Patents by Inventor Helmut Purner

Helmut Purner 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).

  • Force measuring transducer
    Patent number: 7401526
    Abstract: The invention relates to a force measuring transducer with an oscillator (1) with an inductor (2) formed by a primary winding and a gauge (11) with a secondary winding (30) which is connected electroconductively to the gauge (11) and which is disposed in transformer coupling with the inductor (2) of the oscillator (1). Action of a force on the gauge (11) changes the impedance of the gauge (11) and the load of the inductively coupled secondary winding (30). An evaluation circuit (14) is used to determine the resulting frequency change of the oscillator (1) which is proportional to the force acting on the gauge (11).
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: July 22, 2008
    Assignee: Occluscan AG
    Inventors: Bruno Starek, Franz Vekoerrer, Helmut Purner
  • Force measuring transducer
    Publication number: 20070039394
    Abstract: The invention relates to a force measuring transducer with an oscillator (1) with an inductor (2) formed by a primary winding and a gauge (11) with a secondary winding (30) which is connected electroconductively to the gauge (11) and which is disposed in transformer coupling with the inductor (2) of the oscillator (1). Action of a force on the gauge (11) changes the impedance of the gauge (11) and the load of the inductively coupled secondary winding (30). An evaluation circuit (14) is used to determine the resulting frequency change of the oscillator (1) which is proportional to the force acting on the gauge (11).
    Type: Application
    Filed: October 13, 2006
    Publication date: February 22, 2007
    Inventors: Bruno Starek, Franz Vekoerrer, Helmut Purner
  • Force measuring transducer
    Patent number: 7121148
    Abstract: The invention relates to a force measuring transducer with an oscillator (1) with an inductor (2) formed by a primary winding and a gauge (11) with a secondary winding (30) which is connected electroconductively to the gauge (11) and which is disposed in transformer coupling with the inductor (2) of the oscillator (1). Action of a force on the gauge (11) changes the impedance of the gauge (11) and the load of the inductively coupled secondary winding (30). An evaluation circuit (14) is used to determine the resulting frequency change of the oscillator (1) which is proportional to the force acting on the gauge (11).
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: October 17, 2006
    Assignee: Occluscan AG
    Inventors: Bruno Starek, Franz Vekoerrer, Helmut Purner
  • Force measuring transducer
    Publication number: 20050115330
    Abstract: The invention relates to a force measuring transducer with an oscillator (1) with an inductor (2) formed by a primary winding and a gauge (11) with a secondary winding (30) which is connected electroconductively to the gauge (11) and which is disposed in transformer coupling with the inductor (2) of the oscillator (1). Action of a force on the gauge (11) changes the impedance of the gauge (11) and the load of the inductively coupled secondary winding (30). An evaluation circuit (14) is used to determine the resulting frequency change of the oscillator (1) which is proportional to the force acting on the gauge (11).
    Type: Application
    Filed: September 17, 2004
    Publication date: June 2, 2005
    Inventors: Bruno Starek, Franz Vekoerrer, Helmut Purner