Patents by Inventor William C. Kruckemeyer

William C. Kruckemeyer 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: 8327984
    Abstract: A magnetorheolgical (MR) damper includes a piston assembly having a primary channel disposed along a longitudinal axis and contained in a cylinder. MR fluid is also contained in the cylinder. The piston assembly having a primary channel, or primary channel MR piston assembly, includes a piston body having a first end axially spaced from a second end and defining a hole therethrough. The primary channel is defined in an outer body surface of the piston body from the hole at the second end to a coil groove in the outer body surface about the axis. A secondary channel is defined in the outer body surface from the coil groove towards the first end to improve MR damper force performance at low primary channel MR piston assembly velocities.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: December 11, 2012
    Assignee: BWI Company Limited S.A.
    Inventors: Robert T. Foister, Thomas W. Nehl, William C. Kruckemeyer, Oliver Raynauld
  • Patent number: 8286763
    Abstract: A magnetorheological (MR) fluid-based device including an MR piston assembly. The MR piston assembly includes a ferromagnetic MR piston core and an electric coil. The MR piston core has a central longitudinal axis and has an outer circumferential surface substantially coaxially aligned with the central longitudinal axis. The electric coil is positioned in the MR piston core and is substantially coaxially aligned with the central longitudinal axis. A portion, or at least a portion, of the electric coil is buried in the MR piston core under the outer circumferential surface.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: October 16, 2012
    Assignee: BWI Company Limited S.A.
    Inventors: Thomas Wolfgang Nehl, Alexander A. Alexandridis, Robert T. Foister, William C. Kruckemeyer, Fang Deng
  • Publication number: 20110100775
    Abstract: A magnetorheolgical (MR) damper includes a piston assembly having a primary channel disposed along a longitudinal axis and contained in a cylinder. MR fluid is also contained in the cylinder. The piston assembly having a primary channel, or primary channel MR piston assembly, includes a piston body having a first end axially spaced from a second end and defining a hole therethrough. The primary channel is defined in an outer body surface of the piston body from the hole at the second end to a coil groove in the outer body surface about the axis. A secondary channel is defined in the outer body surface from the coil groove towards the first end to improve MR damper force performance at low primary channel MR piston assembly velocities.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 5, 2011
    Applicant: DELPHI TECHNOLOGIES, INC.
    Inventors: Robert T. Foister, Thomas W. Nehl, William C. Kruckemeyer, Oliver Raynauld
  • Publication number: 20090188763
    Abstract: A magnetorheological (MR) fluid-based device including an MR piston assembly. The MR piston assembly includes a ferromagnetic MR piston core and an electric coil. The MR piston core has a central longitudinal axis and has an outer circumferential surface substantially coaxially aligned with the central longitudinal axis. The electric coil is positioned in the MR piston core and is substantially coaxially aligned with the central longitudinal axis. A portion, or at least a portion, of the electric coil is buried in the MR piston core under the outer circumferential surface.
    Type: Application
    Filed: January 29, 2008
    Publication date: July 30, 2009
    Inventors: Thomas Wolfgang Nehl, Alexander A. Alexandridis, Robert T. Foister, William C. Kruckemeyer, Fang Deng
  • Patent number: 7307371
    Abstract: An actuator having a housing that defines an interior volume and a primary driver that includes either a piezoelectric element or a magnetorestrictive element. The primary driver has first and second opposing ends and defines a longitudinal length therebetween. The first end of the primary driver is bearingly engaged with a reaction surface that is fixed relative to the housing. The second end of the primary driver longitudinally moves a bearing surface that partially defines a closed working chamber having a fixed quantity of an incompressible medium. An actuating rod extends through an orifice in the housing and has a first end projecting outwardly and a second end disposed within the working chamber. The cross sectional area of the orifice is less than the effective area of the bearing surface whereby the travel distance of the rod is amplified relative to the change in length of the primary driver.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: December 11, 2007
    Assignee: Delphi Technologies, Inc.
    Inventors: Eric L. Jensen, William C. Kruckemeyer
  • Patent number: 7240754
    Abstract: A suspension system having a frame, a cab having a front portion pivotally mounted to the frame and at least one actuator mounted between a rear portion of the cab and the frame. A position sensor is mounted adjacent the rear portion of the cab for generating a first signal indicating a position of the cab relative to the frame, an accelerometer is mounted to the frame for generating a second signal indicating an acceleration of the frame relative to gravity and an electronic control receives the first and second signals from the position sensor and the accelerometer and generates a control signal for controlling the actuator in response to the first and second signals.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: July 10, 2007
    Assignee: Delphi Technologies, Inc.
    Inventors: David J. Barta, William C. Kruckemeyer, Todd A. Bishop, Stephan A. Lubbers
  • Patent number: 7229303
    Abstract: A connector assembly (10) is provided including a first connector (12) and a second connector (14) configured to mateably engage the first connector (12). The first connector (12) includes a housing (16), a conductor assembly (18) positioned within the housing and projecting from housing, and a resilient seal member (30) enclosing an interface between the housing (16) and the portion of the conductor assembly projecting from the housing. The second connector (14) includes an outer contact (60), an inner contact (62) nested within a portion of the outer contact (60), and a housing (64) containing the inner and outer contacts. Conductors of the conductor assembly (18) of the first connector (12) engage the outer (60) and inner (62) contacts of the second connector (14). Another resilient seal member (45) includes a flexible skirt (50) formed at an end portion thereof.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: June 12, 2007
    Assignee: Delphi Technologies, Inc.
    Inventors: Michel J. Vermoesen, William C. Kruckemeyer, Robert A. Neal, Kathleen Murphy
  • Patent number: 7077226
    Abstract: The invention is a suspension system, typically for use between a cab and a truck frame, includes a strut module having a strut and an air spring, and a control module, connected to a source of pressurized air, for sensing a distance between the cab and truck frame and selectively pressurizing the air spring in response to changes in that distance. Preferably, the strut is a McPherson-type strut and the air spring encloses at least a portion of the strut to provide a compact assembly and includes a three point connection to the cab and frame to resist relative lateral movement between the cab and frame. The strut also preferably is a magnetorheological-type damper so that the control module can adjust the damping characteristics of the strut to optimize rider comfort.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: July 18, 2006
    Assignee: Delphi Technologies,Inc.
    Inventors: Michael L. Oliver, Todd A. Bishop, Eric L. Jensen, William C. Kruckemeyer
  • Patent number: 7077227
    Abstract: A suspension system, typically for use between a cab and an associated truck frame, including a s strut module having a strut, an air spring and a control module. The control module is connected to a source of pressurized air, is integral with the strut and includes a height sensor for sensing a distance between the cab and truck frame. The integral control module selectively pressurizes the air spring in response to changes in that distance. Preferably, the strut is a magnetorheological, McPherson-type strut and the air spring encloses at least a portion of the strut to provide a compact assembly. The strut damping characteristics are varied by the control module to provide optimal ride characteristics. The strut module includes a three-point connection to the cab and frame to resist relative lateral movement between the cab and frame.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: July 18, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Michael L. Oliver, William C. Kruckemeyer, Eric L. Jensen, Todd A. Bishop
  • Patent number: 6902045
    Abstract: A vehicle suspension system comprising a damper having a lower mount end and an upper mount end and a spring having a lower end and an upper end positioned around the damper. The spring and the damper have a common central axis. An adjustment assembly is operably attached at the lower mount end of the damper and the lower end of the spring is operably attached to and supported by the adjustment assembly thereby allowing the position of the lower end of the spring to continuously vary along the central axis of the damper. The method comprising supporting a lower end of a spring positioned around a damper and moving the end of the spring for adjusting vehicle ride height.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: June 7, 2005
    Assignee: Delphi Technologies, Inc.
    Inventors: Michael L. Oliver, William C. Kruckemeyer
  • Patent number: 6863163
    Abstract: A suspension damper comprises a cylinder tube and a control partition. The cylinder tube is disposed within a reservoir tube to define a fluid reservoir, and has at least one first hole. The control partition is disposed in the fluid reservoir, and communicates with the at least one hole.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: March 8, 2005
    Assignee: Delphi Technologies, Inc.
    Inventors: Michael L. Oliver, William C. Kruckemeyer, Todd A. Bishop, Eric L. Jensen
  • Patent number: 6837344
    Abstract: A damper includes a piston that carries a relatively compact control valve for controlling fluid flow through the piston. The control valve provides a variable amount of damping by regulating damper fluid flow between the extension chamber and the compression chamber of the damper during extension and compression strokes. Pressure regulation across the piston is controlled through a flow path as determined by the control valve. The damping force of the damper varies depending upon the loading conditions of the vehicle. The control valve is air pressure actuated to adjust the damping force and control the flow of fluid in the flow path. The piston and rod assembly include unique features such as a seal plate design, and spring retainer that aid in the efficient and reliable assembly in a commercial production setting.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: January 4, 2005
    Assignee: Delphi Technologies, Inc.
    Inventors: Troy A. Miller, Michael L. Oliver, William C. Kruckemeyer
  • Patent number: 6805381
    Abstract: A seatbelt retractor is operably coupled to a belt dereeling retarder mechanism which utilizes a magnetorheological fluid and a coil for imposing a magnetic field on the fluid to selectively change the fluid properties and a braking or retarding effect imposed on the belt retractor during dereeling or payout of the belt. The retarder may include a piston coupled to a rotatable shaft coupled to the belt retractor reel and displacing fluid through the magnetic field in response to actuation of the belt. Alternate embodiments include a multiple disc brake coupled to the retractor reel through a gear drive speed increaser or a cylindrical housing and core member defining an annular space occupied by the magnetorheological fluid and connected to the belt retractor reel through a speed increasing gear drive.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: October 19, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Ronald G. Smith, Jr., Michael L. Oliver, William C. Kruckemeyer
  • Publication number: 20040195745
    Abstract: A vehicle suspension system comprising a damper having a lower mount end and an upper mount end and a spring having a lower end and an upper end positioned around the damper. The spring and the damper have a common central axis. An adjustment assembly is operably attached at the lower mount end of the damper and the lower end of the spring is operably attached to and supported by the adjustment assembly thereby allowing the position of the lower end of the spring to continuously vary along the central axis of the damper. The method comprising supporting a lower end of a spring positioned around a damper and moving the end of the spring for adjusting vehicle ride height.
    Type: Application
    Filed: April 3, 2003
    Publication date: October 7, 2004
    Applicant: DELPHI TECHNOLOGIES INC.
    Inventors: Michael L. Oliver, William C. Kruckemeyer
  • Publication number: 20040129468
    Abstract: A suspension system, typically for use between a cab and an associated truck frame, including a s strut module having a strut, an air spring and a control module. The control module is connected to a source of pressurized air, is integral with the strut and includes a height sensor for sensing a distance between the cab and truck frame. The integral control module selectively pressurizes the air spring in response to changes in that distance. Preferably, the strut is a magnetorheological, McPherson-type strut and the air spring encloses at least a portion of the strut to provide a compact assembly. The strut damping characteristics are varied by the control module to provide optimal ride characteristics. The strut module includes a three-point connection to the cab and frame to resist relative lateral movement between the cab and frame.
    Type: Application
    Filed: August 21, 2003
    Publication date: July 8, 2004
    Inventors: Michael L. Oliver, William C. Kruckemeyer, Eric L. Jensen, Todd A. Bishop
  • Patent number: 6758041
    Abstract: A brake apparatus and method utilize an electric power brake booster for operating a push rod actuated hydraulic master cylinder. The existing vehicle electrical system provides electric power for the power brake booster, thus eliminating the need for engine driven or auxiliary pressure/vacuum sources. The electric power brake booster includes an electrically powered actuator having an output shaft adapted for operative connection to the master cylinder, and an input for receipt of a signal indicative of force applied to the push rod. The electrically powered actuator augments the force applied to the push rod in response to the signal indicative of the force applied to the push rod. The booster may include a sensor for sensing force applied to the push rod and generating the signal indicative of the force applied to the push rod.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: July 6, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Todd A. Bishop, William C. Kruckemeyer, David J. Barta
  • Publication number: 20040104061
    Abstract: The invention is a suspension system, typically for use between a cab and a truck frame, includes a strut module having a strut and an air spring, and a control module, connected to a source of pressurized air, for sensing a distance between the cab and truck frame and selectively pressurizing the air spring in response to changes in that distance. Preferably, the strut is a McPherson-type strut and the air spring encloses at least a portion of the strut to provide a compact assembly and includes a three point connection to the cab and frame to resist relative lateral movement between the cab and frame. The strut also preferably is a magnetorheological-type damper so that the control module can adjust the damping characteristics of the strut to optimize rider comfort.
    Type: Application
    Filed: August 21, 2003
    Publication date: June 3, 2004
    Inventors: Michael L. Oliver, Todd A. Bishop, Eric L. Jensen, William C. Kruckemeyer
  • Publication number: 20040050045
    Abstract: A brake apparatus and method utilize an electric power brake booster for operating a push rod actuated hydraulic master cylinder. The existing vehicle electrical system provides electric power for the power brake booster, thus eliminating the need for engine driven or auxiliary pressure/vacuum sources. The electric power brake booster includes an electrically powered actuator having an output shaft adapted for operative connection to the master cylinder, and an input for receipt of a signal indicative of force applied to the push rod. The electrically powered actuator augments the force applied to the push rod in response to the signal indicative of the force applied to the push rod. The booster may include a sensor for sensing force applied to the push rod and generating the signal indicative of the force applied to the push rod.
    Type: Application
    Filed: September 12, 2002
    Publication date: March 18, 2004
    Applicant: DELPHI TECHNOLOGIES INC.
    Inventors: Todd A. Bishop, William C. Kruckemeyer, David J. Barta
  • Publication number: 20040046336
    Abstract: A suspension system for a vehicle. A control arm is attachable to the vehicle frame by a first bushing and by a second bushing and is attachable to the knuckle by a ball joint. A torsion spring assembly has a torsion tube and a torsion bar positioned within the torsion tube. A first end portion of the torsion bar is attached to a first end portion of the torsion tube, and a second end portion of the torsion bar extends beyond a second end of the torsion tube and is attached to the control arm. No portion of the torsion tube is immobilized with respect to the frame. A moment bar has a first end portion attached to the torsion tube and has a second end portion attachable to the frame.
    Type: Application
    Filed: August 20, 2003
    Publication date: March 11, 2004
    Inventors: Eric L. Jensen, Todd A. Bishop, William C. Kruckemeyer, Mark O. Bodie, David J. Barta
  • Publication number: 20040040806
    Abstract: A suspension damper comprises a cylinder tube and a control partition. The cylinder tube is disposed within a reservoir tube to define a fluid reservoir, and has at least one first hole. The control partition is disposed in the fluid reservoir, and communicates with the at least one hole.
    Type: Application
    Filed: September 4, 2002
    Publication date: March 4, 2004
    Applicant: DELPHI TECHNOLOGIES INC.
    Inventors: Michael L. Oliver, William C. Kruckemeyer, Todd A. Bishop, Eric L. Jensen