Patents by Inventor Stephan Krebs
Stephan Krebs 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: 8926293Abstract: Disclosed is a motor-pump assembly (1) for a brake actuating device of a motor vehicle brake system with a pneumatic brake booster. An electric motor (3) drives a double diaphragm pump (2) with two working diaphragms (4) which are located opposite one another. Air expelled from the working spaces (7) is directed into an interior space (22) surrounding a crank drive (8) of the pump housing (5). An air outlet unit (13) permits low-noise expulsion of the air from the interior space 22 by deflecting the air. In order to make available a low-noise, cost-reduced motor-pump assembly the eccentrics (9) each have an unbalance weight (25) integrally molded onto the eccentric (9).Type: GrantFiled: December 15, 2009Date of Patent: January 6, 2015Assignee: Continental Teves AG & Co. OHGInventors: Manfred Rüffer, Jens Bacher, Heinrich Kreh, Lazar Milisic, Karlheinz Seitz, Harald König, Michael Kollers, Jose Gonzalez, Michael Jürging, Marcel Niepenberg, Stephan Krebs
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Patent number: 8714941Abstract: Disclosed is a motor-pump assembly (1) for a brake actuating device of a motor vehicle brake system with a pneumatic brake booster. An electric motor (3) drives a double diaphragm pump (2) with two working diaphragms (4) which are located opposite one another. Air expelled from the working spaces (7) is directed into an interior space (22) surrounding a crank drive (8) of the pump housing (5). An air outlet unit (23, 53) has a filter housing (32, 54), a filter (33, 59), an air outlet cover (34, 56), a valve holding element (38, 70) and a valve body (31). A partition wall (37, 55) deflects the air emerging from the interior space (22) in the air outlet unit (23, 53 between the filter housing (32, 54) and the air outlet cover (34, 56), with an integrally molded valve holding element (38, 70).Type: GrantFiled: December 15, 2009Date of Patent: May 6, 2014Assignee: Continental Teves AG & Co. OHGInventors: Manfred Rüffer, Jens Bacher, Heinrich Kreh, Lazar Milisic, Karlheinz Seitz, Harald König, Michael Kollers, Jose Gonzalez, Michael Jürging, Marcel Niepenberg, Stephan Krebs
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Patent number: 8561520Abstract: A brake servo whose valve piston has a concentric sealing seat which projects axially beyond a second sealing seat, with the concentric sealing seat having at least one recess for throttling the air volume flow. The controllability and also the noise characteristics of the brake servo can be improved in this way.Type: GrantFiled: November 20, 2008Date of Patent: October 22, 2013Assignee: Continental Teves AG & Co. oHGInventors: Volker Ickler, Michael Kollers, Horst Kraemer, Stephan Krebs, Harald König, Ralf Jakobi, Thorsten Neu
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Publication number: 20110277464Abstract: Disclosed is a motor-pump assembly (1) for a brake actuating device of a motor vehicle brake system with a pneumatic brake booster. An electric motor (3) drives a double diaphragm pump (2) with two working diaphragms (4) which are located opposite one another. Air expelled from the working spaces (7) is directed into an interior space (22) surrounding a crank drive (8) of the pump housing (5). An air outlet unit (23, 53) has a filter housing (32, 54), a filter (33, 59), an air outlet cover (34, 56), a valve holding element (38, 70) and a valve body (31). A partition wall (37, 55) deflects the air emerging from the interior space (22) in the air outlet unit (23, 53 between the filter housing (32, 54) and the air outlet cover (34, 56), with an integrally molded valve holding element (38, 70).Type: ApplicationFiled: December 15, 2009Publication date: November 17, 2011Applicant: ONTINENTAL TEVES AG & CO. OHGInventors: Manfred Rüffer, Jens Bacher, Heinrich Kreh, Lazar Milisic, Karlheinz Seitz, Harald König, Michael Kollers, Jose Gonzalez, Michael Jürging, Marcel Niepenberg, Stephan Krebs
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Publication number: 20110271670Abstract: Disclosed is a motor-pump assembly (1) for a brake actuating device of a motor vehicle brake system with a pneumatic brake booster. An electric motor (3) drives a double diaphragm pump (2) with two working diaphragms (4) which are located opposite one another. Air expelled from the working spaces (7) is directed into an interior space (22) surrounding a crank drive (8) of the pump housing (5). An air outlet unit (13) permits low-noise expulsion of the air from the interior space 22 by deflecting the air. In order to make available a low-noise, cost-reduced motor-pump assembly the eccentrics (9) each have an unbalance weight (25) integrally molded onto the eccentric (9).Type: ApplicationFiled: December 15, 2009Publication date: November 10, 2011Applicant: CONTINENTAL TEVES AG & CO. AGInventors: Stephan Krebs, Manfred Rüffer, Jens Bacher, Heinrich Kreh, Lazar Milisic, Kartheinz Seitz, Harald König, Michael Kollers, Jose Gonzalez, Michael Jürging, Marcel Niepenberg
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Publication number: 20100288119Abstract: A brake servo whose valve piston has a concentric sealing seat which projects axially beyond a second sealing seat, with the concentric sealing seat having at least one recess for throttling the air volume flow. The controllability and also the noise characteristics of the brake servo can be improved in this way.Type: ApplicationFiled: November 20, 2008Publication date: November 18, 2010Applicant: CONTINENTAL TEVES AG & CO. OHGInventors: Volker Ickler, Michael Kollers, Horst Krämer, Stephan Krebs, Harald König, Ralf Jakobi, Thorsten Neu
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Patent number: 7784975Abstract: An apparatus (1) serves for linear illumination of a moving product web (6), the apparatus (1) having at least one light source (4) emitting light. In order to achieve high luminance in a linear subregion of the product web (6), at least a portion of the light emitted by the light source (4) is reflected towards the product web (6) by at least one tubular reflector (5). The tubular reflector (5) in this case has at least one light exit slit (7) which is assigned to the product web (6). Moreover, the tubular reflector has at least one observation slit (8) which lies opposite the light exit slit (7). The illuminated product web (6) can be observed through this observation slit (8) by means of a line camera (2).Type: GrantFiled: July 2, 2008Date of Patent: August 31, 2010Assignee: Texmag GmbH VertriebsgesellschaftInventors: Stephan Krebs, Alfred Eder, Juergen Eisen, Lars Zwerger
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Patent number: 7498774Abstract: A battery pack (2) for an associated hand-held electric machine tool (1) and for an associated charging device (13) including an analog temperature sensor (3) with a negative temperature coefficient and a temperature measuring interface (4) accessible from the outside. Battery protection electronics (5) arranged in the hand-held electric machine tool (1) and in the charging device (13), which have a battery protection logic (6) and a power switch (8) that is arranged in the circuit path (7) of the battery pack (2) can be influenced. The battery pack (2) is provided with an emergency protection circuit (10), which is connected in parallel with the analog temperature sensor (3) and which, in emergency situations, can actively reduce the total resistance (R) measurable from the outside via the temperature measuring interface (4).Type: GrantFiled: June 29, 2005Date of Patent: March 3, 2009Assignee: Hilti AktiengesellschaftInventors: Bernd Ziegler, Bernd Heigl, Stephan Krebs
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Publication number: 20090010006Abstract: An apparatus (1) serves for linear illumination of a moving product web (6), the apparatus (1) having at least one light source (4) emitting light. In order to achieve high luminance in a linear subregion of the product web (6), at least a portion of the light emitted by the light source (4) is reflected towards the product web (6) by at least one tubular reflector (5). The tubular reflector (5) in this case has at least one light exit slit (7) which is assigned to the product web (6). Moreover, the tubular reflector has at least one observation slit (8) which lies opposite the light exit slit (7). The illuminated product web (6) can be observed through this observation slit (8) by means of a line camera (2).Type: ApplicationFiled: July 2, 2008Publication date: January 8, 2009Inventors: Stephan Krebs, Alfred Eder, Juergen Eisen, Lars Zwerger
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Publication number: 20080173504Abstract: A device for the brake application of a motor vehicle comprising a master cylinder and a pneumatic brake booster, with one of the pistons of the master cylinder having a stepped design with two differently sized hydraulically active effective surfaces, and change-over of the effective surfaces takes place by means of a valve assembly upon failure of the brake booster. An annular chamber, delimited by the stepped piston and the housing, is connectable by means of the valve assembly either to the pressure chamber associated with the stepped piston or to a pressure fluid reservoir. The valve assembly comprises a first and a second valve, which are switchable depending on the pressure of the working chamber of the brake booster. The first valve in its activated position connects the pressure chamber to the annular chamber, and the second valve in its activated position closes the connection between the annular chamber and the pressure fluid reservoir.Type: ApplicationFiled: April 11, 2006Publication date: July 24, 2008Applicant: Continental Teves AG & Co. oHGInventors: Peter Drott, Michael Vogt, Stephan Krebs
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Patent number: 7152406Abstract: The invention relates to a master cylinder with a pressure chamber formed in a housing of the master cylinder and a reservoir bore for accommodating a pressure fluid reservoir, a valve with a closing element being provided which due to a pressure difference prevailing between the pressure chamber and the pressure fluid reservoir can be moved into an opening position or a closing position, the valve in its opening position allowing a pressure fluid flow from the pressure fluid reservoir into the pressure chamber and throttling or preventing, in its closing position, a pressure fluid flow from the pressure chamber into the pressure fluid reservoir. Means are provided which maintain the closing body in its opening position when it is acted upon by a closing pressure difference during vacuum filling of the brake system.Type: GrantFiled: July 30, 2003Date of Patent: December 26, 2006Assignee: Continental Teves AG & Co. oHGInventors: Holger von Hayn, Jürgen Schonlau, Manfred Rüffer, Wolfgang Ritter, Milan Klimes, Torsten Queisser, Ralf Jakobi, Michael Vogt, Dieter Merkel, Bernhard Hammes, Hans-Jörg Feigel, Jose Gonzalez, Stephan Krebs, Oliver Kugland, Thomas Sellinger, Guido Schell
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Patent number: 7032497Abstract: Vacuum brake booster for motor vehicles comprising a booster housing whose interior is subdivided by a movable wall into a vacuum chamber and a working chamber, a control valve that controls a pressure difference acting upon the movable wall and is accommodated in a control housing that carries the movable wall, said control valve being composed of two concentrically arranged sealing seats and an elastically deformable valve member, wherein the control housing includes a cavity through which a cross member extends and delimits the axial movability of a valve piston relative to the control housing, and the cross member includes at least one projection made of an elastic material in the area where the cross member rests against the booster housing. At least one projection made of an elastic material is provided in the area of points of abutment between the control housing and the cross member.Type: GrantFiled: January 24, 2003Date of Patent: April 25, 2006Assignee: Continental Teves AG & Co. oHGInventors: Stephan Krebs, Wilfried Wagner, Hans-Jörg Feigel, Holger von Hayn, Jürgen Schonlau, Manfred Rüffer, Wolfgang Ritter, Milan Klimes, Torsten Queisser
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Publication number: 20060001404Abstract: A battery pack (2) for an associated hand-held electric machine tool (1) and for an associated charging device (13) including an analog temperature sensor (3) with a negative temperature coefficient and a temperature measuring interface (4) accessible from the outside. Battery protection electronics (5) arranged in the hand-held electric machine tool (1) and in the charging device (13), which have a battery protection logic (6) and a power switch (8) that is arranged in the circuit path (7) of the battery pack (2) can be influenced. The battery pack (2) is provided with an emergency protection circuit (10), which is connected in parallel with the analog temperature sensor (3) and which, in emergency situations, can actively reduce the total resistance (R) measurable from the outside via the temperature measuring interface (4).Type: ApplicationFiled: June 29, 2005Publication date: January 5, 2006Inventors: Bernd Ziegler, Bernd Heigl, Stephan Krebs
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Publication number: 20050269180Abstract: The invention relates to a master cylinder, in particular for a hydraulic brake system, with at least one pressure chamber formed in a housing of the master cylinder and at least one reservoir bore for accommodating a pressure fluid reservoir, a valve with a closing element being provided which due to a pressure difference prevailing between the pressure chamber and the pressure fluid reservoir can be moved into an opening position or a closing position, the valve in its opening position allowing a pressure fluid flow from the pressure fluid reservoir into the pressure chamber and throttling or preventing, in its closing position, a pressure fluid flow in the opposite direction to the pressure fluid flow from the pressure chamber into the pressure fluid reservoir.Type: ApplicationFiled: July 30, 2003Publication date: December 8, 2005Inventors: Holger Von Hayn, Jurgen Schonlau, Manfred Ruffer, Wolfgang Ritter, Milan Klimes, Torsten Queisser, Ralf Jakobi, Michael Vogt, Dieter Merkel, Bernhard Hammes, Hans-Jorg Feigel, Jose Gonzalez, Stephan Krebs, Oliver Kugland, Thomas Sellinger, Guido Schell
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Publication number: 20050039596Abstract: Vacuum brake booster for motor vehicles comprising a booster housing 7 whose interior is subdivided by a movable wall 4 into a vacuum chamber 30 and a working chamber 20, a control valve 1 that controls a pressure difference acting upon the movable wall 4 and is accommodated in a control housing 2 that carries the movable wall 4, said control valve being composed of two concentrically arranged sealing seats 9, 10 and an elastically deformable valve member 11, wherein the control housing 2 includes a cavity 40 through which a cross member 60 extends and delimits the axial movability of a valve piston 16 relative to the control housing 2, and the cross member 60 includes at least one projection 62, 80 made of an elastic material in the area where the cross member 60 rests against the booster housing 7. The core of the invention is that at least one projection 66, 84, 85, 88, 90 made of an elastic material is provided in the area of points of abutment between the control housing 2 and the cross member 60.Type: ApplicationFiled: January 24, 2003Publication date: February 24, 2005Inventors: Stephan Krebs, Wilfried Wagner, Hans-Jorg Feigel, Holger von Hayn, Jurgen Schonlau, Manfred Ruffer, Wolfgang Ritter, Milan Klimes, Torsten Queisser
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Patent number: 5546916Abstract: A method and an apparatus are provided for adapting air values from a substitute performance graph to currently prevailing variables of state of ambient air. The air values are used for controlling mixture preparation if pulsations of air occur in an intake tube of an internal combustion engine instead of using measured values supplied by an air meter. The air values are adapted by multiplying the air values by an adaptation factor. In one embodiment the adaptation factor is calculated by dividing a measured value supplied by the air meter in the intake tube of the internal combustion engine by an air value taken from the substitute performance graph and subjecting the adaptation factor to sliding averaging, at times when no pulsations are present; and using a lambda-control-average value as the adaptation factor and subjecting the adaptation factor to sliding averaging, at times when pulsations are present.Type: GrantFiled: January 30, 1995Date of Patent: August 20, 1996Assignee: Siemens AktiengesellschaftInventors: Michael Sudholt, Manfred Wier, Stephan Krebs, Bernhard Bauer, Wolfgang Reupke