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The ornamental design for the double diaphragm pump, as shown and described
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FIG. 1 is a front elevation view of the double diaphragm pump;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a left side elevation view thereof and is a mirror image of the right side;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof; and,
FIG. 6 is a front perspective view thereof.
Feitel, Ann C., Fisher, Joel T.
| Patent | Priority | Assignee | Title |
| 10823167, | Jan 31 2019 | PSG CALIFORNIA LLC; PSG WORLDWIDE, INC | Pump assembly |
| D498766, | Aug 07 2003 | SMC Corporation | Diaphragm pump |
| D499116, | Aug 07 2003 | SMC Corporation | Diaphragm pump |
| D512441, | Jul 26 2004 | SMC Corporation | Process pump |
| D695318, | Mar 26 2012 | JOH HEINR BORNEMANN GMBH | Pump |
| D797154, | Sep 29 2015 | Tacmina Corporation | Diaphragm pump |
| D817360, | Jan 23 2017 | PSG CALIFORNIA LLC; PSG WORLDWIDE, INC | Double diaphragm pump |
| ER3196, | |||
| ER3217, | |||
| ER4473, | |||
| ER669, | |||
| ER7146, | |||
| ER8710, | |||
| ER9271, |
| Patent | Priority | Assignee | Title |
| D275858, | Jun 01 1982 | Wilden Pump & Engineering Co. | Double diaphragm pump |
| D294947, | Aug 06 1984 | Wilden Pump & Engineering Co. | Air driven diaphragm pump |
| D331412, | Nov 13 1989 | WILDEN PUMP & ENGINEERING, A CORP OF CA | Air driven diaphragm pump |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Feb 12 1996 | Graco Inc. | (assignment on the face of the patent) | / |
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