Double diaphragm pump
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The orthographic views not illustrated do not form part of the design. Material illustrated by dashed lines does not form part of the design.
Claims
The ornamental design for a double diaphragm pump, as shown and described.
D239210 | March 1976 | Marlow |
D275858 | October 9, 1984 | Wilden |
D294946 | March 29, 1988 | Wilden |
D331412 | December 1, 1992 | Wilden |
D382277 | August 12, 1997 | Feitel |
D448778 | October 2, 2001 | Iwata |
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- Wilden catalog image compilation (images predate above identified invention).
- Wilden manual image compilation (images predate above identified invention).
Type: Grant
Filed: Jan 23, 2017
Date of Patent: May 8, 2018
Assignee: WILDEN PUMP AND ENGINEERING LLC (Grand Terrace, CA)
Inventor: Curtis Dietzsch (Riverside, CA)
Primary Examiner: Ralf Seifert
Application Number: 29/591,723