheet 138 is fixedly attached to the side walls 126 by known means so as to cover the opening. Normally, the opening is closed, however, if mantling or dismantling of the upper cabinet 104 is required then this sheet 138 may be removed therefrom and the internal area of the enclosure may be accessed.
FIG. 2 shows the door 132 that is hinged 134 to the upper cabinet 104 in open condition. The door 132 is defined by a surface that has four sides 140, an inner surface 142, and an outer surface 144. The door 132 also has a latch 146 that facilitates in manual opening and closing of the door 132 against the access window 130. The inner surface 142 has a first pair of elongated guide rails formed thereon. Each of the guide rails of the first pair of guide rails 148 have a length that extends in the direction of the access window 130. Further, both the guide rails are arranged parallely to each other and disposed in proximity of opposite sides 140 of the door 132. Furthermore, as shown in FIG. 2, each of the guide rails stop at a distance from the hinged

connection 134 between the upper cabinet 104 and the door 132. The guide rails may be constructed from metallic or non-metallic materials. Preferably, the outer surface 144 of the door 132 has an opening formed thereon that may be opened and closed by a covering member 150. As the door 132 is opened and closed, the first pair of guide rails 148 also moves therealong. So, in the closed position of the door 132. the first pair of guide rails 148 are positioned within the enclosure whereas, in the open position of the door 132 the first pair of guide rails 148 is positioned horizontally along with the door 132.
As shown in FfGS. 2 and 3, the upper cabinet 104, having the partition member
108 on its bottom, has a second pair of guide rails 152 disposed thereon. The second pair of guide rails 152 also extend longitudinally adjacent from the access window 130 inwardly towards the back wall 128 of the upper cabinet 104. The second pair of guide rails 152 is also arranged parallely against each other on the partition member 108 and positioned in close proximity to the opposite sides of the partition member 108. The circuit breaker 102 is disposed within the upper cabinet 104 and positioned on the second pair of guide rails 152. Preferably, the circuit breaker 102 has a pair of wheels 154 attached to its bottom portion 156 that in turn movably engages a corresponding guide rail of the second pair of guide rails 152. The circuit breaker 102 with the help of the pair of wheels 154 moves on to the first pair of guide rails 148 in case any maintenance is required therein. However, there may be other means of engaging the circuit breaker 102 with the second pair of guide rails 152 and be considered within the scope of the present invention. In several embodiments of the present invention, a sliding mechanism may also be attached to the bottom portion 156 of the circuit breaker 102 which in turn slidably engages the second pair of guide rails 152 and be considered within the scope of the present invention.

FIG. 2 shows the door 132, which is in open condition against the access window
130, having the first pair of guide rails 148 and the separating member having the second pair of guide rails 152 formed thereon, respectively. As noted above, the first pair of guide rails 148 is disposed within the upper cabinet 104 when the door 132 is in closed position (FIG. 1). However, as shown in FIG. 2, when the door 132 is in open position the first pair of guide rails 148 is aligned with the second pair of guide rails 152. The hinged connection 134 positioned in between the first and the second pair of guide rails 152. It is to be understood that the height of both the first pair of guide rails 148 as well as the second pair of guide rails 152 are same. Further, a gap 158 (shown in FIG. 3) that is generally present between the first and the second pair of guide rails 152 at the hinged connection 134 is for the purpose of accommodating smooth movement of the door 132 against the upper cabinet 104. This gap 158 is very small so as to ensure smooth traverse of the circuit breaker 102 therebetween. For example, the gap 158 between the first and the second pair of guide rails 152 are smaller than the radius of the pair of wheels 154 attached at the bottom portion 156 of the circuit breaker 102.
Reference in the following description will now be given to FIGS. 3 and 4 to explain the manner in which the circuit breaker 102 is accessed for maintenance purposes. Before accessing the circuit breaker 102, the main power supply is turned off. Thereafter, the door 132 that is generally in closed position with respect to the access window 130 and the upper cabinet 104 is opened. The bolted electrical contacts between the circuit breaker 102 and the bushings 112 are dismantled. This may be done either through the opening provided on one of the side walls 126 or through the access window 130. The isolated circuit breaker 102 that is rested on the second pair of guide rails 152 and slidably engaged thereto is taken outside from the upper cabinet 104. The circuit breaker 102 traverses on the second pair of guide rails 152 and

crosses over the gap 158 present above the hinged connection 134 is received on the first pair of guide rails 148. Position of the circuit breaker 102 on the first pair of guide rails 148 is shown in FIGS. 3 and 4.
Due to the position of the circuit breaker 102 on the first pair of guide rails 148,
the circuit breaker 102 can be easily accessed. Such complete access thereof becomes very imperative in doing maintenance work within the circuit breaker 102. As noted above, the door 132 also has an opening that is, in normal condition, closed by the covering member 150. As shown in FIG. 4, when the circuit breaker 102 is positioned on the first pair of guide rails 148 on the door 132, the covering member 150 may be removed therefrom so as to access the bottom portion 156 of the circuit breaker 102. Thus, a skilled person would appreciate the benefit of the providing a covering member 150 on the outer surface 144 if the door 132.
Typically, the circuit breaker 102 that is used in the various embodiments described above have a weight of about 100 kg. So, the door 132 and the hinged connection 134 between the door 132 and the upper cabinet 104 should be strong enough so as to support the circuit breaker 102 positioned thereon for maintenance purposes. Providing such strong hinged connection 134 and sturdy door 132 becomes an expensive proposition most of the times for manufacturing companies. However, another way of provides strong support to the door 132 would be to providing some support to the door 132 against the upper cabinet 104.
In one embodiment of the present invention, a pair of foldable support linkage is
connected between the door 132 and the upper cabinet 104. Preferably, one end 162 of each of the support linkages 160 is connected to a distal end 164 of a corresponding guide rail of the first pair of guide rails 148. The opposite end 166 o f Teach of the support linkages 160 is connected to an upper portion 168 of the upper cabinet 104. Preferably, the opposite end 166 is connected to

an inner surface 142 of the upper cabinet 104. However, in other embodiments of the present invention, the one end 162 of each of the pair of foldable support linkages 160 is connected to the inner surface 142 of the door 132 whereas, the opposite end 166 of the pair of foldable support linkages 160 is connected to the upper portion 168 of the upper cabinet 104. Alternatively, the one end 162 may also be connected to the outer surface 144 of the door 132 while the opposite end 166 may be connected to an outer surface 144 of the upper cabinet 104. Various other embodiments are also conceivable that is capable of providing adequate support to the door 132 when the circuit breaker 102. Each of the support linkages 160 is preferably foldable in between the door 132 and the upper cabinet 104. This is to ensure that when the door 132 is closed the support linkages 160 is folded and positioned within the upper cabinet 104 whereas when the door 132 is in open position, the support linkages 160 stretch outside to provide necessary support.
As noted above; there exists the gap 158 in between the first pair and the second
pair of guide rails 152. According to another embodiment of the present invention and as shown in FIGS. 3, 4, and 5b, a connecting element 170 is used to fill that gap 158 so that a smooth traversing of the circuit breaker 102 occurs when the circuit breaker 102 is moved between the second pair of guide rails 152 and the second pair of guide rails 152. As shown in FIG. 5a, each of the ends of the first pair of guide rails 148 that are nearer to the access window 130 of the upper cabinet 104 has a longitudinal slot 172 formed therein- Each of the connecting elements 170 (FIG. 5b) has a pair of holes 174 that matches with the longitudinal slot of the guide rails. After matching, a pin or a thin rod may be inserted within the sots so as to the slidabiy lock the connecting element 170 against the corresponding guide rail of the first pair of guide rails 148. The slidable arrangement between the two allows the connecting element 170 to adjust the total

length of the first pair of guide rails 148 with respect to the second pair of guide rails 152. For example, when the door 132 is in open position, the connecting element 170 is extended towards the access window 130 in such a manner that the connecting element 170 crosses the partition between the door 132 a.nd the upper cabinet 104 to meet the second pair of guide rails 152, This ensures that the slidable circuit breaker 102 easily crosses the partition to the first pair of guide rails 148. However, when the door 132 is about to be in set in its closed position, the connecting element 170 is slidably pushed backward in a manner that the connecting element 170 retracts on to the door 132. Thereafter, the door 132 is closed against the access window 130.
The circuit beaker, as shown in FIG.1, has got electrical connections that are connected with the bushings 112 with copper/aluminium connections. It will be appreciated by a skilled person in the art, that due to the positioning of the circuit breaker 102 in the upper cabinet 104, the length of the copper wirings required for maintaining electrical connection between the circuit breaker 102 and the bushings 112 is reduced. This reduces the cost of copper as a lesser length of connections would now be required against the prior art length of similar connections. Another benefit of positioning the circuit breaker 102 within the upper cabinet 104 is during maintenance. If the circuit breaker 102 requires any maintenance, the bolted electrical joints between the circuit breaker 102 and the bushings 112 are easily dfsmantfed through the opening, which is provide on one of the side walls 126.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit and scope of the invention. Thus it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

We Claim:
1. A circuit breaker and a kiosk combination, wherein the kiosk comprises:
an upper cabinet and a lower cabinet separated by a horizontally disposed partition member, the upper cabinet having an access window closed with a door hinged to an edge of the upper cabinet, the door adapted to be moved in upward direction to close the door and moved in downward direction to open the door, the door including a first pair of parallely arranged guide rails disposed on its inner surface along the length of the door, the partition member having a second pair of parallely arranged guide rails disposed thereon and aligned with the first pair of guide rails in the open position of the door, the circuit breaker being located in the upper cabinet and slidably movable back and forth on the first pair of guide rails in the open position of the door.
2. The circuit breaker and a kiosk combination as claimed in claim 1, further including a pair of foldable support linkages connected between the upper cabinet and the door for providing support to the door in its open position, one end of each of the support linkages being connected to a distal end of a corresponding guide rail of the first pair of guide rails whereas, the opposite end of each of the support linkages is connected to an upper portion of the upper cabinet.
3. The circuit breaker and a kiosk combination as claimed in claim 2, wherein the pair of foldable support linkages is a pair of chain.

4. The circuit breaker and a kiosk combination as claimed in claim 1, wherein the circuit breaker has a pair of wheels attached to its bottom portion, each of the wheels being slidably engaged with a corresponding guide rail of the second pair of guide rails.
5. The circuit breaker and a kiosk combination as claimed in claim I, wherein the window is formed on the front side of the kiosk.
6. The circuit breaker and a kiosk combination as claimed in claim 1, wherein the linearly arranged first pair of guide rails and the second pair of guide rails are separated against each other by a distance, and wherein a corresponding connecting element links the first and second pair of guide rails for smooth traversing of the circuit breaker therebetween.
7. The circuit breaker and a kiosk combination as claimed in claim 6, wherein each of the connecting elements are slidably engaged with a corresponding guide rail of the first pair of guide rails.
8. The circuit breaker and a kiosk combination as claimed in claim 1, wherein the door has an opening formed on an outer surface thereof, a bottom portion of the circuit breaker when positioned on the first pair of guide rails is accessed through the opening.