Fire detector

- Nittan Co., Ltd.
Description

FIG. 1 is a perspective view of a fire detector showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a side elevational view thereof, the opposite side being a mirror image thereof; and,

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D225379 December 1972 Gallagher et al.
D226037 January 1973 Cannon et al.
D235629 July 1975 Steele
D271671 December 6, 1983 Thornton, Jr.
D276417 November 20, 1984 Fenne
D319798 September 10, 1991 Hatano
Foreign Patent Documents
543410 May 1984 JPX
Patent History
Patent number: D331547
Type: Grant
Filed: Oct 4, 1990
Date of Patent: Dec 8, 1992
Assignee: Nittan Co., Ltd. (Tokyo)
Inventors: Akio Ogawa (Tokyo), Kazuyuki Goto (Tokyo)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Marcus Jackson
Law Firm: Sughrue Mion Zinn Macpeak & Seas
Application Number: 7/594,225
Classifications
Current U.S. Class: D10/106