Patents by Inventor Arthur Schafert

Arthur Schafert 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: 7065861
    Abstract: The invention relates to a strain-sensitive resistor, comprising a resistance layer arranged on a support element and an electromechanical transducer produced with this resistor. An increase in the electrical measured signal picked off across the resistor is achieved in a simple way by the support element (1) having a recess (7) on its surface (9) which, when the support element (1) is subjected to mechanical stress in at least one area of the surface (9) of the support element (1) in which the resistance layer (4) is positioned, produces a ratio between the two main strain directions (L, T) of the resistance layer (4) which differs in magnitude.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: June 27, 2006
    Assignee: Mannesmann VDO AG
    Inventors: Arthur Schäfert, Jürgen Irion, Zlatko Penzar, Wolfgang Porth
  • Publication number: 20050083169
    Abstract: The invention relates to a strain-sensitive resistor, comprising a resistance layer arranged on a support element and an electromechanical Transducer produced with this resistor. An increase in the electrical measured signal picked off across the resistor is achieved in a simple way by the support element (1) having a recess (7) on its surface (9) which, when the support element (1) is subjected to mechanical stress in at least one area of the surface (9) of the support element (1) in which the resistance layer (4) is positioned, produces a ratio between the two main strain directions (L, T) of the resistance layer (4) which differs in magnitude.
    Type: Application
    Filed: October 27, 2004
    Publication date: April 21, 2005
    Inventors: Arthur Schafert, Jurgen Irion, Zlatko Penzar, Wolfgang Porth
  • Patent number: 6842970
    Abstract: A method of producing a strain sensitive resistor includes matching an area of a film insulating layer to a shape of a recess in a surface of a support element. The film insulating area is applied to the support element so that the area of the film matching the shape of the recess is congruent with the shape of the recess. A resistive layer comprising strain-sensitive resistors is applied to the film insulating layer and the film insulating layer and the resistive layer are applied to heat treatment.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: January 18, 2005
    Assignee: Mannesmann VDO AG
    Inventors: Arthur Schäfert, Jürgen Irion, Zlatko Penzar, Wolfgang Porth
  • Patent number: 6782967
    Abstract: In a steering booster device, a torque-sensor shaft being provided between a first shaft carrying the steering wheel and a second shaft connected to the gear of the steering booster, at least one end of the torque-sensor shaft is supported flexibly in the first or second shaft by at least one damping element.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: August 31, 2004
    Assignee: Mannesmann VDO AG
    Inventors: Arthur Schäfert, Gerald Scharf
  • Patent number: 6675663
    Abstract: A mechanical/electrical transducer which has a bridge circuit formed by electrically connecting strain-sensitive thick-film resistors by conductor tracks, the thick-film resistors being arranged directly on a metallic component to be subjected mechanically to torsional loading and lying outside an axis of the component to be loaded which is neutral with respect to bending moments, it being possible to tap an electrical signal corresponding to the strain of the thick-film resistors when the component is subjected to torsion.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: January 13, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jürgen Irion, Arthur Schäfert, Bernd Thyzel, Klaus Weber
  • Patent number: 6617811
    Abstract: A protective device for an electric steering system of a motor vehicle having a control, an electric motor, a control circuit and a gear mechanism. The electric motor is connected to a brake circuit which applies an electrical load to the motor if the rotational speed exceeds a predefined value.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: September 9, 2003
    Assignee: Siemens VDO Automotive Corporation
    Inventor: Arthur Schäfert
  • Publication number: 20030062982
    Abstract: The invention relates to a strain-sensitive resistor, comprising a resistance layer arranged on a support element and an electromechanical transducer produced with this resistor.
    Type: Application
    Filed: November 6, 2002
    Publication date: April 3, 2003
    Applicant: Mannesmann VDO AG
    Inventors: Arthur Schafert, Jurgen Irion, Zlatko Penzar, Wolfgang Porth
  • Patent number: 6512445
    Abstract: A strain-sensitive resistor including a resistance layer arranged on a support element and an electromechanical transducer produced with this transistor. The support element has a recess in its surface. When the support element is subjected to mechanical stress in at least one area in which the resistance layer is positioned, the recess produces a ratio between the two main strain directions of the resistance layer which differs in magnitude.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: January 28, 2003
    Assignee: Mannesmann VDO AG
    Inventors: Arthur Schäfert, Jürgen Irion, Zlatko Penzar, Wolfgang Porth
  • Publication number: 20020033092
    Abstract: In a steering booster device, a torque-sensor shaft being provided between a first shaft carrying the steering wheel and a second shaft connected to the gear of the steering booster, at least one end of the torque-sensor shaft is supported flexibly in the first or second shaft by at least one damping element.
    Type: Application
    Filed: September 13, 2001
    Publication date: March 21, 2002
    Inventors: Arthur Schafert, Gerald Scharf
  • Publication number: 20010037909
    Abstract: A protective device for an electric steering system of a motor vehicle having a control, an electric motor, a control circuit and a gear mechanism. The electric motor is connected to a brake circuit which applies an electrical load to the motor if the rotational speed exceeds a predefined value.
    Type: Application
    Filed: March 19, 2001
    Publication date: November 8, 2001
    Inventor: Arthur Schafert