U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

LED beacon light

Patent 5806965 Issued on September 15, 1998. Estimated Expiration Date: Icon_subject January 27, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

D304694

Rotatable led cluster device
Patent #: 5160201
Issued on: 11/03/1992
Inventor: Wrobel

Apparatus for providing radiant energy
Patent #: 5278432
Issued on: 01/11/1994
Inventor: Ignatius, et al.

LED display unit
Patent #: 5313729
Issued on: 05/24/1994
Inventor: Sakai, et al.

Christmas tree light ring arrangement
Patent #: 5422801
Issued on: 06/06/1995
Inventor: Sangalli, Jr.

LED traffic signal light with automatic low-line voltage compensating circuit
Patent #: 5457450
Issued on: 10/10/1995
Inventor: Deese, et al.

LED lamp construction
Patent #: 5561346
Issued on: 10/01/1996
Inventor: Byrne

Light emitting diode lamp
Patent #: 5575459
Issued on: 11/19/1996
Inventor: Anderson

Multilayer led assembly
Patent #: 5577832
Issued on: 11/26/1996
Inventor: Lodhie

Marker light utilizing light emitting diodes disposed on a flexible circuit board Patent #: 5585783
Issued on: 12/17/1996
Inventor: Hall

Inventor

Application

No. 789139 filed on 01/27/1997

US Classes:

362/249, With support362/237, Substantially identical modifiers362/800LIGHT EMITTING DIODE

Examiners

Primary: Lazarus, Ira S.
Assistant: Lee, David

Attorney, Agent or Firm

Foreign Patent References

  • 2069257 GB. 08/19/1981

International Class

F21V 021/00

Abstract

An improved beacon light utilizing a plurality of LEDs. The light has a beacon portion wherein a plurality of individual LEDs are mounted on circuit boards attached together to form a substantially omnidirectional array of LEDs. The beacon portion may be constructed of upper and lower flat circular circuit boards, and a middle tubular circuit board to define a hollow cylinder. The middle circuit board is made of originally flat thin rigid circuit board material bent into a tube and attached at each free end. The middle circuit board is attached to the upper and lower rigid circuit boards using tangs extending from the middle circuit board. LEDs extend upward from the top circuit board, radially outward from the middle circuit board, and at a downward outwardly directed angle from the bottom circuit board. A base portion attached to the lower circuit board may be provided with a conventional male electrical socket member. In alternative forms, the beacon light may be spherically or conically shaped. Vent holes in the rigid circuit boards are provided for heat-dissipation. A voltage doubling circuit supplies power to the individual LEDs interconnected in both series and parallel for durability. A dome-like cover may be provided to protect the LEDs or to protect the user from injury.

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