Issued Patents All Time
Showing 1–25 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5481874 | Exhaust pressurizing circuit including flow amplification | — | 1996-01-09 |
| 5447093 | Flow force compensation | — | 1995-09-05 |
| 5222870 | Fluid system having dual output controls | — | 1993-06-29 |
| 5205124 | Piston motor with starting charge device | — | 1993-04-27 |
| 5186612 | Variable pressure inlet system for hydraulic pumps | — | 1993-02-16 |
| 5152142 | Negative load control and energy utilizing system | — | 1992-10-06 |
| 5044256 | Exhaust pressurizing control for a fluid system | — | 1991-09-03 |
| 4799420 | Load responsive control system adapted to use of negative load pressure in operation of system controls | — | 1989-01-24 |
| 4798126 | Load responsive system using load responsive pump control of a bypass type | — | 1989-01-17 |
| 4793238 | Control signal blocking direction control valve in load-sensing circuit | — | 1988-12-27 |
| 4747335 | Load sensing circuit of load compensated direction control valve | — | 1988-05-31 |
| 4741248 | Load responsive system having synchronizing systems between positive and negative load compensation | — | 1988-05-03 |
| 4699166 | Hydraulic fuse valve assembly | Harold Gold | 1987-10-13 |
| 4694731 | Load compensated valve | — | 1987-09-22 |
| 4688470 | Compensated fluid flow control valve | — | 1987-08-25 |
| 4687572 | Water-oil separating system including centrifugal type separator and flow controls therefor | — | 1987-08-18 |
| 4679492 | Compensated fluid flow control valve | — | 1987-07-14 |
| 4667695 | Pressure regulating and on-off valve | Harold Gold | 1987-05-26 |
| 4665801 | Compensated fluid flow control valve | — | 1987-05-19 |
| 4610194 | Load sensing circuit of load responsive direction control valve | — | 1986-09-09 |
| 4591433 | Automatic controls of water-oil separating system for use with centrifugal type separator | — | 1986-05-27 |
| 4574686 | Digital proportional spool position control of compensated valves | — | 1986-03-11 |
| 4534860 | Water-oil separating system for use with centrifugal type separator | — | 1985-08-13 |
| 4523431 | Load responsive system | — | 1985-06-18 |
| 4488474 | Fully compensated fluid control valve | — | 1984-12-18 |