Double diaphragm pump
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 |
D498766 | November 23, 2004 | Iwata |
D499116 | November 30, 2004 | Iwata |
D512441 | December 6, 2005 | Iwata |
D707259 | June 17, 2014 | Timmer |
- 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