Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7025578 | Pump having air valve with integral pilot | — | 2006-04-11 |
| 6571680 | Pneumatic shift reciprocating pneumatic motor | — | 2003-06-03 |
| 5951259 | Reciprocating pump with improved primer element and method | Leo J. Schlachter | 1999-09-14 |
| 5731556 | Muffler for pneumatic device | Joseph W. Sullivan, Gerald M. Distel, Roger D. Wieland | 1998-03-24 |
| 5647737 | Reciprocating pump with simplified seal replacement | Roger D. Wieland, Mark D. Jermeay | 1997-07-15 |
| D380217 | Pneumatic motor | Mark D. Jermeay, Gerald E. Smith, Roger D. Wieland | 1997-06-24 |
| 5586480 | Pneumatic motor | — | 1996-12-24 |
| 5573146 | Adjustable pneumatic lift device for dual flow valve | — | 1996-11-12 |
| 5551847 | Lost motion pilot valve for diaphragm pump | Robert J. Knecht | 1996-09-03 |
| 5527160 | Mechanical shift, pneumatic assist pilot valve | Nicholas Kozumplik, Jr. | 1996-06-18 |
| 5334003 | Air valving mechanism, in combination with a double diaphragm pump subassembly | Gordon M. Schroeder | 1994-08-02 |
| 4936753 | Diaphragm pump with interchangeable valves and manifolds | Nicholas Kozumplik, Jr. | 1990-06-26 |
| 4895494 | Interchangeable manifolds for diaphragm pumps | — | 1990-01-23 |
| 4854832 | Mechanical shift, pneumatic assist pilot valve for diaphragm pump | — | 1989-08-08 |