Patents by Inventor Peter J. M. Clausen
Peter J. M. Clausen 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: 7726950Abstract: A fluid supply unit includes a hydraulic supply unit and a pressure generator for the fluid and a pressure outlet. A pressure booster is installed between the pressure generator and the pressure outlet and is rigidly mechanically connected with the pressure generator, wherein the pressure booster (6) is driven by a portion of the fluid generated by the pump.Type: GrantFiled: October 9, 2003Date of Patent: June 1, 2010Assignee: miniBooster Hydraulics A/SInventors: Leif Hansen, Peter J. M. Clausen, Christen Espersen
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Patent number: 7686596Abstract: A hydraulic pressure amplifier with a housing which has an end face at a low pressure side and an end face at a high pressure side and a circumferential wall between the two end faces, wherein an outlet valve is arranged adjacent the end face on the high pressure side, and an outlet duct for the hydraulic liquid which is under high pressure. In a pressure amplifier of the above-described type, the outlet duct opens into the circumferential wall or extends through a connection plug which is screwed into the end face on the high pressure side and closes off an assembly duct which receives the outlet valve.Type: GrantFiled: May 31, 2007Date of Patent: March 30, 2010Assignee: miniBOOSTER HYDRAULICS A/SInventors: Peter J. M. Clausen, Leif Hansen, Thyge Bollmann, Christen Espersen
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Patent number: 7204087Abstract: A hydraulic tool has a motor, a valve, a hydraulic intensifier, and a supply connector. The hydraulic intensifier is arranged between the valve and the motor. The valve and the motor are arranged behind one another in a longitudinal direction of the tool. The hydraulic intensifier has at least one intensifier piston having a movement direction that is positioned at a first angle greater than 0° relative to the longitudinal direction of the tool.Type: GrantFiled: February 11, 2005Date of Patent: April 17, 2007Assignee: miniBooster Hydraulics A/SInventors: Leif Hansen, Christen Espersen, Thyge Bollmann, Peter J. M. Clausen
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Patent number: 6866485Abstract: A double-acting hydraulic pressure intensifier includes a supply connection, a return connection, a high-pressure connection. An intensifier piston assembly includes a low-pressure piston arranged in a low-pressure cylinder and two high-pressure pistons connected to the low-pressure piston each arranged in a high-pressure cylinder. A switching valve assembly includes a displace able, hydraulically controlled valve element which on its two opposite sides in the direction of displacement has control pressure chambers with pressure application areas of different sizes, namely, a first control pressure chamber with a smaller pressure application area and a second control pressure chamber with a larger pressure application area. A stop plug is arranged between the second control pressure chamber and the supply connection.Type: GrantFiled: November 26, 2002Date of Patent: March 15, 2005Assignee: miniBOOSTER HYDRAULICS A/SInventors: Leif Hansen, Peter J. M. Clausen, Christen Esperson, Jan Petersen
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Patent number: 6776080Abstract: A hydraulic pressure intensifier includes a supply connection, a return connection, and a high-pressure connection. An intensifier piston assembly includes a high-pressure cylinder with a high-pressure piston displaceable therein and a low-pressure cylinder having a greater cross-section than the high-pressure cylinder, with a low-pressure piston which is displaceable therein. The low-pressure piston is connected to the high-pressure piston and divides the low-pressure cylinder into a first low-pressure chamber on the side of the high-pressure piston and a second low-pressure chamber. A switching valve acts on the second low-pressure chamber with pressure from a pressure source or relieves it of pressure.Type: GrantFiled: November 26, 2002Date of Patent: August 17, 2004Assignee: miniBooster Hydraulics A/SInventors: Leif Hansen, Peter J. M. Clausen, Christen Esperson, Jan Petersen
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Publication number: 20030097924Abstract: A hydraulic pressure intensifier includes a supply connection, a return connection, and a high-pressure connection. An intensifier piston assembly includes a high-pressure cylinder with a high-pressure piston displaceable therein and a low-pressure cylinder having a greater cross-section than the high-pressure cylinder, with a low-pressure piston which is displaceable therein. The low-pressure piston is connected to the high-pressure piston and divides the low-pressure cylinder into a first low-pressure chamber on the side of the high-pressure piston and a second low-pressure chamber. A switching valve acts on the second low-pressure chamber with pressure from a pressure source or relieves it of pressure.Type: ApplicationFiled: November 26, 2002Publication date: May 29, 2003Applicant: miniBOOSTER HYDRAULICS A/SInventors: Leif Hansen, Peter J.M. Clausen, Christen Esperson, Jan Petersen
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Publication number: 20030099556Abstract: A double-acting hydraulic pressure intensifier includes a supply connection, a return connection, a high-pressure connection. An intensifier piston assembly includes a low-pressure piston arranged in a low-pressure cylinder and two high-pressure pistons connected to the low-pressure piston each arranged in a high-pressure cylinder. A switching valve assembly includes a displace able, hydraulically controlled valve element which on its two opposite sides in the direction of displacement has control pressure chambers with pressure application areas of different sizes, namely, a first control pressure chamber with a smaller pressure application area and a second control pressure chamber with a larger pressure application area. A stop plug is arranged between the second control pressure chamber and the supply connection.Type: ApplicationFiled: November 26, 2002Publication date: May 29, 2003Applicant: miniBOOSTER HYDRAULICS A/SInventors: Leif Hansen, Peter J.M. Clausen, Christen Esperson, Jan Petersen
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Patent number: 4749845Abstract: This invention relates to an electrically conductive silicon carbide heating unit that includes an axially elongated, silicon carbide tubular heating element which is electrically conductive. The heating element is provided with an annular flange that has an axial bore into which the electrode is extended. Silicon solder fills the gap in the bore, extends somewhat outwardly of the flange to provide a protective layer and provide a good electrical connection between the heater element and the electrode. A stainless steel sleeve is provided on the electrode to extend outwardly from the silicon solder.Type: GrantFiled: June 12, 1987Date of Patent: June 7, 1988Assignee: Danfoss A/SInventors: Hilmar O. Rasmussen, Jorgen H. Petersen, Ove S. Boe, Peter J. M. Clausen
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Method of soldering a metal electrode to an electrically conductive silicone carbide ceramic element
Patent number: 4687893Abstract: The invention relates to a method for soldering a metal electrode to an electrically conductive silicon carbide ceramic element and to a silicon carbide ceramic element made in accordance with the method. Silicon is used as the solder which provides a good electrical connection and, as the solder has approximately the same coefficient of expansion as the ceramic element mechanical stress due to temperature changes is minimized.Type: GrantFiled: November 28, 1986Date of Patent: August 18, 1987Assignee: Danfoss A/SInventors: Hilmar O. Rasmussen, Jorgen H. Petersen, Ove S. Boe, Peter J. M. Clausen -
Patent number: 4681533Abstract: In a vapor burner for liquid fuel there is an electrically heatable gasifying chamber (1), a passage system (K) concentric therewith for supplying air of combustion, and a burner tube (26) which surrounds a combustion chamber (25) and is bounded at the rear by an annular closure wall (22). The gasifying chamber (1) is formed substantially by a central gasifying tube (2). Guide means (19) serve to produce an external annular eddy (31) of combustion gases that extends along the inside (33) of the burner tube (26) rearwardly at least over a section disposed axially in front of the mouth (23) of the passage system (K). An ionisation measuring electrode (35) placed in the backward flow permits the flame to be accurately detected independently of the flame front which changes with a change in the burner output. When the burner tube (26) glows, there is automatic re-ignition if the flame blows off.Type: GrantFiled: July 26, 1985Date of Patent: July 21, 1987Assignee: Danfoss A/SInventors: Jorgen H. Petersen, Peter J. M. Clausen
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Patent number: 4634481Abstract: The invention relates to a method of making for a vapor burner a tubular fuel preparing chamber which opens into a combustion chamber and is heatable to a relatively high temperature. The fuel preparing chamber is cooperable with an air supply system which supplies combustion air and is formed with ceramic tubes which are heatable to a glow temperature for effecting ignition and effecting a cleansing temperature wherein deposits on the wall of the chamber are burned to ash. The fuel preparing chamber includes a plurality of ceramic parts including first and second smaller and larger diameter tube parts with the first tube part being pushed into the inlet section of the second tube part. The chamber also includes a ceramic closure part at the outlet end of the second tube with which it has a close fit. The method involves assembling the ceramic parts and unifying them by said sintering.Type: GrantFiled: October 11, 1984Date of Patent: January 6, 1987Assignee: Danfoss A/SInventors: Jorgen H. Petersen, Peter J. M. Clausen, Hilmar O. Rasmussen
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Patent number: 4515555Abstract: The invention relates to a vapor burner for liquid fuel having an elongated gasifying chamber preceeding a combustion chamber which is heatable to gasifying temperatures by electrical heating apparatus. The gasifying chamber has an inlet for liquid fuel and an outlet for the gasified fuel feeding into the combustion chamber. The gasifying chamber is formed so that no forced air is admissible to the inlet thereof. The heating apparatus heats the gasifying chamber along the length thereof and includes apparatus surrounding the outlet end thereof to form a glow zone heatable to the fuel mixture ignition temperature.Type: GrantFiled: October 26, 1983Date of Patent: May 7, 1985Assignee: Danfoss A/SInventors: Jorgen H. Petersen, Peter J. M. Clausen, Hilmar O. Rasmussen
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Patent number: 4497625Abstract: The invention relates to a vapor burner having a tubular fuel preparing chamber which opens into a combustion chamber and is heatable to a relatively high temperature. The fuel preparing chamber is cooperable with an air supply system which supplies combustion air. The fuel preparing chamber is formed with ceramic tubes which are heatable to a glow temperature for effecting ignition and effecting a cleansing temperature wherein deposits on the wall of the chamber are burned to ash.Type: GrantFiled: November 10, 1983Date of Patent: February 5, 1985Assignee: Danfoss A/SInventors: Jorgen H. Petersen, Peter J. M. Clausen, Hilmar O. Rasmussen
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Patent number: 4472133Abstract: A self cleaning vapor burner for liquid fuel in communication with a combustion chamber. The burner includes an electrically heated evaporating tube. The supply of liquid fuel is periodically interrupted to the evaporating tube wherein the tube is heated to a predetermined cleaning temperature to effect deposits on the evaporating tube wall to ash.Type: GrantFiled: October 26, 1983Date of Patent: September 18, 1984Assignee: Danfoss A/SInventors: Jorgen H. Petersen, Peter J. M. Clausen, Hilmar O. Rasmussen
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Patent number: 4275996Abstract: The invention relates to a control unit for an adjustable fluid pump or motor controlled by a servomotor. The control unit is of the type having a slide valve with a neutral blocking position with supply and exhaust positions on opposite sides of the neutral position. The neutral position provides a zero pump feed condition and the improvement resides in a construction wherein the fed amount is absolutely zero. This is accomplished with a secondary valve which has a fixed part and a moveable part which moves with the actuator. The secondary valve has fluid passages which short circuit the supply and exhaust connections of the unit over a small travel range on opposite sides of the neutral position of the actuator.Type: GrantFiled: June 13, 1979Date of Patent: June 30, 1981Assignee: Danfoss A/SInventors: Jan Zangenberg, Peter J. M. Clausen