Patents by Inventor Hans Erik Fogh
Hans Erik Fogh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10782056Abstract: The invention relates to a method for operating a variable-speed refrigerant compressor (2) for cooling a cooling volume (4) of a refrigeration system (1) that does not have its own control unit, wherein the refrigeration system (1) comprises at least one thermostat (3) for directly or indirectly monitoring a temperature state of the cooling volume (4) and wherein the rotational speed behavior of the refrigerant compressor (2) during a cooling cycle is controlled by means of a preset closed-loop rotational speed control saved in an electronic control device (6) of the refrigerant compressor (2), based on at least one predefined parameter, in that the at least one predefined parameter is monitored with respect to an over- and/or undershooting by a current parameter of a current cooling cycle, and relates to an electronic control device (6) for controlling the cyclical operation of a variable-speed refrigerant compressor.Type: GrantFiled: December 1, 2017Date of Patent: September 22, 2020Assignee: SECOP GMBHInventors: Ulrich Gries, Juergen Ewald Glaeser, Allan Haue Slot, Hans-Erik Fogh
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Publication number: 20190310004Abstract: The invention relates to a method for operating a rotational-speed-variable refrigerant compressor (2) for cooling a cooling volume (4) of a refrigeration system (1), which refrigeration system does not have its own control unit, wherein the refrigeration system (1) comprises at least one thermostat (3) for directly or indirectly monitoring a temperature state of the cooling volume (4) and wherein the rotational-speed behavior of the refrigerant compressor (2) during a cooling cycle is controlled by means of a specification rotational-speed control stored in an electronic control device (6) of the refrigerant compressor (2).Type: ApplicationFiled: December 1, 2017Publication date: October 10, 2019Inventors: Ulrich Gries, Jürgen Ewald Gläser, Allan Haue Slot, Hans-Erik Fogh
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Publication number: 20190162459Abstract: The invention relates to a method for operating a variable-speed refrigerant compressor (2) for cooling a cooling volume (4) of a refrigeration system (1) that does not have its own control unit, wherein the refrigeration system (1) comprises at least one thermostat (3) for directly or indirectly monitoring a temperature state of the cooling volume (4) and wherein the rotational speed behavior of the refrigerant compressor (2) during a cooling cycle is controlled by means of a preset closed-loop rotational speed control saved in an electronic control device (6) of the refrigerant compressor (2), based on at least one predefined parameter, in that the at least one predefined parameter is monitored with respect to an over- and/or undershooting by a current parameter of a current cooling cycle, and relates to an electronic control device (6) for controlling the cyclical operation of a variable-speed refrigerant compressor.Type: ApplicationFiled: December 1, 2017Publication date: May 30, 2019Applicant: NIDEC GLOBAL APPLIANCE GERMANY GMBHInventors: Ulrich GRIES, Juergen Ewald GLAESER, Allan Haue SLOT, Hans-Erik FOGH
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Publication number: 20180164019Abstract: The invention relates to a method for controlling a refrigeration system by establishing a defrost period during an initial defrost period. One or more compressors of the refrigeration system are monitored to establish if the one or more compressors are running, and a parameter representative of the one or more compressors running is monitored. The monitoring establishes at least one parameter limit value representative of whether a defrost period or a non-defrost period is to be initiated. The invention also relates to a method for controlling a refrigeration system subsequent to an electrical power interruption. The invention also relates to control units for applying one or both of the methods according to the invention, and to a refrigeration system having one or more control units controlling the refrigeration system according to one or both of the methods.Type: ApplicationFiled: February 6, 2018Publication date: June 14, 2018Inventors: Gero C. Langenberg, Hans Erik Fogh
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Patent number: 9920974Abstract: The invention relates to a method for controlling a refrigeration system by establishing a defrost period during an initial defrost period. One or more compressors of the refrigeration system are monitored to establish if the one or more compressors are running, and a parameter representative of the one or more compressors running is monitored. The monitoring establishes at least one parameter limit value representative of whether a defrost period or a non-defrost period is to be initiated. The invention also relates to a method for controlling a refrigeration system subsequent to an electrical power interruption. The invention also relates to control units for applying one or both of the methods according to the invention, and to a refrigeration system having one or more control units controlling the refrigeration system according to one or both of the methods.Type: GrantFiled: July 13, 2012Date of Patent: March 20, 2018Assignee: Danfoss A/SInventors: Gero C. Langenberg, Hans Erik Fogh
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Patent number: 9857112Abstract: The invention relates to a method for controlling a refrigerator. The method comprises the steps of establishing a time interval of a certain duration, a first use of the refrigerator starting a first time interval, starting a subsequent time interval based on the start of the first time interval, and subtracted a time difference. The subsequent time interval subtracted a time difference is being used for starting a cool-down period of the subsequent time interval. The invention also relates to a control unit for the refrigerator and to a refrigerator with such control unit.Type: GrantFiled: July 13, 2012Date of Patent: January 2, 2018Assignee: Danfoss A/SInventors: Gero C. Langenberg, Hans Erik Fogh
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Patent number: 9829228Abstract: The invention relates to a method for controlling a refrigerator. The method comprises the steps of establishing a time interval of a certain duration, a first use of the refrigerator starting a first time interval, starting a subsequent time interval based on the start of the first time interval, and subtracted a time difference. The subsequent time interval subtracted a time difference is being used for starting a cool-down period of the subsequent time interval. The invention also relates to a control unit for the refrigerator and to a refrigerator with such control unit.Type: GrantFiled: July 13, 2012Date of Patent: November 28, 2017Assignee: Danfoss A/SInventors: Gero C. Langenberg, Hans Erik Fogh
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Publication number: 20140174109Abstract: The invention relates to a method for controlling a refrigerator. The method comprises the steps of establishing a time interval of a certain duration, a first use of the refrigerator starting a first time interval, starting a subsequent time interval based on the start of the first time interval, and subtracted a time difference. The subsequent time interval subtracted a time difference is being used for starting a cool-down period of the subsequent time interval. The invention also relates to a control unit for the refrigerator and to a refrigerator with such control unit.Type: ApplicationFiled: July 13, 2012Publication date: June 26, 2014Applicant: DANFOSS A/SInventors: Gero C. Langenberg, Hans Erik Fogh
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Publication number: 20140165630Abstract: The invention relates to a method for controlling a refrigeration system by establishing a defrost period during an initial defrost period. One or more compressors of the refrigeration system are monitored to establish if the one or more compressors are running, and a parameter representative of the one or more compressors running is monitored. The monitoring establishes at least one parameter limit value representative of whether a defrost period or a non-defrost period is to be initiated. The invention also relates to a method for controlling a refrigeration system subsequent to an electrical power interruption. The invention also relates to control units for applying one or both of the methods according to the invention, and to a refrigeration system having one or more control units controlling the refrigeration system according to one or both of the methods.Type: ApplicationFiled: July 13, 2012Publication date: June 19, 2014Applicant: DANFOSS A/SInventors: Gero C. Langenberg, Hans Erik Fogh
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Patent number: 8658913Abstract: The invention concerns a control box arrangement (1) with a control box (2) and a mounting plate (4) having a front side (18) and a rear side (11) and an opening (5) in which the control box (2) is inserted from the front side (18). It is endeavored to enable simple mounting and dismounting. For this purpose, the control box (2) includes at least one locking bar (7), which rests on the rear side (11) in a mounting position (9), a mounting element (10) being insertable in the control box (2) to displace the locking bar (7) to the mounting position (9).Type: GrantFiled: June 18, 2009Date of Patent: February 25, 2014Assignee: Danfoss A/SInventors: Jerry Hultgreen, Hans Erik Fogh
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Publication number: 20120061136Abstract: The invention concerns a control box arrangement (1) with a control box (2) and a mounting plate (4) comprising a front side (18) and a rear side (11) and an opening (5) in which the control box (2) is inserted from the front side (18). It is endeavoured to enable simple mounting and dismounting. For this purpose, the control box (2) comprises at least one locking bar (7), which rests on the rear side (11) in a mounting position (9), a mounting element (10) being insertable in the control box (2) to displace the locking bar (7) to the mounting position (9).Type: ApplicationFiled: June 18, 2009Publication date: March 15, 2012Applicant: Danfoss A/sInventors: Jerry Hultgreen, Hans Erik Fogh
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Patent number: 7544091Abstract: An insulated box, suitable as a refrigerator, having readily accessible conductor current tap capabilities for electrical/electronic components within the box. The box has a wall made with electrically separated layers and having an electrical conductor incorporated between the layers. The components are connected to the conductor via entry points through which a conductive member can penetrate one of the layers and thereby establish contact between the conductor and electronic components. Thereby it is achieved that electrical components can be fitted to the inner surface of the box by use of the conductor which is incorporated between the layers and without implying additional fastening of conductors to an outer surface of the box. In particular, the invention facilitates refitting of electrical components in a refrigerator.Type: GrantFiled: June 17, 2005Date of Patent: June 9, 2009Assignee: Danfoss A/SInventors: Hans Joergen Klein, Gert B. Jakobsen, Hans Erik Fogh, Erik Raun Jensen
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Publication number: 20090088903Abstract: The invention provides a system adapted to modify a temperature of a space based on a user selected set-point for the temperature of the space, e.g. a refrigerator, a sauna or a regular building with a HVAC system. The set-point is selected via a control structure which includes a handle being movable relative to a base. In order to simplify the installation and the structure of the space, and further to enable better thermal isolation of the space, the handle comprises a temperature sensing structure. Accordingly, no additional installation work, cabling, and penetration of the wall into the space are necessary for installing separate temperature sensing devices.Type: ApplicationFiled: February 27, 2007Publication date: April 2, 2009Applicant: Danfoss A/SInventors: Hans Joergen Klein, Hans-Erik Fogh
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Patent number: 6354508Abstract: The invention concerns an electronic temperature controller, particularly for refrigeration appliances, with mains connections (3, 4) and an electronic circuit (1) having a power supply (7), a control unit and measuring and setting elements (9, 10, 11). The mains connections (3, 4) are connected with the power supply (7) via protective impedances (5, 6) consisting of at least two single impedances connected in series, and the electronic circuit is dimensioned for an operating current of maximum 0.35 mA (peak value) when connected to an AC mains and maximum 1 mA when connected to a DC mains. These values are doubled, when the electronic circuit has an earthing connection. This gives safety for the operator through shock-proof protection, which can be achieved at low cost and with small dimensions.Type: GrantFiled: April 17, 2000Date of Patent: March 12, 2002Assignee: Danfoss A/SInventors: Hans Erik Fogh, Axel Schønwandt
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Patent number: 6138465Abstract: The invention concerns a method for controlling the temperature of a refrigeration unit (1) with a refrigerating compartment (3), a freezing compartment (2) and a common evaporator (4) of a cooling circuit, and a corresponding temperature control arrangement. In a first mode (normal operation) the compressor (5) of the cooling circuit is turned ON when cooling is required and turned OFF when cooling is not required, in dependence of the refrigerating compartment temperature (T.sub.2). In a second mode, in spite of no cooling requirement in the refrigerating compartment (3), the compressor (5) is forced ON for a predetermined operating time (t.sub.1), when the OFF-time of the compressor has exceeded a threshold value (t.sub.2). The forced turning ON is repeated as often as the OFF-time exceeds the threshold value. A return to the first mode occurs as soon as the refrigerating compartment (3) requires cooling.Type: GrantFiled: June 24, 1999Date of Patent: October 31, 2000Assignee: Danfoss A/SInventors: Hans Erik Fogh, Hans Christiansen
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Patent number: 6084757Abstract: A protective impedance for a mains voltage supplied electronic circuit has ohmic resistors which are applied to a substrate as film. At least two resistors form a series connection. At least two series connections are connected in parallel. This permits relatively large operating currents with relatively short series connections.Type: GrantFiled: October 23, 1998Date of Patent: July 4, 2000Assignee: Danfoss A/SInventors: Hans Erik Fogh, Axel Sch.o slashed.nwandt