Patents by Inventor Hendrik Anne Mol

Hendrik Anne Mol 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).

  • Publication number: 20100251810
    Abstract: A combination of a bearing component and a sensor, wherein: (a) at least a portion of the bearing component is formed from a bearing steel; (b) the sensor comprises a sensor element and a support therefor; (c) at least a portion of the support is formed from a low carbon steel comprising no more than 0.2 wt. % carbon or from nickel or an alloy thereof or from titanium or an alloy thereof; and (d) the bearing component and the support are welded or brazed to one another via said respective portions.
    Type: Application
    Filed: October 31, 2008
    Publication date: October 7, 2010
    Applicant: AKTIEBOLAGET SKF
    Inventors: Hendrik Anne Mol, Johannes Franciscus Van Den Sanden
  • Publication number: 20090216397
    Abstract: A device for attachment to a motor vehicle wheel includes an arrangement which, during movement or driving of the motor vehicle, detects vibrations which occur, evaluates the vibrations for an incipient fault state of a wheel bearing of the vehicle wheel, and delivers a signal when the monitoring or evaluation yields or indicates the incipient fault state.
    Type: Application
    Filed: May 4, 2009
    Publication date: August 27, 2009
    Applicant: AB SKF
    Inventors: Arno Stubenrauch, Jens Graf, Christian Knoche, Hendrik Anne Mol, Russell Bugden
  • Patent number: 7543499
    Abstract: A device for attachment to a motor vehicle wheel includes an arrangement which, during movement or driving of the motor vehicle, detects vibrations which occur, evaluates the vibrations for an incipient fault state of a wheel bearing of the vehicle wheel, and delivers a signal when the monitoring or evaluation yields or indicates the incipient fault state.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: June 9, 2009
    Assignee: AB SKF
    Inventors: Arno Stubenrauch, Jens Graf, Christian Knoche, Hendrik Anne Mol, Russell Bugden
  • Patent number: 7444888
    Abstract: Method and sensor arrangement for determining a contact force vector acting on a rolling element hearing in operation. Sensor signals are received from a plurality of sensors measuring performance characteristics of the rolling element bearing. The received sensor signals are processed to determine the contact force vector. The plurality of sensors are arranged to measure a bearing component deformation, and the step of processing comprises the step of determining the contact force vector using an inverse transformation of a finite element analysis model which describes the rolling element bearing. The finite element analysis model is simplified using at least one generalized mode shape, the at least one generalized mode shape being a mathematical description of a natural mode deformation of a component of the rolling element bearing, such as the inner or outer ring.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: November 4, 2008
    Assignee: AB SKF
    Inventors: Hendrik Anne Mol, Gerrit Cornelis Van Nijen
  • Patent number: 7389701
    Abstract: Method and sensor arrangement for determining a load vector acting on a rolling element bearing (1) in operation. A plurality of N sensors (8) are provided which measure displacement and/or strain for determining displacement and/or strain in one of the elements (5, 6, 7) of the rolling element bearing (1). Furthermore, a mode shape coefficients calculator (11) is provided, connected to the plurality of N sensors (8), for determining a deformation of the element (5, 6, 7) by calculating amplitude and phase of N/2 Fourier terms representing at least one radial mode shape of the ring shape element (5, 6, 7). Also, a bearing neural network (12) is present, connected to the mode shape coefficients calculator (11), the bearing neural network (12) being trained to provide the load vector on the rolling element bearing (1) from the N/2 Fourier terms.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: June 24, 2008
    Assignee: AB SKF
    Inventor: Hendrik Anne Mol
  • Patent number: 7183760
    Abstract: Disclosed is a rotational speed sensor comprising a rotatable ring. The rotational speed sensor has K magnetic pole pairs distributed angularly over the rotatable ring. Also, sensors are positioned relative to the rotatable ring such that a varying magnetic field is detected. The sensors comprise a first pair being positioned 2?L/K radians apart. The sensors further comprise a second pair being positioned 2?M/K radians apart. The first pair of sensors and second pair of sensors are positioned at a relative position of (2?/K)*((2n?1)/2 radians. L, M are integers between one and K and n is an integer greater than one.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: February 27, 2007
    Assignee: AB SKF
    Inventors: Hendrik Anne Mol, Johannes Andrianus Maria Duits
  • Patent number: 6845672
    Abstract: Sensor assembly for measuring a load on a bearing having at least one bearing ring (11), the at least one bearing being provided with a cavity (12) for holding the sensor assembly. The sensor assembly comprises a series mounting between opposing sides (17, 18) of the cavity (12), the series mounting comprising a piezoelectric plate (16) and a spring (19) with spring stiffness k. Alternatively, the sensor assembly further comprises a body (14) with mass in mounted between the piezoelectric plate (16) and the spring (13), to allow simultaneous load measurement and health monitoring.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: January 25, 2005
    Assignee: AB SKF
    Inventors: Hendrik Anne Mol, Simon Van Ballegooij
  • Patent number: 5698788
    Abstract: A method for analysing regularly recurring mechanical vibrations comprises the steps of plotting an amplitude/time spectrum associated with the vibrations, dividing the amplitude/time spectrum into time intervals shorter than the shortest time lapse between two consecutive excitations, subjecting those parts of the amplitude/time spectrum defined by each time interval to a Fourier transformation in order to obtain an amplitude/vibration-frequency interval spectrum associated with each time interval, and subjecting those amplitudes in each amplitude/vibration frequency interval spectrum associated with certain vibration frequencies to a Fourier transformation in order to obtain an excitation-frequency spectrum associated with the respective vibration frequency.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: December 16, 1997
    Assignee: SKF Industrial Trading & Development Company B.V.
    Inventors: Hendrik Anne Mol, Gerrit Cornelis Van Nijen