| 5992410 |
High-efficiency furnace for mobile homes |
William F. Raleigh, Raymond P. Hampton, Donita M. Meyer, Kyu S. Hwang |
1999-11-30 |
| 5619864 |
Compact heat pump |
— |
1997-04-15 |
| 5377503 |
Convertible top single package heat pump unit |
Lawrence J. Boyce |
1995-01-03 |
| 5172564 |
Integrated heat pump with restricted refrigerant feed |
— |
1992-12-22 |
| 5170638 |
Variable area refrigerant expansion device |
Kenneth Koenig |
1992-12-15 |
| 5140827 |
Automatic refrigerant charge variation means |
— |
1992-08-25 |
| 5002089 |
Variable area refrigerant expansion device for heating mode of a heat pump |
Alan S. Drucker |
1991-03-26 |
| 4900237 |
Rolling rotor motor balancing means |
— |
1990-02-13 |
| 4727727 |
Integrated heat pump system |
— |
1988-03-01 |
| 4474227 |
Gas valve lockout during compressor operation in an air conditioning system |
— |
1984-10-02 |
| 4470266 |
Timer speedup for servicing an air conditioning unit with an electronic control |
Mario F. Briccetti |
1984-09-11 |
| 4444017 |
Method and apparatus for controlling the operation of a compressor crankcase heater |
Mario F. Briccetti |
1984-04-24 |
| 4429552 |
Refrigerant expansion device |
— |
1984-02-07 |
| 4426850 |
Heat pump control having an electronic control module with a bypass system |
— |
1984-01-24 |
| 4227721 |
Variable size coupling |
Edward F. Russ |
1980-10-14 |