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Class Information
Number: 417/395
Name: Pumps > Motor driven > Fluid motor > Common pumping and motor working member > Collapsible common member > Diaphragm
Description: Apparatus in which the deformable member comprises a relatively thin membrane like element having a peripheral edge portion, said member being adapted to be associated with a surrounding or encompassing tubular rigid chamber forming means and extending transversely thereof to form a separating wall for dividing said chamber into respective motor and pump chambers, the outer peripheral edge of said membrane being in sealing relationship with the encompassing wall of said tubular structure.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7600985 |
Pump assembly, suppression apparatus for use with a pump, and method of controlling a pump assembly |
Oct. 13, 2009 |
| 7566205 |
Reciprocating pump and check valve |
Jul. 28, 2009 |
| 7527483 |
Expansible chamber pneumatic system |
May. 5, 2009 |
| 7517199 |
Control system for an air operated diaphragm pump |
Apr. 14, 2009 |
| 7497670 |
Dual diaphragm transfer pump |
Mar. 3, 2009 |
| 7431573 |
Device for generating a reducing agent/air mixture |
Oct. 7, 2008 |
| 7425120 |
Diaphragm position control for hydraulically driven pumps |
Sep. 16, 2008 |
| 7399168 |
Air driven diaphragm pump |
Jul. 15, 2008 |
| 7367785 |
Reduced icing valves and gas-driven motor and reciprocating pump incorporating same |
May. 6, 2008 |
| 7323961 |
Electromagnetic machine with a deformable membrane |
Jan. 29, 2008 |
| 7287964 |
Method and system for pumping powder, and powder coating apparatus |
Oct. 30, 2007 |
| 7284966 |
Micro-pump |
Oct. 23, 2007 |
| 7252148 |
Plunger actuated pumping system |
Aug. 7, 2007 |
| 7232524 |
Methods and apparatus for increasing and extending oil production from underground formations nearly depleted of natural gas drive |
Jun. 19, 2007 |
| 7168928 |
Air driven hydraulic pump |
Jan. 30, 2007 |
| 7134489 |
System for controlling the discharge of drilling fluid |
Nov. 14, 2006 |
| 7125229 |
Reciprocating air distribution system |
Oct. 24, 2006 |
| 7097569 |
Restorable sand or pellet pile device |
Aug. 29, 2006 |
| 7090474 |
Diaphragm pump with overfill limiter |
Aug. 15, 2006 |
| 7063516 |
One-way valve |
Jun. 20, 2006 |
| 7063517 |
Valve apparatus and pneumatically driven diaphragm pump incorporating same |
Jun. 20, 2006 |
| 7029245 |
Blood pumping unit, with a coplanar disk inlet valve and an annular outlet valve |
Apr. 18, 2006 |
| 7025578 |
Pump having air valve with integral pilot |
Apr. 11, 2006 |
| 7004727 |
Blood component processing systems and methods using fluid-actuated pumping elements that are integrity tested prior to use |
Feb. 28, 2006 |
| 7004731 |
Diaphragm pump having a gas venting surface |
Feb. 28, 2006 |
| 6973922 |
Fuel supply control system for engine |
Dec. 13, 2005 |
| 6971859 |
Diaphragm unit |
Dec. 6, 2005 |
| 6962487 |
Fluid driven pump with improved exhaust port arrangement |
Nov. 8, 2005 |
| 6957952 |
Fiber optic system for detecting pump cycles |
Oct. 25, 2005 |
| 6948918 |
Membrane pump with stretchable pump membrane |
Sep. 27, 2005 |
| 6905314 |
Pump having flexible liner and compounding apparatus having such a pump |
Jun. 14, 2005 |
| 6901960 |
Double diaphragm pump including spool valve air motor |
Jun. 7, 2005 |
| 6899530 |
Diaphragm pump with a transfer chamber vent with a longitudinal notch on the piston cylinder |
May. 31, 2005 |
| 6884045 |
Hydraulically powered diaphragm pump with pretensioned diaphragm |
Apr. 26, 2005 |
| 6874997 |
Pump system using a control fluid to drive a switching valve mechanism for an actuating fluid |
Apr. 5, 2005 |
| 6846166 |
Reciprocating diaphragm pump with degassing valves |
Jan. 25, 2005 |
| 6846161 |
Blood component processing systems and methods using fluid-actuated pumping elements that are integrity tested prior to use |
Jan. 25, 2005 |
| 6846587 |
Diaphragm pump and anode stream recirculation system using such pump for a fuel cell |
Jan. 25, 2005 |
| 6843643 |
Valve mounting arrangement in a diaphragm pump |
Jan. 18, 2005 |
| 6790014 |
Fluid cooled diaphragms for diaphragm compressors |
Sep. 14, 2004 |
| 6767189 |
Method for the control and regulation of the oil pressure-gas pressure relationship of diaphragm compressors |
Jul. 27, 2004 |
| 6752599 |
Apparatus for photoresist delivery |
Jun. 22, 2004 |
| 6749403 |
Methods for controlling a pump's flow rate by pulsed discharge |
Jun. 15, 2004 |
| 6745754 |
Engine having oil fill tube with integrated fuel pump |
Jun. 8, 2004 |
| 6742997 |
Diaphragm-type pumping apparatus |
Jun. 1, 2004 |
| 6699021 |
Passively pumped liquid feed fuel cell system |
Mar. 2, 2004 |
| 6695593 |
Fiber optics systems for high purity pump diagnostics |
Feb. 24, 2004 |
| 6685443 |
Pneumatic reciprocating pump |
Feb. 3, 2004 |
| 6672841 |
Pumping and metering device |
Jan. 6, 2004 |
| 6644941 |
Apparatus and method for reducing ice formation in gas-driven motors |
Nov. 11, 2003 |
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