Patents by Inventor Karl Gebert

Karl Gebert 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: 8661903
    Abstract: A machine has at least two wheels (at least one of them driven) arranged on a base body and connected with a revolving belt. A transmitter and a receiver are arranged on the base body. The transmitter transmits contactless to the belt a transmitted signal having an oscillation frequency, with the receiver from the belt a reflected signal in response to the transmitted signal. An evaluation device connected to the receiver checks if the reflected signal received by the receiver satisfies an acquisition condition indicating that a speed of the belt is in a predetermined speed range. The evaluation device determines, if the acquisition condition is satisfied, a frequency spectrum which is based of the oscillation frequency and the reflected signal in the predetermined speed range and indicative of a mechanical oscillation characteristic of the belt, and generates a control signal based on the evaluated frequency spectrum.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: March 4, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Gunther Bohn, Karl Gebert, Jörg Niedergesaess
  • Patent number: 8397871
    Abstract: A device comprises a rotor element which is connected to a stator element by at least one roller bearing, and a grease storage recipient for lubricating the roller bearing. The supply of grease from the grease storage recipient is controlled by a temperature-dependent expansion element.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: March 19, 2013
    Assignee: AB SKF
    Inventors: Karl Gebert, Helmut Koeberlein
  • Patent number: 8315826
    Abstract: In a diagnostic method for at least one ball bearing, in particular for an angular-contact ball bearing for bearing a rapidly rotating spindle, mechanical vibration caused by the respective angular-contact ball bearing is acquired by at least one vibration sensor and outputted as a corresponding vibration signal. At least one bearing characteristic, fundamental kinematic frequency dependent on a current bearing rotational frequency is determined by computation. A corresponding bearing frequency in a measurement frequency spectrum of the respective vibration signal is determined by measurement. A first diagnostic message is output when at least one of the determined bearing frequencies deviates by a respective prescribed frequency deviation from the corresponding computational fundamental kinematic frequency.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: November 20, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Felix Butz, Karl Gebert
  • Publication number: 20120031187
    Abstract: A machine has at least two wheels (at least one of them driven) arranged on a base body and connected with a revolving belt. A transmitter and a receiver are arranged on the base body. The transmitter transmits contactless to the belt a transmitted signal having an oscillation frequency, with the receiver from the belt a reflected signal in response to the transmitted signal. An evaluation device connected to the receiver checks if the reflected signal received by the receiver satisfies an acquisition condition indicating that a speed of the belt is in a predetermined speed range. The evaluation device determines, if the acquisition condition is satisfied, a frequency spectrum which is based of the oscillation frequency and the reflected signal in the predetermined speed range and indicative of a mechanical oscillation characteristic of the belt, and generates a control signal based on the evaluated frequency spectrum.
    Type: Application
    Filed: February 9, 2011
    Publication date: February 9, 2012
    Applicant: Siemens Aktiengesellschaft
    Inventors: Gunther Bohn, Karl Gebert, Jörg Niedergesaess
  • Patent number: 8026687
    Abstract: A machine having a drive that directly or indirectly excites vibrations in the machine over a frequency range when the drive is connected to the power supply. A sensor detects a time-dependent signal that is characteristic of the excited vibrations. The time-dependent signal is transmitted to a control device that analyzes the frequency of the time-dependent signal and relates the frequency analysis to the excitation that produces the excitation and uses this relationship to determine a state of at least one element of the machine. The control device outputs a message to an operator of the machine on the basis of the state that is determined. Preferably, the control device applies an interference variable that has at least one frequency inside the frequency range to the drive so as to excite vibrations. The interference variable may be a sinusoidal interference variable whose frequency passes through the frequency range, or a pseudobinary interference variable whose spectrum covers the frequency range.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: September 27, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventor: Karl Gebert
  • Publication number: 20100070094
    Abstract: A machine having a drive that directly or indirectly excites vibrations in the machine over a frequency range when the drive is connected to the power supply. A sensor detects a time-dependent signal that is characteristic of the excited vibrations. The time-dependent signal is transmitted to a control device that analyzes the frequency of the time-dependent signal and relates the frequency analysis to the excitation that produces the excitation and uses this relationship to determine a state of at least one element of the machine. The control device outputs a message to an operator of the machine on the basis of the state that is determined. Preferably, the control device applies an interference variable that has at least one frequency inside the frequency range to the drive so as to excite vibrations. The interference variable may be a sinusoidal interference variable whose frequency passes through the frequency range, or a pseudobinary interference variable whose spectrum covers the frequency range.
    Type: Application
    Filed: March 6, 2009
    Publication date: March 18, 2010
    Applicant: Siemens Aktiengesellschaft
    Inventor: KARL GEBERT
  • Patent number: 7677847
    Abstract: A spindle apparatus includes a housing for rotatable support of a spindle. The spindle is sealed by a brush seal in order to prevent fluid, contained in the housing, from escaping and/or to prevent ingress of a medium from outside into the housing.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: March 16, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventor: Karl Gebert
  • Publication number: 20100038175
    Abstract: A device comprises a rotor element which is connected to a stator element by at least one roller bearing, and a grease storage recipient for lubricating the roller bearing. The supply of grease from the grease storage recipient is controlled by a temperature-dependent expansion element.
    Type: Application
    Filed: February 17, 2006
    Publication date: February 18, 2010
    Inventors: Karl Gebert, Helmut Koeberlein
  • Publication number: 20090299663
    Abstract: In a diagnostic method for at least one ball bearing, in particular for an angular-contact ball bearing for bearing a rapidly rotating spindle, mechanical vibration caused by the respective angular-contact ball bearing is acquired by at least one vibration sensor and outputted as a corresponding vibration signal. At least one bearing characteristic, fundamental kinematic frequency dependent on a current bearing rotational frequency is determined by computation. A corresponding bearing frequency in a measurement frequency spectrum of the respective vibration signal is determined by measurement. A first diagnostic message is output when at least one of the determined bearing frequencies deviates by a respective prescribed frequency deviation from the corresponding computational fundamental kinematic frequency.
    Type: Application
    Filed: June 1, 2009
    Publication date: December 3, 2009
    Applicant: Siemens Aktiengesellschaft
    Inventors: FELIX BUTZ, Karl Gebert
  • Publication number: 20090285512
    Abstract: A roller bearing includes an outer ring of metal, an inner ring of metal, and at least one roller body which is made of a material which includes ceramic, with carbon nanotubes and/or carbon nanofibers being embedded in the ceramic material of the roller body. As a result, the roller body is rendered electrically conductive, and allows measurement of a thickness of a lubricating film in the roller bearing. Furthermore, heat is carried from the inner ring to the outer ring as a result of increased thermal conductivity.
    Type: Application
    Filed: May 13, 2009
    Publication date: November 19, 2009
    Applicant: Siemens Aktiengesellschaft
    Inventor: Karl Gebert
  • Publication number: 20050146095
    Abstract: A spindle apparatus includes a housing for rotatable support of a spindle. The spindle is sealed by a brush seal in order to prevent fluid, contained in the housing, from escaping and/or to prevent ingress of a medium from outside into the housing.
    Type: Application
    Filed: September 23, 2004
    Publication date: July 7, 2005
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Karl Gebert
  • Patent number: D243168
    Type: Grant
    Filed: July 22, 1974
    Date of Patent: January 25, 1977
    Assignee: Dunlop Limited
    Inventors: Claude Albert Hart, Brian Howard Holmes, Karl Gebert
  • Patent number: D320773
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: October 15, 1991
    Assignee: SP Reifenwerke GmbH
    Inventors: Karl Gebert, Ernst Ott
  • Patent number: D320774
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: October 15, 1991
    Assignee: SP Reifenwerke GmbH
    Inventors: Karl Gebert, Ernst Ott