Patents for F25B 49 - Arrangement or mounting of control or safety devices (13,159)
08/1978
08/08/1978US4105064 Two stage compressor heating
08/01/1978US4103506 Method and arrangement for controlling the operation of a cooling system in an automotive vehicle
07/1978
07/25/1978US4102389 Heat pump control system
07/25/1978US4102150 Control system for refrigeration apparatus
07/25/1978US4102149 Variable capacity multiple compressor refrigeration system
06/1978
06/27/1978US4096708 Compressor refrigeration plant
06/27/1978US4096706 Free condensing liquid retro-pumping refrigerator system and method
06/13/1978US4094166 Air conditioning control system
06/06/1978US4093899 Circuit and method for controlling speed of an alternating current motor
05/1978
05/23/1978US4090372 Fuel conservation controller for capacity controlled refrigeration apparatus
05/23/1978US4090371 Monitor and control for refrigeration system
05/02/1978USRE29621 Variable capacity multiple compressor refrigeration system
04/1978
04/18/1978US4084406 Chiller controls
04/18/1978US4084405 Refrigerating system
04/18/1978US4084388 Refrigeration control system for optimum demand operation
04/11/1978US4083197 Air conditioner control system
04/11/1978US4083196 Compressor refrigeration plant
04/04/1978US4081971 Air cooled centrifugal refrigeration machine with provision to prevent evaporator freezing
02/1978
02/28/1978US4075865 Apparatus for controlling condenser pressure in a refrigeration system
01/1978
01/17/1978US4068494 Power saving capacity control for air cooled condensers
12/1977
12/20/1977US4063431 Compact cooling system for automotive vehicles
12/06/1977US4060997 Water chiller control
10/1977
10/11/1977US4053725 Pressure switch for outdoor refrigeration systems
09/1977
09/27/1977US4050263 Arrangement for controlling the operation of a cooling system in an automotive vehicle
09/06/1977US4046532 Refrigeration load shedding control device
09/06/1977US4045973 Air conditioner control
08/1977
08/16/1977US4041725 Control system for refrigeration unit
07/1977
07/26/1977US4038061 Air conditioner control
07/12/1977US4034570 Air conditioner control
07/05/1977US4033738 Heat pump system with multi-stage centrifugal compressors
04/1977
04/12/1977US4016657 Heat pump freeze drying system
03/1977
03/29/1977US4015182 Refrigeration system and control therefor
03/29/1977US4014182 Method of improving refrigerating capacity and coefficient of performance in a refrigerating system, and a refrigerating system for carrying out said method
02/1977
02/15/1977US4007605 Refrigeration system and control circuit
02/08/1977US4006603 Air conditioning system for a railway vehicle
02/01/1977US4005585 Control arrangement fail-safe timing circuit
01/1977
01/25/1977US4004431 Control for cooling unit
01/18/1977US4003729 Air conditioning system having improved dehumidification capabilities
12/1976
12/28/1976US4000450 Lubricant pressure responsive control circuit
11/1976
11/30/1976US3994142 Heat reclaim for refrigeration systems
10/1976
10/19/1976US3986664 Heating installation comprising a heat pump and a fuel-fired boiler with a radiator circuit
08/1976
08/31/1976US3978382 Control apparatus for two-speed, single phase compressor
08/31/1976US3977650 Switching device
08/10/1976US3973938 Method for temperature control of refrigerating machines operating with thermoelectric modules
07/1976
07/20/1976US3970864 Control arrangement fail-safe timing circuit
07/06/1976US3967644 Compressor control
06/1976
06/29/1976US3967172 Control circuit, refrigeration system, and method of controlling speed of an alternating current motor
06/29/1976US3965692 Refrigeration control circuit
06/01/1976US3959980 Refrigerant moisture detection system
06/01/1976US3959979 Dual voltage forced air heat exchanger
05/1976
05/25/1976US3958429 Air-cooled condenser pressure control at low ambient temperatures
04/1976
04/27/1976US3952533 Multiple valve refrigeration system
04/20/1976US3950961 Cooling system for a two-temperature refrigerator
03/1976
03/30/1976US3946574 Control circuit for refrigeration compressor motor
03/30/1976US3946573 Electrical diagnostic system for refrigeration apparatus
03/09/1976US3942912 Method for controlling the operation of two-speed, refrigerant motor compressors
02/1976
02/24/1976US3939668 Balanced liquid level head pressure control systems
02/17/1976US3938349 Refrigerating apparatus with superheat control
01/1976
01/27/1976US3934425 Flooded refrigerant condenser head pressure control