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 lighting fixture for mounting on a surface or a pole
APPLICANTS
Crompton Greaves Limited, CG House, Dr Annie Besant Road, Worli, Mumbai 400 030, Maharashtra, India, an Indian Company
INVENTORS
Uttam Banerjee of Crompton Greaves Ltd, Global R&D Centre, Kanjur Marg. Mumbai, Maharashtra, India, an 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
This invention relates to lighting fixture for mounting on a surface or a pole and more particularly to a streetlight or floodlight lighting fixture which is adapted to be mounted on a horizontal or vertical surface or a pole. BACKGROUND OF THE INVENTION
Generally, streetlights are mounted on a pole whereas floodlights are mounted on a horizontal or vertical surface. Therefore, the lighting fixtures for streetlight and floodlight applications are provided different and are not interchangeable.
The lighting fixture for streetlights can be mounted on a pote through different means and ways. For example, a bracket is first fastened on the pole and the lamp housing of the streetlight is supported on the bracket. Alternatively, a deep hole of 70-80 mm is provided in the lamp housing in which the free end of the pole is received and fastened by screws.
Similarly, the flood lighting fixture is first fastened on a bracket which is then mounted on a horizontal or vertical surface.
The lighting fixture for streetlight and floodlight applications is required to be manufactured separately. There is a need of a common lighting fixture which can be interchangeably used for streetlight or floodlight applications or in general can be mounted on a surface or a pole without any modifications therein.

DETAILED DESCRIPTION OF THE INVENTION
According to the invention, a lighting fixture for mounting on a surface or a pole is provided. The lighting fixture comprise a lamp housing and a bracket having a flat surface and a pair of arms fa'cing each other extending from the opposite ends of the flat surface, the lamp housing being pivotally mounted on said arms of the bracket, the flat surface comprising a hole and a hollow cylindrical member mounted concentrically around said hole, the fixture being mounted on said surface by mounting the flat surface of the bracket on said surface, the fixture being mounted on the pole by mounting the hollow cylindrical member on the pole which being received therein through said hole on the flat surface of the bracket.
According to a preferred embodiment of the invention, the lamp housing is adapted to house therein a streetlight or a floodlight and components related thereto such as ballast, reflector, lenses etc. One side of the lamp housing facing the hollow cylindrical member is provided with a shallow pole receiving hole of 10mm depth for receiving a free end of the pole therein for providing secondary support to the lamp housing when the fixture is mounted on the pole. The hole on the flat surface of the bracket is provided at the center of the flat surface. The hollow cylindrical member is disposed between the arms of the bracket. The flat surface is fastened on the surface, horizontal or vertical, by fastening means like screws extending through apertures or slits provided on the either sides of said hole. The hollow cylindrical member is fastened on the pole by fastening means like screws extending through apertures provided on the hollow cylindrical member. The lamp housing is supported on the arms of the bracket by bolts extending through slits provided on the arms into the lamp housing.

These and other aspects, features and advantages of the invention will be better understood with reference to the following detailed description, accompanying drawings and appended claims, in which,
Fig I is a perspective view of a lighting fixture for mounting on a surface or a pole mounted on a pole according to a preferred embodiment.
Fig 2 is a perspective view of a lighting fixture for mounting on a surface or a pole mounted on a surface according to a preferred embodiment.
Fig 3 is an isometric view of a bracket of a lighting fixture for mounting on a surface or a pole according to a preferred embodiment.
As shown in Figs 1-3, according to a preferred embodiment, a lighting fixture for mounting on a horizontal or vertical surface 1 or a pole 2 comprises a bracket 3 and lamp housing 4. The bracket 3 is C-shaped and comprises a flat surface 5 and two arms (6&7) facing each other extending from the opposite ends of the flat surface 5. The flat surface 5 is provided with a hole 8 at its center and a pair of parallel slits 9 on either sides of the hole 8. A hollow cylindrical member 10 is mounted concentrically around the hole 8 such that the hollow cylindrical member 10 remains disposed between the two arms (6&7). Apertures 11 are provided on the hollow cylindrical member 10 for extending fastening means such as screws 12 therethrough. The hollow cylindrical member 10 is preferably welded on the flat surface 5. The lamp housing 4 is pivotally supported on the arms (6&7) of the bracket 3 by bolts 13 extending therein through slits 14 provided on the arms (6&7). One side 15 of the lamp housing 4 facing the hollow cylindrical member 10 is provided with a shallow pole receiving hole 16 of 10mm depth for receiving the pole 2 therein for providing extra support to the lamp housing 4 when the lighting fixture is mounted on the pole

2. The lamp housing 4 may house a floodlight or streetlight including additional components thereof such as reflectors, ballast, lenses etc,
For mounting the lighting fixture on a horizontal or vertical surface 1 typically for floodlight application, the flat surface 5 of the bracket 3 is simply fastened to the horizontal or vertical surface 1 by fastening means such as screws 12 extending through the slits 9 provided on the flat surface 5 into the horizontal or vertical surface 1. Slits 9 provide additional flexibility in the placement of screws 12. However, screw apertures may also be provided on the flat surface 5 of the bracket 3.
For mounting the lighting fixture on the pole 2 typically for streetlight application, the free end of the pole 2 is received into the shallow pole receiving hole 16 through the hole 8 on the flat surface 5 of the bracket 3 and the hollow cylindrical member 10. The hollow cylindrical member 10 is fastened to the pole 2 by means of fastening means such as screws 12 through screw apertures 11 provided thereupon. Thus, not only the lighting fixture is mounted on the pole 2 but the lamp housing 4 is also provided secondary support in addition to the support provided thereto by the arms (6&7) of the bracket 3.
According to the invention, the lighting fixture may be interchangeably used without any modifications for mounting on a horizontal or vertical surface or a pole. Also, while mounting the lighting fixture on the pole, a secondary support to the lamp housing is provided thereby rendering the lamp housing on the fixture more steady and stable. The lamp housing only requires a shallow pole receiving hole of 10mm depth compared to the conventional requirement of a pole receiving hole of 70 mm depth wherein the lamp housing is held on the pole without any bracket. This leads to a reduction in the weight of the lamp housing by 30%.

Although the invention has been described with reference to a specific embodiment, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiment, as well as alternate embodiments of the invention, will become apparent to persons skilled in the art upon reference to the description of the invention. It is therefore contemplated that such modifications can be made without departing from the scope of the invention as defined in the appended claims.

We claim:
1. A lighting fixture for mounting on a surface or a pole, said fixture comprising a lamp housing and a bracket having a flat surface and a pair of arms facing each other extending from the opposite ends of the flat surface, the lamp housing being pivotally mounted on said arms of the bracket, the flat surface comprising a hole and a hollow cylindrical member mounted concentrically around said hole, the fixture being mounted on said surface by mounting the flat surface of the bracket on said surface, the fixture being mounted on the pole by mounting the hollow cylindrical member on the pole which being received therein through said hole on the flat surface of the bracket.
2. The lighting fixture as claimed in claim 1, wherein one side of the lamp housing facing the hollow cylindrical member comprising a shallow pole receiving hole for receiving a free end of the pole therein for providing secondary support to the lamp housing while the fixture being mounted on the pole.
3. The lighting fixture as claimed in claim 1, wherein the depth of the pole receiving hole is 10mm.
4. The lighting fixture as claimed in claim 1, wherein the lamp housing is adapted to house therein a streetlight or a floodlight and components related thereto.
5. The lighting fixture as claimed in claim 1, wherein said hole is provided at the center of the flat surface.
6. The lighting fixture as claimed in claim 1, wherein the hollow cylindrical member is disposed between the arms of the bracket.

7. The lighting fixture as claimed in claim 1, wherein the flat surface is fastened on the surface, horizontal or vertical, by fastening means like screws extending through apertures or slits provided on the either sides of said hole.
8. The lighting fixture as claimed in claim 1, wherein the hollow cylindrical member is fastened on the pole by fastening means like screws extending through apertures provided on the hollow cylindrical member,
9. The lighting fixture as claimed in claim 1, wherein the lamp housing is supported on the arms of the bracket by bolts extending through slits provided on the arms into the lamp housing.