Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830589 | Variable stroke positive displacement pump | — | 1989-05-16 |
| 4732175 | Surge suppressor | — | 1988-03-22 |
| 4721444 | Fluid pump incorporating pulsation dampener surrounding its shaft | — | 1988-01-26 |
| 4712584 | Surge suppressor | — | 1987-12-15 |
| 4568318 | Belt tensioning apparatus for belt/pulley drive system | Carl Johnson | 1986-02-04 |
| 4498372 | Pump with ring retained floating wrist pins and connecting rods | — | 1985-02-12 |
| 4381179 | Pumps with floating wrist pins | — | 1983-04-26 |
| D264086 | Triplex piston pump | — | 1982-04-27 |
| D263843 | Piston pump | — | 1982-04-13 |
| 4292990 | High pressure unloader valve | — | 1981-10-06 |
| 4284392 | Roller pump with radial members | — | 1981-08-18 |
| 4242063 | High pressure multi-cylinder pump | — | 1980-12-30 |
| 4242062 | Dual piston pump with pressure seal lubrication feature | — | 1980-12-30 |
| 4199305 | Hydraulic Gerotor motor with balancing grooves and seal pressure relief | — | 1980-04-22 |
| 4185938 | Locking collar for power take-off mounted shafts | — | 1980-01-29 |
| 4184817 | High pressure multi-cylinder pump | — | 1980-01-22 |