Pressure diaphragm

- IVAC Corporation
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Description

FIG. 1 is a perspective view of a pressure diaphragm showing our new design;

FIG. 2 is an elevational view along the left side thereof;

FIG. 3 is a right end elevational view thereof; and

FIG. 4 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
69894 October 1867 Beardslee
D202701 November 1965 Davis, Jr.
D204670 May 1966 Gilson
D237631 November 1975 Katzman
D257286 October 7, 1980 Folkman
D259278 May 19, 1981 McCaw et al.
1640606 August 1927 Joyce
2369707 February 1945 Baak
2444163 June 1948 Kocmich
2535998 December 1950 Bierman
2629399 February 1953 Kulick
3499434 March 1970 Ullrich et al.
3713341 January 1973 Madsen et al.
3756243 September 1973 Schulte
3818765 June 1974 Eriksen
3880151 April 1975 Nilsson et al.
3901245 August 1975 Spitz et al.
3999553 December 28, 1976 Spitz et al.
4072056 February 7, 1978 St. Jacques Lee
Patent History
Patent number: D267743
Type: Grant
Filed: Dec 15, 1980
Date of Patent: Jan 25, 1983
Assignee: IVAC Corporation (San Diego, CA)
Inventors: Joel N. Cunningham (San Diego, CA), Richard M. Bucchianeri (Escondido, CA), Stephen H. O'Leary (Encinitas, CA)
Primary Examiner: Bernard Ansher
Law Firm: Fulwider, Patton, Rieber, Lee & Utecht
Application Number: 6/216,635
Classifications
Current U.S. Class: D24/53; D23/19; D23/21
International Classification: D2402; D2301;