Patents by Inventor Jes Vogler
Jes Vogler 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: 8827546Abstract: A method for calibrating a superheat sensor (5) for a refrigeration system is provided. The method comprises the following steps. Increasing an amount of liquid refrigerant in the evaporator (1), e.g. by increasing an opening degree of the expansion valve (3). Monitoring one or more parameters, e.g. the temperature of refrigerant leaving the evaporator (1), said parameters reflecting a superheat value of the refrigerant. Allowing the value of each of the parameter(s) to decrease. When the value(s) of the monitored parameter(s) reaches a substantially constant level, defining the superheat value corresponding to the constant level to be SH=0. The superheat sensor (5) is then calibrated in accordance with the defined SH=0 level. When the parameter(s) reaches the substantially constant level it is an indication that liquid refrigerant is allowed to pass through the evaporator (1), and thereby that the superheat of the refrigerant leaving the evaporator (1) is zero.Type: GrantFiled: September 4, 2009Date of Patent: September 9, 2014Assignee: Danfoss A/SInventors: Asbjoern Leth Vonsild, Claus Thybo, Lars Finn Sloth Larsen, Jakob Spangberg, Jesper Hoeyer, Jes Vogler
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Patent number: 8117920Abstract: The invention provides a restriction element for a pressure sensor to protect the pressure element from flow related damage. The pressure sensor comprising a housing with a fluid inlet channel and a chamber with a pressure element. The pressure element comprises a housing part with a recess covered by a sealing diaphragm forming a cavity. In the oil-filled cavity a sensor element is placed. The restriction element is placed in front of the sealing diaphragm protecting the pressure element and especially the sealing diaphragm from a damaging pulse or other flow related damages caused by sudden changes in a flow system for example by closing a valve.Type: GrantFiled: November 21, 2007Date of Patent: February 21, 2012Assignee: Danfoss A/SInventor: Jes Vogler
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Publication number: 20110222576Abstract: A method for calibrating a superheat sensor (5) for a refrigeration system is provided. The method comprises the following steps. Increasing an amount of liquid refrigerant in the evaporator (1), e.g. by increasing an opening degree of the expansion valve (3). Monitoring one or more parameters, e.g. the temperature of refrigerant leaving the evaporator (1), said parameters reflecting a superheat value of the refrigerant. Allowing the value of each of the parameter(s) to decrease. When the value(s) of the monitored parameter(s) reaches a substantially constant level, defining the superheat value corresponding to the constant level to be SH=0. The superheat sensor (5) is then calibrated in accordance with the defined SH=0 level. When the parameter(s) reaches the substantially constant level it is an indication that liquid refrigerant is allowed to pass through the evaporator (1), and thereby that the superheat of the refrigerant leaving the evaporator (1) is zero.Type: ApplicationFiled: September 4, 2009Publication date: September 15, 2011Applicant: Danfoss A/SInventors: Asbjoern Leth Vonsild, Claus Thybo, Lars Finn Sloth Larsen, Jakob Spangberg, Jesper Hoeyer, Jes Vogler
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Publication number: 20100064815Abstract: The invention provides a restriction element for a pressure sensor to protect the pressure element from flow related damage. The pressure sensor comprising a housing with a fluid inlet channel and a chamber with a pressure element. The pressure element comprises a housing part with a recess covered by a sealing diaphragm forming a cavity. In the oil-filled cavity a sensor element is placed. The restriction element is placed in front of the sealing diaphragm protecting the pressure element and especially the sealing diaphragm from a damaging pulse or other flow related damages caused by sudden changes in a flow system for example by closing a valve.Type: ApplicationFiled: November 21, 2007Publication date: March 18, 2010Inventor: Jes Vogler
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Patent number: 7311007Abstract: The invention provides a pressure sensor with a housing for a pressure sensing arrangement, e.g. a semi-conductor arrangement. The housing consists of a bottom part and an intermediate member with a through hole forming a sidewall of a cavity for the pressure sensing arrangement. A membrane is attached to the intermediate member to cover an opening of the cavity, and to allow pressure from outside to propagate into a pressure transmitting medium contained inside the housing and thus to the pressure sensing arrangement therein. The invention also provides a method of making a pressure sensor with a housing of the above-described kind.Type: GrantFiled: December 10, 2003Date of Patent: December 25, 2007Assignee: Danfoss A/SInventor: Jes Vogler
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Patent number: 7201058Abstract: A pressure transmitter includes a body part and a sensor unit which are joined hermetically. Adjacent to the hermetic joint, there is a gap between adjacent surfaces of the body and sensor unit, which gap facilitates an easier assembling procedure and which facilitates transportation of gases away from the hermetic joint zone when the body and sensor unit is assembled e.g. by welding.Type: GrantFiled: January 27, 2005Date of Patent: April 10, 2007Assignee: Danfoss A/SInventors: Jes Vogler, Erling Thomsen
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Publication number: 20060048580Abstract: The invention provides a pressure sensor with a housing for a pressure sensing arrangement, e.g. a semi-conductor arrangement. The housing consists of a bottom part and an intermediate member with a through hole forming a sidewall of a cavity for the pressure sensing arrangement. A membrane is attached to the intermediate member to cover an opening of the cavity, and to allow pressure from outside to propagate into a pressure transmitting medium contained inside the housing and thus to the pressure sensing arrangement therein. The invention also provides a method of making a pressure sensor with a housing of the above-described kind.Type: ApplicationFiled: December 10, 2003Publication date: March 9, 2006Applicant: A/SInventor: Jes Vogler
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Publication number: 20050189428Abstract: The invention provides a pressure transmitter with a body part and a sensor unit which is joined hermetically. Adjacent the hermetic joint, there is a gap between adjacent surfaces of the body and sensor unit, which gap facilitates an easier assembling procedure and which facilitates transportation of gases away from the hermetic joint zone when the body and sensor unit is assembled e.g. by welding. The invention also provides a body part, a sensor unit part and a kit comprising such parts for making a transmitter of the above mentioned kind.Type: ApplicationFiled: January 27, 2005Publication date: September 1, 2005Applicant: Danfoss A/SInventors: Jes Vogler, Erling Thomsen
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Patent number: 4196326Abstract: The invention relates to a pressure responsive electric switch assembly of a type used as evaporator thermostats for refrigerators. In this unit an actuating element for operating a switch is held in equilibrium by two springs acting in opposition to a bellows which is connected to a temperature sensor capsule containing a liquid-vapor filling. An abutment arrangement is provided for the springs so that, despite a constantly rising pressure in the bellows, the actuating element operated by the bellows has a zero or null displacement range which corresponds to a substantial intermediate pressure range to which the bellows is subjected by the temperature sensor. As there is no movement by the actuating element in this intermediate range, there is an avoidance of wear which would otherwise be caused by this movement.Type: GrantFiled: October 12, 1978Date of Patent: April 1, 1980Assignee: Danfoss A/SInventors: Jes Vogler, Peter R. Hanson, Niels P. Thorsen