Patents by Inventor Ralf Erben

Ralf Erben 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).

  • Patent number: 9732812
    Abstract: A hydraulic vehicle brake has a piston which acts upon a friction element and is displaceable by a rotationally drivable spindle/nut arrangement into an actuating position. A spindle of the spindle/nut arrangement is secured against rotation and movable by the spindle nut either into abutment against the piston or away from the piston. The spindle nut comprises a first part, which at least close to one end thereof is configured for screw-type engagement with the spindle, and a second part, configured for rotationally driving the first part and connected to the first part by a rotationally fixed connection. The first part at an other end thereof is provided with a support surface for the rotatable, axial mounting of the spindle/nut arrangement and the second part at the other end extends into the first part.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: August 15, 2017
    Assignee: Lucas Automotive GmbH
    Inventors: Wilfried Giering, Ralf Erben
  • Patent number: 8978837
    Abstract: The invention relates to a disc brake for a motor vehicle having a housing, a piston which is movable in the housing along a longitudinal axis and a nut-spindle arrangement which acts on the piston or can be brought into engagement with this, wherein the nut-spindle arrangement is arranged in the housing and is workingly supported via a bearing arrangement on a support surface of the housing. In order to increase the service life of the bearing arrangement, the support surface is formed by a defined contact surface which projects with respect to an adjacent housing region and against which the bearing arrangement bears.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: March 17, 2015
    Assignee: Lucas Automotive GmbH
    Inventors: Ralf Erben, Michael Herberts
  • Publication number: 20120325597
    Abstract: A hydraulic vehicle brake has a piston which acts upon a friction element and is displaceable by a rotationally drivable spindle/nut arrangement into an actuating position. A spindle of the spindle/nut arrangement is secured against rotation and movable by the spindle nut either into abutment against the piston or away from the piston. The spindle nut comprises a first part, which at least close to one end thereof is configured for screw-type engagement with the spindle, and a second part, configured for rotationally driving the first part and connected to the first part by a rotationally fixed connection. The first part at an other end thereof is provided with a support surface for the rotatable, axial mounting of the spindle/nut arrangement and the second part at the other end extends into the first part.
    Type: Application
    Filed: February 23, 2011
    Publication date: December 27, 2012
    Applicant: LUCAS AUTOMOTIVE GMBH
    Inventors: Wilfried Giering, Ralf Erben
  • Patent number: 8322495
    Abstract: A hydraulic vehicle brake having an optional locking device is described. The locking device is disposed inside a hydraulic chamber that is delimited by a brake piston. For reducing the hydraulic fluid intake, an incompressible filling body is provided inside the hydraulic chamber.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: December 4, 2012
    Assignee: Lucas Automotive GmbH
    Inventors: Ralf Leiter, Ralf Erben, Christian Dilla
  • Publication number: 20100187049
    Abstract: The invention relates to a disc brake for a motor vehicle having a housing, a piston which is movable in the housing along a longitudinal axis and a nut-spindle arrangement which acts on the piston or can be brought into engagement with this, wherein the nut-spindle arrangement is arranged in the housing and is workingly supported via a bearing arrangement on a support surface of the housing. In order to increase the service life of the bearing arrangement, the support surface is formed by a defined contact surface which projects with respect to an adjacent housing region and against which the bearing arrangement bears.
    Type: Application
    Filed: June 19, 2008
    Publication date: July 29, 2010
    Inventors: Ralf Erben, Michael Herberts
  • Publication number: 20090211858
    Abstract: A hydraulic vehicle brake having an optional locking device is described. The locking device is disposed inside a hydraulic chamber that is delimited by a brake piston. For reducing the hydraulic fluid intake, an incompressible filling body is provided inside the hydraulic chamber.
    Type: Application
    Filed: October 17, 2006
    Publication date: August 27, 2009
    Inventors: Ralf Leiter, Ralf Erben, Christian Dilla
  • Publication number: 20080196984
    Abstract: The invention relates to a parking brake device comprising a spring element and an actuating element that acts upon the spring element, wherein by applying an actuating force to the actuating element the parking brake device is transferrable between a brake-inactive release position and a brake-active parking position. In the invention, it is provided that the spring element is biased in the release position and that the spring element upon transfer from the release position to the parking position yields only upon attainment of an actuating-force threshold value that is determined by the bias.
    Type: Application
    Filed: December 28, 2007
    Publication date: August 21, 2008
    Inventors: Ralf Leiter, Ralf Erben, Gregor Poertzgen
  • Patent number: 7370735
    Abstract: In a vehicle brake having a brake piston accommodated in a housing, a blocking device for securing the brake piston inside the housing and an actuating device for controlling the blocking device, it is provided that the brake piston together with the housing delimits a fluid chamber, which is chargeable with hydraulic fluid, so that the brake piston for actuating the vehicle brake is displaceable hydraulically inside the housing along a piston longitudinal axis, that moreover the blocking device comprises a ramp arrangement and a blocking element that is displaceable relative to the housing, and that by means of the actuating device the blocking element in interaction with the ramp arrangement for securing the brake piston inside the housing is displaceable and connectable to the brake piston.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: May 13, 2008
    Assignee: Lucas Automotive GmbH
    Inventors: Leo Gilles, Marcus Janson, Ralf Leiter, Gregor Poertzgen, Ralf Erben, Karl-Heinz Schaust, Manfred Meyer
  • Patent number: 7227324
    Abstract: A method for controlling an electrically actuable parking brake is described. In this method the cutoff current of the electric motor is varied to compensate for example for changes in the application force associated with aging or wear or for changes in the application force due to changes in the resistance and/or temperature of an electric motor.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: June 5, 2007
    Assignee: Lucas Automotive GmbH
    Inventors: Ralf Erben, Ralf Kinder, Ralf Leiter, Gregor Poertzgen
  • Publication number: 20060261764
    Abstract: A method for controlling an electrically actuable parking brake is described. In this method the cutoff current of the electric motor is varied to compensate for example for changes in the application force associated with aging or wear or for changes in the application force due to changes in the resistance and/or temperature of an electric motor.
    Type: Application
    Filed: June 20, 2006
    Publication date: November 23, 2006
    Inventors: Ralf Erben, Ralf Kinder, Ralf Leiter, Gregor Poertzgen
  • Publication number: 20060054431
    Abstract: In a vehicle brake having a brake piston accommodated in a housing, a blocking device for securing the brake piston inside the housing and an actuating device for controlling the blocking device, it is provided that the brake piston together with the housing delimits a fluid chamber, which is chargeable with hydraulic fluid, so that the brake piston for actuating the vehicle brake is displaceable hydraulically inside the housing along a piston longitudinal axis, that moreover the blocking device comprises a ramp arrangement and a blocking element that is displaceable relative to the housing, and that by means of the actuating device the blocking element in interaction with the ramp arrangement for securing the brake piston inside the housing is displaceable and connectable to the brake piston.
    Type: Application
    Filed: November 7, 2005
    Publication date: March 16, 2006
    Inventors: Leo Gilles, Marcus Janson, Ralf Leiter, Gregor Poertzgen, Ralf Erben, Karl-Heinz Schaust, Manfred Meyer
  • Publication number: 20050252736
    Abstract: The invention relates to a parking brake device comprising a spring element and an actuating element that acts upon the spring element, wherein by applying an actuating force to the actuating element the parking brake device is transferrable between a brake-inactive release position and a brake-active parking position. In the invention, it is provided that the spring element is biased in the release position and that the spring element upon transfer from the release position to the parking position yields only upon attainment of an actuating-force threshold value that is determined by the bias.
    Type: Application
    Filed: July 19, 2005
    Publication date: November 17, 2005
    Inventors: Ralf Leiter, Ralf Erben, Gregor Poertzgen
  • Patent number: 6431330
    Abstract: The invention relates to a brake arrangement for a land vehicle comprising the following characteristics: an electric motor with a downstream connected (reduction) gear which acts on the friction pads of a brake arrangement, with the gear being designed self-locking, and an actuation mechanism by means of which the self-locking function can be cancelled or established.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: August 13, 2002
    Assignee: Lucas Industries public limited company
    Inventors: Gregor Poertzgen, Karl-Friedrich W├Ârsdorfer, Ralf Erben, Guido Zenzen
  • Patent number: 6394235
    Abstract: A hydraulic vehicle brake (10) has a hydraulic chamber (16) which sealingly accommodates a brake piston (18) which can slide along an axis (A). The brake piston (18) acts upon a friction member and can be moved by means of hydraulic pressure which is supplied to the hydraulic chamber (16) into an actuating position in which it presses the friction member against a rotor (brake disk, brake drum, etc.). In order to be able to use the vehicle brake (10) besides its function as a hydraulic service brake also as a parking brake, a spindle/nut arrangement (24) is provided which is driven by an electric motor (42) and arranged coaxial to the axis (A) of the brake piston (18), the nut (30) of which arrangement (24) is secured against rotation, and by rotation of the spindle (26) as a function of the sense of rotation can either be moved into contact with the brake piston (18) or be moved away from the brake piston (18) translatorily along the axis (A).
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: May 28, 2002
    Assignee: Lucas Industries plc
    Inventors: Gregor Poertzgen, Karl Friedrich W├Ârsdorfer, Ralf Erben, Guido Zenzen
  • Patent number: 4860858
    Abstract: In a spot-type disc brake for motor vehicles a floating caliper is guided displaceably on a brake support by means of sliding pins (26). Inner and outer brake pads are likewise displaceably mounted parallel to the sliding pins with respect to the brake support. On at least one of the sliding pins a resetting means (50) with a spring (52) is provided which is arranged around the sliding pin as part of a frictionally locking connection between the sliding pin and a bore guiding said pin. The bore (24) comprises at the end from which the sliding pin is inserted into said bore a widening (54) into which the spring (52) is installed with axial bias. The spring or a member cooperating therewith is in engagement with an outer surface of the sliding pin.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: August 29, 1989
    Assignee: Lucas Industries public limited company
    Inventors: Ralf Erben, Albert Langert, Frank-Wilhelm Madzgalla, Hans-Georg Madzgalla
  • Patent number: 4678065
    Abstract: An adjustment device for a brake actuator including a spindle (20) is arranged between an hydraulically movable piston (12) and a mechanically movable tappet (18). The spindle (20) is formed at its outside with left- and right-hand threads (26) and (28), respectively, on which a collet (22) and an adjusting nut (24), respectively, are threaded in non-self-locking manner or, in other words, reversibly. The collet (22) and the adjusting nut (24) form a conical coupling (25) which, when engaged or closed prevents rotation of the structural members so that the adjustment device acts as a rigid member between the tappet (18) and the piston (12).
    Type: Grant
    Filed: November 19, 1985
    Date of Patent: July 7, 1987
    Assignee: Lucas Industries public limited company
    Inventors: Ralf Erben, Michael F. M. Walden