Patents by Inventor Bernardus Gerardus Van Leeuwen

Bernardus Gerardus Van Leeuwen 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: 9068623
    Abstract: An electromagnetic actuator (100) comprises magnets (109, 111, 113, 115, 11), and a ferromagnetic structure (103) accommodating control conductors (118, 121, 123, 125). The magnets and the structure can move with respect to one another under control of control currents in the control conductors. The magnetic field in a gap (107) between the magnets and the ferromagnetic structure is oriented perpendicular to the direction of relative movement. The structure (103) accommodates damping conductors (127) that form closed loops of an electrically conductive material, different from the ferromagnetic material. The damping conductors (127) provide a damping force induced by the relative movement.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: June 30, 2015
    Assignee: SKF BV
    Inventors: Bart Ludo Jozef Gysen, Johannes Jacobus Hubertus Paulides, Elena Andreevna Lomonova, Laurentiu Encica, Bernardus Gerardus Van Leeuwen
  • Publication number: 20120193179
    Abstract: An electromagnetic actuator (100) comprises magnets (109, 111, 113, 115, 11), and a ferromagnetic structure (103) accommodating control conductors (118, 121, 123, 125). The magnets and the structure can move with respect to one another under control of control currents in the control conductors. The magnetic field in a gap (107) between the magnets and the ferromagnetic structure is oriented perpendicular to the direction of relative movement. The structure (103) accommodates damping conductors (127) that form closed loops of an electrically conductive material, different from the ferromagnetic material. The damping conductors (127) provide a damping force induced by the relative movement.
    Type: Application
    Filed: May 26, 2009
    Publication date: August 2, 2012
    Inventors: Bart Ludo Jozef Gysen, Johannes Jacobus Hubertus Paulides, Elena Andreevna Lomonova, Laurentiu Encica, Bernardus Gerardus Van Leeuwen
  • Patent number: 6920801
    Abstract: Measurement device (1) for measuring the axial and/or radial load on a bearing (10) comprising an inner ring (11), an outer ring (12) and a plurality of rolling elements (13) between the inner and outer ring. The measurement device (1) comprises a sensor ring (3) which may be positioned adjacent to and in close contact with the inner ring (11) or outer ring (12) of the bearing (10), the sensor ring (3) having at least one weakening (2) at its circumference and at least one sensor (5) being positioned in the at least one weakening (2).
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: July 26, 2005
    Assignee: SKF Engineering and Research Centre B.V.
    Inventors: Bernardus Gerardus Van Leeuwen, Eduardus Gerardus Maria Holweg, Frank Wit, Erik Zaaijer, Simon Ballegooij
  • Patent number: 6848557
    Abstract: A clutch actuator unit comprises a housing (8, 9), a screw mechanism and an actuator head which at one end engages the screw mechanism (1, 2) and at the other end has an actuating end (18), which actuator head (16) can be displaced in axial direction by the screw mechanism upon driving the screw mechanism. The actuating end (18) of the actuator head (16) is displaceable in transverse direction with respect to the screw mechanism as well.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: February 1, 2005
    Assignee: SKF Engineering and Research Centre B.V.
    Inventors: Hendrikus Jan Kapaan, Jacobus Zwarts, Bernardus Gerardus Van Leeuwen, Nicolaas Kollaard, Alexander Molenaar, Frédéric Ponson
  • Patent number: 6837818
    Abstract: A continuously variable transmission system comprises a continuously variable transmission having two pulley sets each with two discs defining a V-shaped groove, drive means-for varying the width of said groove and a belt extending between said-pulley sets in the grooves thereof, as well as a forward-reverse control connected to the shaft of one of the pulley sets and a clutch connected to said forward-reverse control, said pulley sets, forward-reverse control and clutch each being provided with a respective actuator. The actuators of the forward-reverse control and of the clutch are of an electromechanical type.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: January 4, 2005
    Assignee: SKF Engineering and Research Centre B.V.
    Inventors: Hendrikus Jan Kapaan, Johannes Albertus Van Winden, Bernardus Gerardus Van Leeuwen, Arno Stubenrauch, Hubert Herbst
  • Publication number: 20040261543
    Abstract: Measurement device (1) for measuring the axial and/or radial load on a bearing (10) comprising an inner ring (11), an outer ring (12) and a plurality of rolling elements (13) between the inner and outer ring. The measurement device (1) comprises a sensor ring (3) which may be positioned adjacent to and in close contact with the inner ring (11) or outer ring (12) of the bearing (10), the sensor ring (3) having at least one weakening (2) at its circumference and at least one sensor (5) being positioned in the at least one weakening (2).
    Type: Application
    Filed: June 23, 2003
    Publication date: December 30, 2004
    Inventors: Bernardus Gerardus Van Leeuwen, Eduardus Gerardys Maria Holweg, Frank Wit, Erik Zaaijer, Simon Ballegooij
  • Publication number: 20040248678
    Abstract: A continuously variable transmission comprises a housing (1) which accommodates two pulley sets (2, 3) and an endless flexible drive element (24) fitted around said pulley sets for transferring a torque, one of said pulley sets being provided with coupling means (14) for an ingoing shaft and the other with coupling means (22) for an outgoing shaft, said pulley sets each comprising two discs (4, 5) enclosing a groove which increases in radially outward direction, and screw drive means (6) for changing the distance between the two discs of each pulley set with the aim of changing the transmission ratio. Each disc is connected to a hub unit (7, 8) comprising a rolling element bearing means (9, 10, 30) for rotatably supporting the disc, each hub unit being axially displaceably supported with respect to the housing.
    Type: Application
    Filed: April 19, 2004
    Publication date: December 9, 2004
    Inventors: Hendrikus Jan Kapaan, Cornelius Petrus Antonius Vissers, Jacobus Zwarts, Bernardus Gerardus Van Leeuwen, Paul Bernard Meaney
  • Patent number: 6689000
    Abstract: A pulley set for a continuously variable transmission unit, comprises a pair of discs accommodated on a shaft, and a screw mechanism which is concentric with respect to said discs and for moving the discs towards and from each other, said discs enclosing a V-shaped groove, for accommodating a belt, said screw mechanism being controllable by a control means. The control means including a motor unit, said motor unit comprising a stator and a rotor, one of said stator and rotor engaging the nut of the screw mechanism, and the other of said stator and rotor engaging the screw of the screw mechanism.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: February 10, 2004
    Assignee: SKF Engineering & Research Centre B.V.
    Inventors: Hendrikus Jan Kapaan, Johannes Albertus Van Winden, Eduardus Gerardus Maria Holweg, Bernardus Gerardus Van Leeuwen
  • Publication number: 20040020741
    Abstract: A clutch actuator unit comprises a housing (8, 9), a screw mechanism and an actuator head which at one end engages the screw mechanism (1, 2) and at the other end has an actuating end (18), which actuator head (16) can be displaced in axial direction by the screw mechanism upon driving the screw mechanism. The actuating end (18) of the actuator head (16) is displaceable in transverse direction with respect to the screw mechanism as well.
    Type: Application
    Filed: December 11, 2002
    Publication date: February 5, 2004
    Inventors: Hendrikus Jan Kapaan, Jacobus Zwarts, Bernardus Gerardus Van Leeuwen, Nicolaas Kollaard, Alexander Molenaar, Frederic Ponson