Rotating LED light on a magnetic base

• US 8,172,436 B2
• Filed: 12/01/2009
• Issued: 05/08/2012
• Est. Priority Date: 12/01/2009
• Status: Active Grant

• Current Assignee: Ullman Devices Corporation (Saunders Midwest LLC)
• Original Assignee: Ullman Devices Corporation (Saunders Midwest LLC)
• Inventors: Coleman, Edward S., Jianping, Qiu
• Primary Examiner(s): Ward, John A
• Application Number:
  US12/628,356
• Publication Number:
  US 20110128723A1
• Time in Patent Office: 889 Days
• Field of Search: 362/249.01, 362/249.02, 362/249.03, 362/249.12, 362/249.07, 362/365, 362/370, 362/371, 362/398, 362/269, 362/427, 362/421
• US Class Current: 362/421
• CPC Class Codes: F21S 9/02 the power supply being a battery or accumulator
• CPC Class Codes: F21V 21/096 Magnetic devices
• CPC Class Codes: F21V 21/30 Pivoted housings or frames
• CPC Class Codes: F21W 2131/301 for furniture
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A battery powered rotating LED lighting assembly with a magnetic base, a housing and a pivot post attached to the housing. The lighting assembly housing is supported by the pivot post, which is supported by a support assembly in the base.

Claims

1. A lighting assembly, comprising:

a magnetic base;

a housing comprising a plurality of LEDs and a DC power source connected to the LEDs; and

a pivot assembly connected between the magnetic base and the housing to allow pivot of the housing relative to the magnetic base, the pivot assembly comprising a pivot post having a ball defined at one end, and spaced support walls defining an inner chamber housing the ball, and further comprising a compression member positioned to exert a holding force on the ball at a location substantially opposite to the pivot post.

2. The lighting assembly according to claim 1, wherein said DC power source is a rechargable battery.

3. The lighting assembly according to claim 1, further comprising an AC power adapter/recharger for providing AC power to said plurality of LEDs and for recharging said DC power source.

4. The lighting assembly according to claim 1, further comprising a switch for controlling a level of light output by the LEDs.

5. The lighting assembly according to claim 1, wherein the LEDs are high intensity white light LEDs.

6. The lighting assembly according to claim 1, wherein the spaced support walls define a pivot post receptacle and an inner chamber and further comprising a spring, a piston and at least one stabilizer in the inner chamber.

7. The lighting assembly according to claim 6, wherein the piston has an end shaped to correspond to an end shape of the pivot post.

8. The lighting assembly according to claim 7, wherein the spring holds the pivot post in a position relative to the base by biasing the piston against the end of the pivot post.

9. The lighting assembly according to claim 1, wherein the spaced support walls have curved inner surfaces closely matched to the shape of the ball on the pivot post.

10. The lighting assembly according to claim 1, wherein the housing is puck shaped.

11. The lighting assembly according to claim 1, wherein the magnetic base comprises a magnet housing comprising at least one magnet.

12. The lighting assembly according to claim 11, wherein the strength of the magnet is 5 to 101 bs.

13. The lighting assembly according to claim 1, wherein the pivot post is comprised of a metal post with molded plastic defining the ball.

14. The lighting assembly according to claim 13, wherein the pivot post is attached to the housing by a connection assembly comprising at least one threaded screw, wherein the metal post is shaped with an outward flange that is screw connected to the molded plastic.

15. The lighting assembly according to claim 1, wherein the pivot post is attached to the housing by a connection assembly comprising at least one threaded screw, at least one nut and at least one anti-slip washer.

16. The lighting assembly according to claim 1, wherein the pivot post is attached to the housing by a connection assembly comprising at least one snap ring and at least one flexible washer.

17. The lighting assembly according to claim 1, wherein the base is composed of acrylonitrile butadiene styrene (ABS) plastic resin.

18. The lighting assembly according to claim 1, wherein the magnetic base is composed of a rubber.

19. The lighting assembly according to claim 1, wherein the housing is composed of a material selected from the group consisting of color anodized aluminum, ABS, and mixtures thereof.

20. The lighting assembly according to claim 1, wherein the pivot post is composed of a material selected from the group consisting of nylon resin, steel alloy or combinations thereof.

21. The lighting assembly according to claim 1, further comprising a transparent housing top covering the LEDs.

22. The lighting assembly of claim 1, wherein the spaced support walls further define an inner area housing the compression member in frictional contact with the ball.

23. The lighting assembly of claim 1, wherein the compression member comprises a piston biased against the ball.

24. The lighting assembly of claim 23, wherein the compression member is biased against the ball by a spring.

25. The lighting assembly of claim 24, wherein the piston has a stabilizer.

26. A lighting assembly, comprising:

a base comprising a magnet base and spaced support walls;

a housing comprising a plurality of LEDs and a DC power source connected to the LEDs; and

a pivot post attached to the housing, wherein the spaced support walls and the pivot post are pivotably connected by a ball defined on the pivot post and an inner chamber defined by the spaced support walls, wherein the inner chamber houses the ball, wherein the spaced support walls define a pivot post receptacle and an inner chamber and further comprising a spring, a piston and at least one stabilizer in the inner chamber.