Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5079929 | Multi-stage refrigeration apparatus and method | — | 1992-01-14 |
| 5067326 | Method and apparatus for controlling capacity of a multiple-stage cooling system | — | 1991-11-26 |
| 5035119 | Apparatus for monitoring solenoid expansion valve flow rates | — | 1991-07-30 |
| 4951475 | Method and apparatus for controlling capacity of a multiple-stage cooling system | — | 1990-08-28 |
| 4831832 | Method and apparatus for controlling capacity of multiple compressors refrigeration system | — | 1989-05-23 |
| 4825662 | Temperature responsive compressor pressure control apparatus and method | — | 1989-05-02 |
| 4735060 | Pulse controlled solenoid valve with food detection | — | 1988-04-05 |
| 4697431 | Refrigeration system having periodic flush cycles | — | 1987-10-06 |
| 4686835 | Pulse controlled solenoid valve with low ambient start-up means | — | 1987-08-18 |
| 4679404 | Temperature responsive compressor pressure control apparatus and method | — | 1987-07-14 |
| 4651535 | Pulse controlled solenoid valve | — | 1987-03-24 |
| 4628700 | Temperature optimizer control apparatus and method | — | 1986-12-16 |
| 4612776 | Method and apparatus for controlling capacity of a multiple-stage cooling system | — | 1986-09-23 |
| 4593533 | Method and apparatus for detecting and controlling the formation of ice or frost | — | 1986-06-10 |
| 4578959 | Method and apparatus for detecting and controlling the formation of ice or frost | — | 1986-04-01 |
| 4537038 | Method and apparatus for controlling pressure in a single compressor refrigeration system | Roger Ansted | 1985-08-27 |
| 4535602 | Shift logic control apparatus for unequal capacity compressors in a refrigeration system | Roger Ansted | 1985-08-20 |
| 4531376 | Refrigerator defrost control | — | 1985-07-30 |
| 4183223 | Method and apparatus for signal transmission in refrigeration units | — | 1980-01-15 |