Patents by Inventor Juergen Kretschmer
Juergen Kretschmer 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: 9447707Abstract: The invention relates to a hydraulic support element for valve drive of a combustion engine, with a pot cylindrical casing and a hollow cylindrical piston guided axially movably therein, the inner end of which is supported via a spring on the bottom wall of the casing, whose outer end projects past the outer margin of the casing and is formed as a hemispherical bearing head, and whose inner space is subdivided by means of a partition element into an axially inner supply-pressure space and an axially outer switching-pressure space.Type: GrantFiled: May 11, 2015Date of Patent: September 20, 2016Assignee: Schaeffler Technologies AG & Co. KGInventors: Jürgen Kretschmer, Peter Sailer, Wolfgang Christgen, Matthew Evans, David Kehr, Chad Lee
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Publication number: 20150330269Abstract: The invention relates to a hydraulic support element for valve drive of a combustion engine, with a pot cylindrical casing and a hollow cylindrical piston guided axially movably therein, the inner end of which is supported via a spring on the bottom wall of the casing, whose outer end projects past the outer margin of the casing and is formed as a hemispherical bearing head, and whose inner space is subdivided by means of a partition element into an axially inner supply-pressure space and an axially outer switching-pressure space.Type: ApplicationFiled: May 11, 2015Publication date: November 19, 2015Applicant: Schaeffler Technologies AG & Co. KGInventors: Jürgen Kretschmer, Peter Sailer, Wolfgang Christgen, Matthew Evans, David Kehr, Chad Lee
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Patent number: 8869764Abstract: In a valve drive for an internal combustion engine, with a rocker arm (40) being arranged in its cylinder head pivotal by the cams of a camshaft and supported with one end at the valve shaft of a charge-cycle valve, while comprising at its other end a ball scraper (46), resting on the spherical end section (44) of a support element (42) embodied as a hydraulic valve clearance compensation element, a groove-shaped ventilation channel (57) is arranged according to the invention in the contact area between the ball scraper (46) of the rocker arm (40) and the spherical end section (44) of the support element (42) by which the oil reservoir (54) of the support element (42) is open towards the outside.Type: GrantFiled: July 19, 2012Date of Patent: October 28, 2014Assignee: Schaeffler Technologies AG & Co. KGInventors: Juergen Kretschmer, Wolfgang Christgen, Melanie Stark
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Patent number: 8813705Abstract: A hydraulic support element having a housing, a pressure piston, a high pressure chamber for a hydraulic means extending between a bottom face of the pressure piston and a bottom of the housing, wherein the housing includes a passage for the hydraulic means, which communicates radially inwardly with an aperture in the pressure piston, wherein the pressure piston includes a deflecting sheath for the hydraulic means, tightly contacting the pressure piston at the interior jacket axially below the aperture and extending to the proximity of a head of the pressure piston, wherein a rising line for the hydraulic means is formed between the deflecting sheath and the interior jacket, which starts at the aperture and leads in the area of the head into a reservoir inside the deflecting sheath directly in front of the return valve and with the deflecting sheath having at least one perforation axially above its contact.Type: GrantFiled: May 2, 2012Date of Patent: August 26, 2014Assignee: Schaeffler Technologies AG & Co. KGInventors: Wolfgang Christgen, Juergen Kretschmer, Melanie Stark
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Publication number: 20130025555Abstract: In a valve drive for an internal combustion engine, with a rocker arm (40) being arranged in its cylinder head pivotal by the cams of a camshaft and supported with one end at the valve shaft of a charge-cycle valve, while comprising at its other end a ball scraper (46), resting on the spherical end section (44) of a support element (42) embodied as a hydraulic valve clearance compensation element, a groove-shaped ventilation channel (57) is arranged according to the invention in the contact area between the ball scraper (46) of the rocker arm (40) and the spherical end section (44) of the support element (42) by which the oil reservoir (54) of the support element (42) is open towards the outside.Type: ApplicationFiled: July 19, 2012Publication date: January 31, 2013Applicant: Schaeffler Technologies AG & Co. KGInventors: Juergen Kretschmer, Wolfgang Christgen, Melanie Stark
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Publication number: 20120279386Abstract: A hydraulic support element having a housing, a pressure piston, a high pressure chamber for a hydraulic means extending between a bottom face of the pressure piston and a bottom of the housing, wherein the housing includes a passage for the hydraulic means, which communicates radially inwardly with an aperture in the pressure piston, wherein the pressure piston includes a deflecting sheath for the hydraulic means, tightly contacting the pressure piston at the interior jacket axially below the aperture and extending to the proximity of a head of the pressure piston, wherein a rising line for the hydraulic means is formed between the deflecting sheath and the interior jacket, which starts at the aperture and leads in the area of the head into a reservoir inside the deflecting sheath directly in front of the return valve and with the deflecting sheath having at least one perforation axially above its contact.Type: ApplicationFiled: May 2, 2012Publication date: November 8, 2012Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Wolfgang Christgen, Juergen Kretschmer, Melanie Stark
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Patent number: 7237834Abstract: A panel system for use within an interior of a vehicle includes a panel member configured for placement along the overhead portion of the interior of the vehicle. A support member substantially surrounds the panel member and is configured for attachment to the vehicle. The support member includes frame segments interconnected by connectors. At least one fastener is provided for securing the panel member to the support member. An accessory mounted is to a receiving structure on a frame segment and is configured for use by an occupant of the vehicle.Type: GrantFiled: September 19, 2002Date of Patent: July 3, 2007Assignee: Johnson Controls GmbHInventors: Alexander Czinki, Jürgen Kretschmer, Torsten Leenaerts, Wolfgang Mueller
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Patent number: 6575494Abstract: An active head restraint for an automotive seat which includes a base component, a headrest support, and a gas bag module. The base component is connected to the seat. The headrest support is detachably connected to the base component. The gas module is integrated between the base component and the headrest support in such a manner that in a restraining event detected by sensors, the headrest support component is released from the base component by inflating a gas bag.Type: GrantFiled: September 14, 2000Date of Patent: June 10, 2003Assignee: Johnson Controls Technology CompanyInventors: Alexander Heilig, Lothar Zink, Andreas Loos, Alfred Scholl, John Bleau, Juergen Kretschmer