Fluorescent lamp ballast

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Description

FIG. 1 is a top, right, front perspective view;

FIG. 2 is a left elevation view;

FIG. 3 is a rear elevation view; and,

FIG 4 is a bottom, plan view.

The broken line showing in FIGS. 1, 2 and 3 is included for the purpose of illustrating environmental structure only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
3482032 December 1969 McVoy, Jr.
4729740 March 8, 1988 Crowe et al.
4897627 January 30, 1990 Van Wagener et al.
4916363 April 10, 1990 Burton et al.
5006764 April 9, 1991 Swanson et al.
5260678 November 9, 1993 Van Wagener et al.
Foreign Patent Documents
644085 July 1962 CAX
728824 February 1966 CAX
Other references
  • Ballast on p. 331 of Hong Kong Enterprise, Oct. 1993.
Patent History
Patent number: D356551
Type: Grant
Filed: Aug 2, 1993
Date of Patent: Mar 21, 1995
Assignee: Motorola Lighting, Inc. (Buffalo Grove, IL)
Inventor: Youngkee Ahn (Buffalo Grove, IL)
Primary Examiner: Joel Sincavage
Attorney: J. Ray Wood
Application Number: 0/11,345
Classifications
Current U.S. Class: Transformer, Rectifier Or Casing Therefor (3) (D13/110)