Fastener for exhaust air valves

- Flakt Aktiebolag
Description

FIG. 1 is a perspective view of a fastener for exhaust air valves embodying my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a side view taken from the right of FIG. 2;

FIG. 4 is a side view taken from the left of FIG. 2;

FIG. 5 is a rear view thereof;

FIG. 6 is a front view thereof; and

FIG. 7 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D26511 January 1897 Sharp
D240015 May 1976 Buckley
799948 September 1905 Starr
3131448 May 1964 Glatz
Foreign Patent Documents
59299 March 1981 FIX
391384 February 1977 SEX
0002863 1910 GBX
637357 May 1949 GBX
734857 August 1953 GBX
Patent History
Patent number: D278595
Type: Grant
Filed: Jul 23, 1982
Date of Patent: Apr 30, 1985
Assignee: Flakt Aktiebolag (Nacka)
Inventor: Lennart Widerby (Jonkoping)
Primary Examiner: B. J. Bullock
Law Firm: Dann, Dorfman, Herrell and Skillman
Application Number: 6/401,130
Classifications
Current U.S. Class: D/8389; D/8394