Valve diaphragm

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a top perspective view of a valve diaphragm showing my new design; and

FIG. 2 is a bottom perspective view thereof.

Referenced Cited
U.S. Patent Documents
D268048 February 22, 1983 Ueda
D268049 February 22, 1983 Ueda
2305151 December 1942 Fields
2531824 November 1950 Paille
3020020 February 1962 Boteler
3083943 April 1963 Stewart, Jr. et al.
3502300 March 1970 Harris
3511472 May 1970 Zimmerman
3655163 April 1972 Ruttan et al.
4014514 March 29, 1977 Priese
4477051 October 16, 1984 Ben-Yehuda
Patent History
Patent number: D290640
Type: Grant
Filed: Sep 18, 1984
Date of Patent: Jun 30, 1987
Assignee: Frigoscandia Contracting AB (Helsingborg)
Inventor: Gustav A. Andersson (Viken)
Primary Examiner: James R. Largen
Law Firm: Browdy and Neimark
Application Number: 6/651,821
Classifications
Current U.S. Class: D23/19