Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6276901 | Combination sight glass and sump oil level sensor for a hermetic compressor | Kent B. Herrick | 2001-08-21 |
| 6170241 | Microprocessor controlled motor controller with current limiting protection | John Shibilski, Joseph L. Pfaff | 2001-01-09 |
| 6020702 | Single phase compressor thermostat with start relay and motor protection | — | 2000-02-01 |
| 5784232 | Multiple winding sensing control and protection circuit for electric motors | — | 1998-07-21 |
| 5537834 | Inductively activated control and protection circuit for refrigeration systems | — | 1996-07-23 |
| 5463874 | Inductively activated control and protection circuit for refrigeration systems | — | 1995-11-07 |
| 5262704 | Protection circuit in inverter for refrigerators | — | 1993-11-16 |
| 5238369 | Liquid level control with capacitive sensors | — | 1993-08-24 |
| 5231848 | Refrigerator cold control | — | 1993-08-03 |
| 5145323 | Liquid level control with capacitive sensors | — | 1992-09-08 |
| 4654551 | Permanent magnet excited alternator compressor with brushless DC control | — | 1987-03-31 |
| 4642031 | Alternator-compressor construction | — | 1987-02-10 |
| RE31947 | Electro-mechanical device | — | 1985-07-16 |
| 4217526 | D.C. Motor speed controller | — | 1980-08-12 |
| 4203710 | Unified pump and generator arrangement | — | 1980-05-20 |