Combined pressure relief valve and clamp

- Qualitrol Corporation
Description

FIG. 1 is a top view of a combined pressure relief value and clamp showing my new design;

FIG. 2 is a side elevational view thereof, the opposite side being the same as the side shown;

FIG. 3 is a bottom view thereof, and

FIG. 4 is another side elevational view taken 90 degrees from the side shown in FIG. 2, the opposite side being the same as the side shown.

Referenced Cited
U.S. Patent Documents
D130007 October 1941 Ranney
D226524 March 1973 Brindisi
D226952 May 1973 Brindisi
D259507 June 9, 1981 MacInnes et al.
1774690 September 1930 Willaughby
2592673 April 1952 Folmsbee
2599622 June 1952 Folmsbee
2821991 February 1958 Marx
2886054 May 1959 Smith et al.
3008485 November 1961 Johnson et al.
3035604 May 1962 Portis
3131718 May 1964 Mingrone
4074696 February 21, 1978 Romanowski
4431023 February 14, 1984 Johnson
Patent History
Patent number: D282393
Type: Grant
Filed: Apr 1, 1983
Date of Patent: Jan 28, 1986
Assignee: Qualitrol Corporation (Fairport, NY)
Inventor: Wendell D. Johnson (Fairport, NY)
Primary Examiner: James R. Largen
Attorneys: S. J. Rudy, C. L. Johnson
Application Number: 6/481,258
Classifications
Current U.S. Class: D23/20