Compact fluorescent lamp

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Description

FIG. 1 is a perspective view of a compact fluorescent lamp showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is an elevational view looking from the right of FIG. 2;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof.

This article is a compact fluorescent lamp which incorporates a discharge tube, ballast etc. therein and can be lighted by threadably inserting it, like an incandescent lamp, into a socket.

Referenced Cited
U.S. Patent Documents
372313 November 1887 Haines
4237400 December 2, 1980 Wesselink et al.
Foreign Patent Documents
2723498 December 1978 DEX
Other references
  • Lighting Design & Application, 6/80, p. 50, North American Philips Lighting Corp. SL Lamp. Official Gazette issued on Feb. 28, 1961, U.S. Design Patent No. Des. 189,822. Official Gazette issued on Oct. 20, 1970, U.S. Design Patent No. Des. 218,975. Official Gazette issued on Dec. 22, 1970, U.S. Design Patent No. Des. 219,516. Official Gazette issued on Oct. 15, 1980, Swedish Design Application No. 79-1570. Official Gazette issued on Oct. 15, 1980, Swedish Design Application No. 79-1571. Official Gazette issued on Mar. 18, 1981, Swedish Design Application No. 80-1424. Official Gazette issued on Dec. 1, 1962, Japanese Design Registration No. 211701 registered on Apr. 10, 1962.
Patent History
Patent number: D274472
Type: Grant
Filed: Dec 23, 1981
Date of Patent: Jun 26, 1984
Assignee: Tokyo Shibaura Denki Kabushiki Kaisha (Kawasaki)
Inventor: Masumi Nanba (Funabashi)
Primary Examiner: Susan J. Lucas
Law Firm: Finnegan, Henderson, Farabow, Garrett & Dunner
Application Number: 6/333,889