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Class 62/155 - Including time or program actuator


Subclass of Class 62 - Refrigeration
Definition: Apparatus with a timing or programming device.
No. of patents: 250
Last issue date: 08/09/2011


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NumberTitleIssue Date
7992396Method of analysing a refrigeration system and a method of controlling a refrigeration system
A method of analyzing a refrigeration system (1) comprising at least one compressor (4), at least one condenser (5) and at least two refrigeration entities (2), each comprising at least one evaporator (9). Based on information rela...
08/09/2011
7942014Reduced energy refrigerator defrost method and apparatus
A method for defrosting an evaporator of a refrigeration sealed system, the system including at least one refrigeration compartment and a controller operatively coupled to a compressor, an evaporator, an evaporator fan and a condenser fan, wherein the method include...
05/17/2011
7937959Control system, integrated control apparatus, and control program
An object of the present invention is to provide a control system, an integrated control apparatus, and a control program that are capable of well maintaining freshness and quality of food articles, by reducing time for performing a recovery operation following a fr...
05/10/2011
7921660System and method for controlling defrost cycles of a refrigeration device
Methods, systems and computer readable code for controlling a defrost cycle of a refrigeration device are disclosed. According to some embodiments, a defrost command is issued to a defrost heater at a time determined at least in part by a total wasted energy paramet...
04/12/2011
7913500Control method for a refrigerator
A refrigerator control method is provided that may efficiently perform a defrosting operation. The method includes performing a normal operation of a refrigerating storage room and a normal operation of a freezing storage room selectively or simultaneously, setting ...
03/29/2011
7856836Refrigerating air conditioning system
A refrigerating air conditioning system is provided with a refrigerant circuit which includes a compressor 3, an indoor heat exchanger 6, a first pressure reducing device 10, an outdoor heat exchanger 11, and a switching device 4 f...
12/28/2010
7730729Refrigerating machine
A compressor, a radiator, an expander, and an evaporator are connected in series to define a refrigerating cycle. A bypass circuit that bypasses the expander, an on-off valve disposed in the bypass circuit, and a controller C1 for controlling an opening of th...
06/08/2010
7707842Defrost mode for HVAC heat pump systems
A heat pump, and in particular a heat pump for heating a hot water supply is provided with an improved defrost mode. The defrost mode is actuated to remove frost from an outdoor evaporator that may accumulate during cold weather operation. An algorithm for operation...
05/04/2010
7665317Method for controlling a refrigeration appliance
A method for controlling the defrost of an evaporator in a refrigeration appliance provided with a compressor and in which a temperature sensor (TP) is used for detecting the temperature inside a cell of the appliance, comprises the steps of estimating the temperatu...
02/23/2010
7454918Refrigeration and defrost control system
A system and method for refrigeration timer control having an energy efficient defrost cycle are provided. The system and method provide a delay time after the refrigeration cycle and prior to the defrost cycle. During this delay period the evaporator fan may run. T...
11/25/2008
7320226Freezer with defrost function and method for operating the freezer
A freezer includes a refrigeration surface that can be frozen, such as an evaporator surface, a heating device for heating the refrigeration surface, and a control circuit for controlling the operation of the heating device in accordance with a timer. The control ci...
01/22/2008
7290402Expansion valve control system and method and refrigeration unit employing the same
An expansion valve control system, a method of controlling an expansion valve and a refrigeration unit incorporating the same. In one embodiment, the expansion valve control system includes (1) a superheat error circuit configured to derive a superheat error for a f...
11/06/2007
7275376Defrost system for a refrigeration device
A defrost system for a temperature controlled storage unit includes an enclosure providing a space for storage of products. A refrigeration system has a supply line and a return line coupled to a cooling element to circulate a refrigerant through the cooling element...
10/02/2007
7263849Refrigerating system for refrigerator
A refrigerating system for a refrigerator is disclosed. The refrigerator includes a compressor that compresses refrigerant, a condenser connected to the compressor that condenses compressed refrigerant, an expansion valve connected to the condenser that expands cond...
09/04/2007
7260957Damper for refrigeration apparatus
A damper for controlling air flow into at least one refrigeration compartment of a refrigerator is provided. The damper includes a damper, and a first damper door and a second damper door movably mounted on the frame. The damper frame defines a first gate, a second ...
08/28/2007
7259479Transformerless power supply, dual positive or dual negative supplies
The positive half-cycle for an ac input signal is applied to a wave rectifier (20, 22), a filter (41) and a voltage regulator (30, 31) for generating a dc output signal. The ac input signal is also applied to a transistor (50) in either t...
08/21/2007
7251947Refrigerant system with suction line restrictor for capacity correction
A fixed restriction is placed in a suction line leading to a compressor. The size of the restriction is selected to achieve a desired capacity reduction (correction) for the refrigerant system compressor. By selectively restricting the flow of refrigerant through th...
08/07/2007
7240501System for preventing condensation on refrigerator doors and frames
The present invention is a device for reducing energy consumption by heaters on refrigerator doors and frames. A control unit is set so that the heater is on prior to the formation of condensation. The preferred embodiment provides for preset heater stop and start t...
07/10/2007
7237402Refrigerator and method
Refrigerator comprising at least one compartment (2, 21) to be cooled and a refrigeration apparatus with an evaporator, which evaporator is arranged in heat conducting contact with a heat exchanger (6, 24, 50). The refrigerator further comprises an ess...
07/03/2007
7234311Prevention of compressor unpowered reverse rotation in heat pump units
A heat pump is provided with a method and control for eliminating compressor un-powered reverse rotation at shutdown. In particular, the position of the four-way reversing valve is changed and the heat pump is moved to the opposite mode of operation as compared to t...
06/26/2007
7231782Refrigerator
A refrigerator designed to prevent inner surfaces of storage compartments thereof from being damaged during a manufacturing process. The refrigerator includes a cabinet defining an external appearance of the refrigerator having refrigerator and freezer compartments ...
06/19/2007
7228692Defrost mode for HVAC heat pump systems
A heat pump, and in particular a heat pump for heating a hot water supply is provided with an improved defrost mode. The defrost mode is actuated to remove frost from an outdoor evaporator that may accumulate during cold weather operation. An algorithm for operation...
06/12/2007
7216493Refrigerator methods and apparatus
A refrigerator includes a plurality of walls forming a refrigeration compartment, an evaporator is positioned proximate at least one of the walls, a thermal insulator is positioned proximate the evaporator, and an airflow duct is positioned proximate the thermal ins...
05/15/2007
7201008Vapor compression system performance enhancement and discharge temperature reduction in the unloaded mode of operation
A vapor compression system includes a main vapor compression circuit having a compressor, a condenser, an expansion device and an evaporator serially connected by main refrigerant lines, the compressor having a suction port, a main discharge port and an intermediate...
04/10/2007
7178346Constant temperature refrigeration system for extensive temperature range application and control method thereof
A constant temperature refrigeration system for extensive temperature range application comprising a refrigerator, a low-temperature heat exchanger, a medium-temperature heat exchanger, a high-temperature heat exchanger, a pump, a first solenoid valve, a second sole...
02/20/2007
7174729Automatic defrost controller including air damper cleaning
A damper cleaning apparatus for a two compartment refrigerator having a damper for controlling airflow between compartments. The damper cleaning apparatus includes a damper drive mechanism for opening and closing the damper. A controller for controlling the damper d...
02/13/2007
7155926Refrigerator having cross flow fan
A refrigerator includes: a refrigerator body having a cooling chamber for storing food items and a mechanic chamber provided at one side thereof; a heat exchanger disposed in the mechanic chamber and performing heat exchanging while a refrigerant passes therethrough...
01/02/2007
7158863Programmable controller for condition air curtains
A programmable electronic controller that provides multiple command and control instruction for an air curtain being integrated therewith. The controller includes operational controls for fan speed, time adjustment duration including time delay, start time, stop tim...
01/02/2007
7137266Time division multi-cycle type cooling apparatus and method for controlling the same
The present invention relates to a cooling apparatus including a compressor, a condenser, a first expanding unit, a second expanding unit, a third expanding unit, a first evaporator, and a second evaporator; a first refrigerant circuit containing refrigerant dischar...
11/21/2006
7131284Automatic defrost controller including air damper control
A damper apparatus for controlling airflow between compartments in a two compartment refrigerator having a door includes a controller for controlling opening and closing of a damper; and a door sensor connected to the controller for detecting when the door is open. ...
11/07/2006
7110832Energy management system for an appliance
An energy management system for an appliance comprising an interface to receive a schedule having an off-peak time segment and an on-peak time segment; a control to determine an operation to be performed by the appliance; a mode selecting device to select between an...
09/19/2006
7104083Refrigeration system configuration for air defrost and method
A refrigeration system of the type having a compression stage, a condensation stage, an expansion stage and an evaporation stage, comprising a first evaporator group in the evaporation stage. The first evaporator group has two or more evaporators. A first valve is p...
09/12/2006
7100390Condenser-evaporator shell configuration for a refrigerating device
An evaporator shell is mounted on the half-shell of a condenser housing. The evaporator shell is retained with the aid of retaining claws that engage from the rear with catching flanks formed on the upper half-shell. ...
09/05/2006
7089752Refrigerator and defrosting method thereof
A refrigerator and a defrosting method thereof which are capable of achieving an appropriate defrosting operation even when a part of constituent elements included in a defrosting system fails. The defrosting method includes the steps of determining whether or not a...
08/15/2006
7082352Temperature control apparatus for a heater using an encoder switch and method thereof
Disclosed is a temperature control apparatus for a heater using an encoder switch and method thereof that controls an indoor temperature by driving a burner in accordance with a change of an indoor temperature and ventilating heated air indoors. The temperature cont...
07/25/2006
7073344Electrically controlled defrost and expansion valve apparatus
A cooling system that has an electrical controller that controls an electric expansion valve and the defrost cycle using a reversing valve. The need for heater circuit to achieve defrost is eliminated. The system permits the defrosting the evaporator system in less ...
07/11/2006
7032395Transport temperature control unit and methods of defrosting an evaporator coil of the same
A transport temperature control unit and methods of defrosting an evaporator coil of a transport temperature control unit. The transport temperature control unit includes an evaporator coil, an ambient air temperature sensor for sensing an ambient air temperature, a...
04/25/2006
7023101Air cooling generator
A generator includes a housing, an engine, a first main impeller rotatably mounted in the engine, a first secondary impeller rotatably mounted in the housing and located outside of the engine, a generating body, a second main impeller rotatably mounted in the genera...
04/04/2006
7013664Refrigerant cycling device
A refrigerant cycling device is provided, wherein a compressor comprises an electric motor element, a first and a second rotary compression elements in a sealed container. The first and the second rotary compression elements are driven by the electric motor element....
03/21/2006
7010925Method of controlling a carbon dioxide heat pump water heating system
A method of detecting and diagnosing operating conditions for a heat pump water heating system includes the steps of monitoring system operating conditions and comparing actual operating conditions to predicted operating conditions. The predicted operating condition...
03/14/2006
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