| Patent Number |
Title Of Patent |
Date Issued |
| D435855 |
Diaphragm pump housing |
January 2, 2001 |
|
| D400210 |
Diaphragm pump |
October 27, 1998 |
|
| 6829542 |
Pump and method for facilitating maintenance and adjusting operation of said pump |
December 7, 2004 |
| A method of facilitating the maintenance of a pump and for facilitating changes in the operation of a pump is provided. The method includes the steps of providing a pump including wear parts, a processor and a memory; sensing at least one operating condition of the pump indicative of the |
| 6241487 |
Fluid powered diaphragm pump |
June 5, 2001 |
| A fluid powered diaphragm pump is provided which includes three means for supplementing the pilot valve signal to the main fluid valve spool. The means include a cross porting of the main fluid valve spool, or engineered orifices that communicate pressurized air being delivered to one of |
| 6129525 |
Speed control for fluid powered diaphragm pumps |
October 10, 2000 |
| A governor for fluid powered diaphragm pumps is shown and described. At least one pump member or oscillatory member moves in response to the varying pressures in the inner chambers of the diaphragm pump. Thus, each pump member or oscillatory member moves at the frequency at which the pum |
| 6036445 |
Electric shifting mechanism/interface for fluid power diaphragm pumps |
March 14, 2000 |
| An electric shifting mechanism for a fluid-powered diaphragm pump is provided. The shifting mechanism includes a controller programmed to switch the pump at timed intervals, a solenoid valve and an end of stroke valve. The end of stroke valve translates the pneumatic end of stroke si |
| 6004105 |
Diaphragm pump with adjustable stroke length |
December 21, 1999 |
| A fluid powered diaphragm pump with an adjustable stroke is provided. The stroke of the pump is adjusted by providing an inner diaphragm plate assembly that includes a retractable piston. The piston is biased towards the inner plate by one or more standoffs that attach the piston to the |
| 5996627 |
Adjustable fluid valve for diaphragm pumps |
December 7, 1999 |
| A fluid diaphragm pump is provided with a means for controlling the flowrate of fluid to the main fluid valve. Specifically, in the main fluid valve, a sleeve accommodates a sliding spool. The sleeve may include control orifices disposed at either end of the sleeve for controlling the |
| 5950523 |
Composite diaphragm having two layers wherein the first layer is chemically resistant and of red |
September 14, 1999 |
| A composite flexible diaphragm for a diaphragm pump. The diaphragm has a diaphragm body with an outer perimeter, a center axis, and first and second exterior surfaces. The body has a perimeter flange portion extending around the body adjacent the outer perimeter. The body also has a |
| 5851109 |
Spacer and shim assembly for fluid powered diaphragm pumps |
December 22, 1998 |
| A three-piece combination spacer and shim assembly is provided for an air operated diaphragm pump. The spacer/shim assembly is disposed between adjacent parts of the manifold assemblies of the pumps to alleviate dimensional stack up and misalignment problems associated with the manif |
| 5819792 |
Check ball valve seat |
October 13, 1998 |
| A check ball valve seat assembly for a diaphragm pump is provided that includes an annular carrier plate which accommodates an annular seat member. The assembly is sandwiched between two components of a diaphragm pump, such as a component for providing a retainer for the ball component |
| 5724881 |
Diaphragm assembly for fluid powered diaphragm pumps |
March 10, 1998 |
| A two-piece diaphragm assembly for a fluid powered diaphragm pump is provided. The diaphragm assembly includes a key as part of a overlay diaphragm extending towards a recess in a backup diaphragm, for properly aligning the overlay diaphragm and the backup diaphragm during installati |
| 5375625 |
Valve body assembly with detent and locking mechanism |
December 27, 1994 |
| A valve assembly including a valve housing with a spool valve mounted for reciprocation within the valve housing, with a detent mechanism disposed on the spool valve and the valve housing for selectively locking the spool valve against reciprocal movement, and for providing an externally |
| 5332372 |
Modular double-diaphragm pump |
July 26, 1994 |
| The fluid-operated, double diaphragm pump of the invention includes a central housing block having opposed side faces, and a pair of diaphragm housing end sections secured to opposite sides of the central housing block. The diaphragm housings define a pair of enclosures having a common |
| 5257914 |
Electronic control interface for fluid powered diaphragm pump |
November 2, 1993 |
| A pump control interface for use in a diaphragm pump including at least one diaphragm adapted to move between a suction stroke and a discharge stroke during operation of the pump. A diaphragm follower is connected for movement with the diaphragm during operation of the pump. A sensor |
| 5165869 |
Diaphragm pump |
November 24, 1992 |
| A piston-driven fluid pump including a drive chamber containing drive fluid and a drive diaphragm forming a wall of the drive chamber. The pump also includes a spill containment chamber disposed adjacent the drive chamber and containing drive fluid, with a pumping diaphragm forming a wal |
