Safety flush valve fitting for automotive air conditioner

Description

FIG. 1 is a perspective view of a safety flush valve fitting for an automotive air conditioner, showing my new design;

FIG. 2 is a perspective view taken from the opposite end thereof;

FIG. 3 is an end elevational view thereof.

Referenced Cited
U.S. Patent Documents
D119175 February 1940 Shaw
D121785 August 1940 Ernst
D180992 September 1957 Britton
D217246 April 1970 Armand
D260280 August 18, 1981 Campbell
D264616 May 25, 1982 Hull
1081968 December 1913 Kitts Jr.
3890999 June 1975 Moskow
Patent History
Patent number: D274746
Type: Grant
Filed: Aug 17, 1981
Date of Patent: Jul 17, 1984
Inventor: Harrison N. Burruss (Huntsville, AL)
Primary Examiner: Catherine E. Kemper
Attorney: C. A. Phillips
Application Number: 6/293,289
Classifications
Current U.S. Class: D23/21