Air driven diaphragm pump
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Description
FIG. 1 is a front perspective view of an air driven diaphragm pump showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a side elevational view thereof, the opposite side being identical in appearance;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
Other references
D268413 | March 29, 1983 | Wilden |
D275858 | October 9, 1984 | Wilden |
D294946 | March 29, 1988 | Wilden |
D294947 | March 29, 1988 | Wilden |
- Graco Inc.--Air Powered 16 GPM Diaphragm Pump (Husky 715) .COPYRGT.1987. Warren Rupp-Houdaille-1/2" SandPiper Air-Powered Double Diaphragm Non-Metallic Pump (PB1/2-A) .COPYRGT.1988. ARO Corporation-1/2" Diaphragm Pumps .COPYRGT.1987.
Patent History
Patent number: D331412
Type: Grant
Filed: Nov 13, 1989
Date of Patent: Dec 1, 1992
Assignee: Wilden Pump & Engineering Co. (Colton, CA)
Inventor: deceased Wilden (late of Yucaipa, CA)
Primary Examiner: A. Hugo Word
Assistant Examiner: R. Seifert
Law Firm: Lyon & Lyon
Application Number: 7/434,761
Type: Grant
Filed: Nov 13, 1989
Date of Patent: Dec 1, 1992
Assignee: Wilden Pump & Engineering Co. (Colton, CA)
Inventor: deceased Wilden (late of Yucaipa, CA)
Primary Examiner: A. Hugo Word
Assistant Examiner: R. Seifert
Law Firm: Lyon & Lyon
Application Number: 7/434,761
Classifications