Patents by Inventor Hans-Georg Zentgraf
Hans-Georg Zentgraf 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: 8371833Abstract: A supply device for the supply of pressure fluid into at least one vehicle brake or into a pressure fluid accumulator, wherein a piston is movably arranged in an accommodating member, a carrier bears a non-return valve arranged coaxially to the piston for the purpose of ventilating a working chamber into which the piston plunges, and wherein a resetting spring is arranged between the carrier and the piston. A multi-piece cage facilitating inserting the resetting spring into the cage parts, the cage parts comprise a fastener that locks the cage due to relative displacement of the cage parts, and the resetting spring is caged and simultaneously elastically preloaded under the relative displacement of the cage parts.Type: GrantFiled: April 15, 2010Date of Patent: February 12, 2013Assignee: Continental Teves AG & Co. oHGInventors: Dieter Dinkel, Axel Hinz, Albrecht Otto, Hans-Georg Zentgraf, Daniela Zuk
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Patent number: 7785086Abstract: The invention relates to a supply device for the supply of pressure fluid into at least one vehicle brake or into a pressure fluid accumulator, wherein a piston is movably arranged in an accommodating member, a carrier bears a non-return valve arranged coaxially to the piston for the purpose of ventilating a working chamber into which the piston plunges , and wherein a resetting spring is arranged between the carrier and the piston. It is the essence of the invention that a multi-piece cage allows inserting the resetting Spring into the cage parts, the cage parts comprise fastening means that lock the cage due to relative displacement of the cage parts, and the resetting spring is caged and simultaneously elastically preloaded under the relative displacement of the cage parts.Type: GrantFiled: September 23, 2003Date of Patent: August 31, 2010Assignee: Continental Teves AG & Co. oHGInventors: Dieter Dinkel, Axel Hinz, Albrecht Otto, Hans-Georg Zentgraf, Daniel Zuk
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Publication number: 20100202908Abstract: A supply device for the supply of pressure fluid into at least one vehicle brake or into a pressure fluid accumulator, wherein a piston is movably arranged in an accommodating member, a carrier bears a non-return valve arranged coaxially to the piston for the purpose of ventilating a working chamber into which the piston plunges, and wherein a resetting spring is arranged between the carrier and the piston. A multi-piece cage facilitating inserting the resetting spring into the cage parts, the cage parts comprise fastening means that lock the cage due to relative displacement of the cage parts, and the resetting spring is caged and simultaneously elastically preloaded under the relative displacement of the cage parts.Type: ApplicationFiled: April 15, 2010Publication date: August 12, 2010Applicant: Continental Teves AG & Co. oHGInventors: Dieter Dinkel, Axel Hinz, Albrecht Otto, Hans-Georg Zentgraf, Daniela Zuk
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Patent number: 7390174Abstract: A piston pump (10) for a hydraulic consumer of an electronically controlled vehicle brake system, carries a stepped piston (50, 50?) and centers a sealing assembly (26, 26?) which is retained in an axial direction Ax by a step (52, 52?) on the stepped piston (50, 50?), on the one hand, and is retained by a spring cage (53, 53?), on the other hand. The stepped piston (50, 50?) includes a plane support (54, 54?) for plane support legs (55a,b,c; 55a,b,c?) of the spring cage (53, 53?) The stepped piston (50, 50?) includes radially inwards, with respect to the support (54, 54?), a stepped bore (56, 56?), with the bore (56, 56?) accommodating centering legs (57a,b,c; 57a,b,c?) of the spring cage (53, 53?). Coaxially as well as inside the stepped bore (56, 56?), a spring-loaded valve member (59, 59?) of a non-return valve is arranged.Type: GrantFiled: October 12, 2005Date of Patent: June 24, 2008Assignee: Continental Teves AG & Co., oHGInventors: Dieter Dinkel, Albrecht Otto, Georg Sonnenschein, Hans-Georg Zentgraf, Kristian Tarandek
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Publication number: 20070114840Abstract: A piston-type accumulator, with an axially movable piston (8) in a housing bore (5), includes a seal (4) interposed between the piston (8) and the housing bore (5), which is fixed inside the housing bore (5), and a cover (6) for closing the housing bore (5). The housing bore (5) is designed as a stepped bore enlarged in diameter in the direction of the cover (6) for the simple accommodation of the seal (4).Type: ApplicationFiled: April 19, 2004Publication date: May 24, 2007Inventors: Rudiger Briesewitz, Albrecht Otter, Dieter Dinkel, Hans-Georg Zentgraf
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Publication number: 20070092389Abstract: A piston pump (10) for supplying pressure fluid into at least one vehicle brake, into a master cylinder, into a pressure fluid reservoir, or into a pressure fluid accumulator of a controlled vehicle brake system, is integrated into an accommodating member (3) in a simple and space-saving manner. A plurality of valve seats (38, 54) of non-return valves (32, 33, 36, 37) are kept as free as possible from pressing or attaching forces in that a sleeve (18, 19) has a radial flange for being secured in position between a closing member (52) and the accommodating member (3).Type: ApplicationFiled: December 12, 2003Publication date: April 26, 2007Inventors: Dieter Dinkel, Albrecht Otto, Hans-Georg Zentgraf
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Publication number: 20060083629Abstract: A piston pump (10) for a hydraulic consumer of an electronically controlled vehicle brake system, carries a stepped piston (50, 50?) and centers a sealing assembly (26, 26?) which is retained in an axial direction Ax by a step (52, 52?) on the stepped piston (50, 50?), on the one hand, and is retained by a spring cage (53, 53?), on the other hand. The stepped piston (50, 50?) includes a plane support (54, 54?) for plane support legs (55a,b,c; 55a,b,c?) of the spring cage (53, 53?) The stepped piston (50, 50?) includes radially inwards, with respect to the support (54, 54?), a stepped bore (56, 56?), with the bore (56, 56?) accommodating centering legs (57a,b,c; 57a,b,c?) of the spring cage (53, 53?). Coaxially as well as inside the stepped bore (56, 56?), a spring-loaded valve member (59, 59?) of a non-return valve is arranged.Type: ApplicationFiled: October 12, 2005Publication date: April 20, 2006Inventors: Dieter Dinkel, Albrecht Otto, Georg Sonnenschein, Hans-Georg Zentgraf, Kristian Tarandek
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Publication number: 20050265872Abstract: The invention relates to a supply device for the supply of pressure fluid into at least one vehicle brake or into a pressure fluid accumulator, wherein a piston is movably arranged in an accommodating member, a carrier bears a non-return valve arranged coaxially to the piston for the purpose of ventilating a working chamber into which the piston plunges, and wherein a resetting spring is arranged between the carrier and the piston. It is the essence of the invention that a multi-piece cage allows inserting the resetting spring into the cage parts, the cage parts comprise fastening means that lock the cage due to relative displacement of the cage parts, and the resetting spring is caged and simultaneously elastically preloaded under the relative displacement of the cage parts.Type: ApplicationFiled: September 23, 2003Publication date: December 1, 2005Inventors: Dieter Dinkel, Axel Hinz, Albrecht Otto, Hans-Georg Zentgraf