Adjustable display light

• US 4,739,454 A
• Filed: 06/17/1986
• Issued: 04/19/1988
• Est. Priority Date: 06/17/1986
• Status: Expired due to Term

• Current Assignee: Satco Products Incorporated
• Original Assignee: Starbrite Lighting Limited
• Inventors: Federgreen, Richard
• Primary Examiner(s): Nelli, Raymond A.
• Application Number:
  US06/875,402
• Time in Patent Office: 672 Days
• Field of Search: 362/133, 362/219, 362/217, 362/282, 362/220, 362/285, 362/269, 362/270, 362/257, 362/277
• US Class Current: 362/133
• CPC Class Codes: F21S 4/20 with light sources held by or within elongate supports
• CPC Class Codes: F21V 14/04 by movement of reflectors in vehicle head lamps F21S41/675
• CPC Class Codes: F21V 17/04 the fastening being onto or by the light source
• CPC Class Codes: F21V 21/02 Wall, ceiling, or floor bases; Fixing pendants or arms to the bases F21V21/08 takes precedence; bases for movable standing lamps F21V21/06
• CPC Class Codes: F21V 21/0808 Adhesive means
• CPC Class Codes: F21W 2131/405 for shop-windows or displays
• CPC Class Codes: H01R 33/08 for supporting tubular fluorescent lamp

Abstract

A display lamp is provided with a generally cylindrical illumination tube, which serves as the source of light. A housing with a generally U-shaped cross section is secured over the tube so as to act as a decorative enclosure and a reflector for the tube. The housing is somewhat shorter in length than the tube and the ends of the tube protrude beyond the housing. The lamp also includes a pair of mounting members, each of which includes a generally flat top wall and a pair of depending, opposed legs which are spaced apart by a distance equal to the outside diameter of the protruding end portions of the light tube. The top surface of the top wall is provided with an adhesive for securing the lamp to the shelf. The depending legs are shaped so as to engage and retain the protruding portions of the light tube. When so engaged, the light tube and housing are rotated together so that the interior reflecting surface of the housing directs the illumination from the light tube as desired.

Claims

1. A lamp for mounting onto a mounting surface to provide directionally adjustable lighting, comprising:

an elongated lighting member having first and second cylindrical ends, said lighting member including means for illuminating the same along its length;

housing means substantially lengthwise coextensive with said lighting member, said housing means covering a substantial proportion of the periphery of said lighting member and having a surface facing said lighting member which is constructed to act as a reflector therefore, whereby the illumination provided by said lighting member is directed by said housing member, said housing member being sufficiently shorter than said lighting member to permit the first and second ends thereof to protrude beyond said housing member;

first and second mounting members, at least one of said mounting members having a mounting portion with a top wall shaped to conform to said mounting surface and first and second depending legs spaced by a distance substantially equal to the outside diameter of said cylindrical end portions of said lighting member, said first and second depending legs being made of a resilient material and resiliently engaging one of said cylindrical end portions therebetween so as to permit rotation of said end portions relative to said mounting members; and

means for retaining said top wall of said at least one mounting member in contact with said mounting surface.

2. A lamp in accordance with claim 1 wherein said lighting member comprises a transparent, elongated cylinder.

3. A lamp in accordance with claim 1 wherein said housing means comprises a generally U-shaped channel member which is dimensioned to fit snugly over the exterior of said lighting member, whereby said housing means is mounted on said lighting member for rotation therewith.

4. A lamp in accordance with claim 1 wherein at least one of said depending legs has a thickened lower portion which protrudes toward said other leg to provide a space therebetween which is less than the outside diameter of the cylindrical end portion received in said at least one mounting member.

5. A lamp in accordance with claim 4 wherein said thickened portion includes a tapered region at its top which is positioned so as to urge said cylindrical end portion upwardly against the undersurface of said top wall.

6. A lamp in accordance with claim 5 wherein said tapered region is shaped to conform to the periphery of said end portion.

7. A lamp in accordance with claim 4 wherein each of said legs includes a thickened lower portion protruding toward the opposite leg.

8. A lamp in accordance with claim 1 wherein said top wall is sufficiently thick to avoid interference between said housing means and said mounting surface when said lighting member is rotated within said mounting members.

9. A lamp in accordance with claim 1 wherein said means for retaining comprises an adhesive coating on the top surface of said top wall.

10. A lamp in accordance with claim 3 wherein at least one of said depending legs has a thickened lower portion which protrudes toward said other leg to provide a space therebetween which is less than the outside diameter of the cylindrical end portion received in said at least one mounting member.

11. A lamp in accordance with claim 10 wherein said thickened portion includes a tapered region at its top which is positioned so as to urge said cylindrical end portion upwardly against the undersurface of said top wall.

12. A lamp in accordance with claim 3 wherein said top wall is sufficiently thick to avoid interference between said housing means and said mounting surface when said lighting member is rotated within said mounting members.

13. A lamp in accordance with claim 4 wherein said top wall is sufficiently thick to avoid interference between said housing means and said mounting surface when said lighting member is rotated within said mounting members.