Air driven diaphragm pump

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Description

FIG. 1 is a front elevational view of an air driven diaphragm pump showing my new design;

FIG. 2 is a side elevational view thereof, the opposite side being identical in appearance;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a top perspective view thereof.

Referenced Cited
U.S. Patent Documents
D264972 June 15, 1982 McMillin et al.
268413 March 1983 Wilden
D271395 November 15, 1983 Credle, Jr.
275858 October 1984 Wilden
3782863 November 1974 Rupp
3791768 February 1974 Wanner
3849033 November 1974 Schan
4247264 January 27, 1981 Wilden
4406595 September 27, 1983 Robertson et al.
4478560 October 23, 1984 Rupp
Other references
  • Photograph of the Wilden Pump M8 (undated).
Patent History
Patent number: D294947
Type: Grant
Filed: Aug 6, 1984
Date of Patent: Mar 29, 1988
Assignee: Wilden Pump & Engineering Co. (Colton, CA)
Inventor: James K. Wilden (Yucaipa, CA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Lyon & Lyon
Application Number: 6/638,054
Classifications
Current U.S. Class: Pump Or Compressor (D15/7)