Patents by Inventor Philip R. Klauder

Philip R. Klauder 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).

  • Transducer having redundant pressure sensors
    Patent number: 6029524
    Abstract: A pressure transducer having a redundant fluid pressure sensor can be used to determine if the pressure transducer needs to be recalibrated. The pressure transducer comprises a fluid pressure sensor for measuring differential pressure. The fluid pressure sensor includes a pair of substantially identical pressure sensors for providing a variable electrical output as a function of a differential fluid pressure and a reference sensor for providing an electrical output independent of the differential fluid pressure. A conditioning circuit is provided for generating a frequency-based signal whose frequency is a function of the electrical output for each fluid pressure sensor. The electrical output of the first and second pressure sensors can be compared to determine whether the pressure transducer needs to be calibrated. In one embodiment, the pressure sensors comprise variable capacitors.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: February 29, 2000
    Assignee: Moore Products Co.
    Inventors: Philip R. Klauder, James O. Moore, Christopher J. O'Brien
  • Differential capacitive transducer
    Patent number: 5804736
    Abstract: A pressure transducer having a redundant fluid pressure sensor can be used to determine if the pressure transducer needs to be recalibrated. The pressure transducer comprises a fluid pressure sensor for measuring differential pressure. The fluid pressure sensor includes a pair of substantially identical pressure sensors for providing a variable electrical output as a function of a differential fluid pressure and a reference sensor for providing an electrical output independent of the differential fluid pressure. A conditioning circuit is provided for generating a frequency-based signal whose frequency is a function of the electrical output for each fluid pressure sensor. The electrical output of the first and second pressure sensors can be compared to determine whether the pressure transducer needs to be calibrated. In one embodiment, the pressure sensors comprise variable capacitors.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: September 8, 1998
    Assignee: Moore Products Co.
    Inventors: Philip R. Klauder, James O. Moore, Christopher J. O'Brien
  • Transducer having redundant pressure sensors
    Patent number: 5672808
    Abstract: A pressure transducer having a redundant fluid pressure sensor can be used to determine if the pressure transducer needs to be recalibrated. The pressure transducer comprises a fluid pressure sensor for measuring differential pressure. The fluid pressure sensor includes a pair of substantially identical pressure sensors for providing a variable electrical output as a function of a differential fluid pressure and a reference sensor for providing an electrical output independent of the differential fluid pressure. A conditioning circuit is provided for generating a frequency-based signal whose frequency is a function of the electrical output for each fluid pressure sensor. The electrical output of the first and second pressure sensors can be compared to determine whether the pressure transducer needs to be calibrated. In one embodiment, the pressure sensors comprise variable capacitors.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: September 30, 1997
    Assignee: Moore Products Co.
    Inventors: Philip R. Klauder, James O. Moore, Christopher J. O'Brien
  • Capacitive temperature and pressure transducer
    Patent number: 5663506
    Abstract: A monolithic temperature and pressure transducer having a plurality of capacitive sensors. The capacitors are formed from the same silicon substrate and are equally affected by temperature variations, including temperature gradients.
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: September 2, 1997
    Assignee: Moore Products Co.
    Inventors: James O. Moore, Raymond H. Kohler, Philip R. Klauder