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Patent
   D275858
Priority
Jun 01 1982
Filed
Jun 01 1982
Issued
Oct 09 1984
Expiry
Oct 09 1998
Inventors
Wilden, Ja…
Assg.orig
WILDEN PUM…
Assg.curr
Wilden Pum…
Entity
unknown
Referenced by
42
References
8
Maint.:
n/a
The ornamental design for a double diaphragm pump, substantially as shown and described.

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

FIG. 2 is an elevational view of one side thereof, the other side being a mirror image;

FIG. 3 is a back elevational view thereof; and

FIG. 4 is a top plan view thereof.
INVENTORS:

Wilden, James K.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
10422331, Aug 12 2016 INGERSOLL-RAND INDUSTRIAL U S , INC One piece diaphragm
12116994, Oct 11 2018 PSG Germany GmbH Diaphragm pump
5169296, Mar 10 1989 WILDEN PUMP AND ENGINEERING LLC Air driven double diaphragm pump
5213485, Mar 10 1989 WILDEN PUMP AND ENGINEERING LLC Air driven double diaphragm pump
5441281, May 21 1993 WILDEN PUMP AND ENGINEERING LLC Shaft seal
5538042, May 21 1993 WILDEN PUMP AND ENGINEERING LLC Air driven device
5619786, May 21 1993 WILDEN PUMP AND ENGINEERING LLC Method of forming a seal between a control shaft and bushing
5711658, Dec 04 1996 Ingersoll-Rand Company Diaphragm pump with improved flow manifolds
5743170, Mar 27 1996 WILDEN PUMP AND ENGINEERING LLC Diaphragm mechanism for an air driven diaphragm pump
5927954, May 17 1996 WILDEN PUMP AND ENGINEERING LLC Amplified pressure air driven diaphragm pump and pressure relief value therefor
5957670, Aug 26 1997 WILDEN PUMP AND ENGINEERING LLC Air driven diaphragm pump
6102363, Apr 20 1998 WILDEN PUMP AND ENGINEERING LLC Actuator for reciprocating air driven devices
6142749, Jul 14 1998 WILDEN PUMP AND ENGINEERING LLC Air driven pumps and components therefor
6152705, Jul 15 1998 WILDEN PUMP AND ENGINEERING LLC Air drive pumps and components therefor
6158982, May 17 1996 WILDEN PUMP AND ENGINEERING LLC Amplified pressure air driven diaphragm pump and pressure relief valve therefor
6257845, Jul 14 1998 WILDEN PUMP AND ENGINEERING LLC Air driven pumps and components therefor
6357723, May 17 1996 WILDEN PUMP AND ENGINEERING LLC Amplified pressure air driven diaphragm pump and pressure relief valve therefor
6435845, Jul 15 1998 WILDEN PUMP AND ENGINEERING LLC Air driven devices and components therefor
6746637, Nov 15 1999 Westinghouse Air Brake Technologies Corporation Process for making chemical resistant pump diaphragm
7399168, Dec 19 2005 PSG CALIFORNIA LLC; PSG WORLDWIDE, INC Air driven diaphragm pump
7517199, Nov 17 2004 Proportionair, Incorporated Control system for an air operated diaphragm pump
7658598, Oct 24 2005 Proportionair, Incorporated Method and control system for a pump
7811067, Apr 19 2006 PSG CALIFORNIA LLC; PSG WORLDWIDE, INC Air driven pump with performance control
8292600, Nov 17 2005 Proportionair, Incorporated Control system for an air operated diaphragm pump
8360745, Apr 19 2006 PSG CALIFORNIA LLC; PSG WORLDWIDE, INC Air driven pump with performance control
8496451, Jun 21 2010 PSG CALIFORNIA LLC; PSG WORLDWIDE, INC Pump diaphragm
D291319, Aug 10 1984 Diaphragm pump
D331412, Nov 13 1989 WILDEN PUMP & ENGINEERING, A CORP OF CA Air driven diaphragm pump
D370488, Aug 28 1995 Ingersoll-Rand Company Diaphragm pump
D382277, Feb 12 1996 Graco Inc. Double diaphragm pump
D388796, Dec 04 1996 Ingersoll-Rand Company Diaphragm pump
D388797, Dec 04 1996 Ingersoll-Rand Company Diaphragm pump
D400210, May 29 1997 Warren Rupp, Inc. Diaphragm pump
D498766, Aug 07 2003 SMC Corporation Diaphragm pump
D499116, Aug 07 2003 SMC Corporation Diaphragm pump
D746872, Jan 28 2015 FINISH THOMPSON INC Chamber for a diaphragm pump
D746873, Jan 28 2015 Finish Thompson Inc.; FINISH THOMPSON INC Chamber for a diaphragm pump
D746874, Jan 28 2015 Finish Thompson Inc.; FINISH THOMPSON INC Chamber for a diaphragm pump
D747362, Jan 28 2015 FINISH THOMPSON INC Chamber for a diaphragm pump
D781924, May 18 2015 YAMADA CORPORATION Diaphragm pump
D817360, Jan 23 2017 PSG CALIFORNIA LLC; PSG WORLDWIDE, INC Double diaphragm pump
RE38239, Feb 16 1993 WILDEN PUMP AND ENGINEERING LLC Air driven diaphragm pump
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
3162133,
3791768,
4247264, Apr 13 1979 Wilden Pump & Engineering Co. Air driven diaphragm pump
190052,
194379,
240272,
D268413, Dec 09 1980 Double diaphragm pump
34514,
ASSIGNMENT RECORDS    Assignment records on the USPTO
//
Executed onAssignorAssigneeConveyanceFrameReelDoc
May 24 1982WILDEN, JAMES K WILDEN PUMP & ENGINEERING CO ASSIGNMENT OF ASSIGNORS INTEREST 0040110265 pdf
Jun 01 1982Wilden Pump & Engineering Co.(assignment on the face of the patent)
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