FORM 2
THE PATENT ACT 1970
&
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See section 10 and rule 13)
1. TITLE OF THE INVENTION:
"Bus Bar Assembly for Protecting End Portions Thereof
2. APPLICANT:
(a) NAME: Larsen & Toubro Limited
(b) NATIONALITY: Indian Company registered under the
provisions of the Companies Act-1956.
(c) ADDRESS: LARSEN & TOUBRO LIMITED,
L&T House, Ballard Estate, P. O. Box: 278, Mumbai 400 001, India
3. PREAMBLE TO THE DESCRIPTION:
COMPLETE
The following specification particularly describes the invention and the manner in which it is to be performed.

Bus Bar Assembly for Protecting End Portions Thereof
Field of the invention
The present invention distribution boards used for domestic as well industrial purposes particularly in Low Voltage (LV) domain, more particularly, the present invention relates to bus bar assembly for protecting end portions thereof for LV systems.
Background of the invention
Distribution Boards / Enclosures are generally used for mounting various modular devices inside it. Distribution Boards are of 3 types:
1) Panel Boards
2) SMDB (Sub Main Distribution Boards)
3) FDB (Final Distribution Boards)
Currently, the locking arrangements used are cumbersome since they apply adhesive for joining end cap to the shroud which is not at all aesthetically pleasing or in some cases they don't even apply adhesive.
Present bus bar assemblies need adhesive to retain end cap in its place. In absence of adhesive it is difficult to retain end cap in its position.
Therefore, there is a need to provide an bus bar assembly for protecting end portions thereof for LV Systems, which over comes all drawbacks of the prior art.
Objects of the invention
Object of the present invention is to provide an bus bar assembly for protecting end portions thereof using click fit locking arrangement.

Another object of the present invention is to provide an bus bar assembly for protecting end portions thereof, which does not require any adhesives and is cost effective.
Summary of the invention
According to the present invention there is provided a comb bus bar assembly for protecting end portions thereof The assembly having a end cap, a comb / pin bar insulator and a comb / pin bus bar. The end-cap is provided for covering end-portions of the assembly. The end cap has a elongate 'U' shape profile with one end closed, and at least one pipe configured on either of vertical members of the elongate 'IT shape profile, wherein the pipe is tapping toward an open end. The comb / pin bar insulator has slots at end portion for passing pipe of the end cap at both ends thereby securing the end cap therein. The comb / pin bus bar is secured to the comb / pin bar insulator.
Brief description of the drawings
Other features as well as the advantages of the invention will be clear from the following description.
In the appended drawings:
Figure 1 shows a perspective view of a End Cap in accordance with the present invention;
Figure 2 shows another perspective view of a End Cap of figure 1;

Figure 3 shows a perspective view of Pin / Comb Bus bar Insulator in accordance with the present invention;
Figure 4 shows a perspective exploded view of Comb Bus Bar with Pin / Comb Bus Bar Insulator
Figure 5 shows a perspective Exploded view of Comb Bus Bar with Pin / Comb Bus Bar Insulator with End Cap;
Figure 6 shows cross-sectional view of Comb Bus Bar with Pin / Comb Bus Bar Insulator & End Cap; and
Figure 7 shows a perspective view of Final Assembly of Comb Bus Bar, and
Figure 8 shows a perspective view of Final Assembly of Pin Bus Bar.
Detailed description of the invention
For a thorough understanding of the present invention, reference is to be made to the following detailed description, including the appended claims, in connection with the above-described drawings. Although the present invention is described in connection with exemplary embodiments, the present invention is not intended to be limited to the specific forms set forth herein. It is understood that various omissions and substitutions of equivalents are contemplated as circumstances may suggest or render expedient, but these are intended to cover the application or implementation without departing from the spirit or scope of the claims of the present invention. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.

The present invention provides an end cap for a bus bar using click fit locking arrangement. Further, the end cap does not require any adhesives and is cost effective.
Figure 1 - 8 shows various view and components of the comb bus bar assembly in accordance with the present invention. The assembly includes an end cap (1), an in bar insulator (2), and a pin bus bar (3) or comb bus bar (4). The end cap (1) having a elongated 'U' shaped profile with one end close for restricting access. The end cap (1) is provided with at least on pipe (la) configured either of the vertical member of the end cap (1). Specifically, the pipe (la) is tapering towards open end of the end cap (1). Thinker portion of the pipe (1) is flat.
Further, the pin bar insulator (2) is an elongated member having slit on each side thereof. The pin bus bar (3) or comb bus bar (4) is secured to the pin bar insulator (2) for mounting bus bar (not shown).
The pipe (la) of the end cap (1) gets secured in the opening (2a) of the bar insulator (2). Two end caps (1) are secured on both the sides of the bus bar insulator (2) thereby securing the end caps (1) therein. The flat and thicker portion of the pipe enables to pass the end cap (1) in pressing towards the pin bar insulator (2) and restrains the end cap (1) therein. The end cap (1) has to be beaked to detach from the pin bus bar insulator (2). This configuration is click fit locking arrangement, which eliminates use of adhesive and is cost effective.
The same configurations can also be used for Comb Bus Bar / Pin bus Bar for 2 Pole Assembly, 3 Pole Assembly and 4 Pole Assembly.
The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above

teaching. The embodiments were chosen and described in order to best explain the principles of the present invention and its practical application, and to thereby enable others skilled in the art to best utilize the present invention and various embodiments with various modifications as are suited to the particular use contemplated. It is understood that various omissions and substitutions of equivalents are contemplated as circumstances may suggest or render expedient, but such omissions and substitutions are intended to cover the application or implementation without departing from the spirit or scope of the claims of the present invention.

We Claim:
1. A bus bar assembly for protecting end portions thereof, the assembly
comprising:
a end-cap for covering end-portions of the assembly, the end cap comprises,
an elongated 'U' shape profile with one end closed, and at least one pipe configured on either of vertical members of the elongated 'U' shape profile, wherein the pipe is tapping toward an open end;
a comb / pin bar insulator having slots at end portion for passing pipe of the end cap at both ends thereby securing the end cap therein; a bus bar secured to the pin bar insulator.
2. The comb bus bar assembly as claimed in claim I, wherein the bus bar is
selected from the group of a comb bus bar and a pin bus bar.