Patents by Inventor Peter U. Wolff

Peter U. Wolff 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: 6927465
    Abstract: A sensing apparatus having a sensor formed in a monolithic semiconductor substrate and oriented orthogonally to a signal conditioner is provided. The sensor generates a sensing signal in response to a predetermined physical stimulus. A signal conditioner electrically connected and responsive to the sensor conditions the sensing signal. The sensor and signal conditioner are formed on wafer surfaces of a single semiconductor substrate cut from a semiconductor wafer. The substrate is separated, one portion having the sensor formed on therein and the other having formed therein the signal conditioner. The portions are oriented and rejoined to form a monolithic semiconductor substrate. The resulting monolithic substrate has, then, a sensor and signal conditioner formed therein and angled relative to each other at a predetermined angle.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: August 9, 2005
    Assignee: Wolff Controls Corporation
    Inventors: Marshall E. Smith, Jr., Richard W. Stettler, Peter U. Wolff
  • Patent number: 6600202
    Abstract: A compact sensing apparatus having reduced cross section and methods are provided for sensing the magnitude and direction of an electrical or magnetic field. The compact sensing apparatus and method preferably provide one of two transducer orientations in relation to the direction of the field arranged in the sensor apparatus to provide the smallest possible cross section. The compact sensing apparatus preferably includes a plurality of mounting pins. Each of the plurality of mounting pins preferably includes a first pin portion and a second pin portion connected to the first pin portion at a predetermined angle. The predetermined angle is preferably less than 180 degrees and more preferably in the range of about 70-110 degrees.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: July 29, 2003
    Assignee: Wolff Controls Corporation
    Inventors: Marshall E. Smith, Jr., Peter U. Wolff, Richard W. Stettler
  • Patent number: 6590390
    Abstract: A compact sensing apparatus having reduced cross section and methods are provided for sensing the magnitude and direction of an electrical or magnetic field. The compact sensing apparatus and method preferably provide one of two transducer orientations in relation to the direction of the field arranged in the sensor apparatus to provide the smallest possible cross section. The compact sensing apparatus preferably includes a plurality of mounting pins. Each of the plurality of mounting pins preferably is formed of a magnetic material and includes a first pin portion and a second pin portion connected to the first pin portion at a predetermined angle. The predetermined angle is preferably less than 180 degrees and more preferably in the range of about 70-110 degrees.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: July 8, 2003
    Assignee: Wolff Controls Corporation
    Inventors: Marshall E. Smith, Jr., Peter U. Wolff, Richard W. Stettler
  • Publication number: 20020186033
    Abstract: A sensing apparatus having a sensor and signal conditioner angled relative to each other at a predetermined angle and formed in a seamless monolithic semiconductor substrate is provided. The sensor is formed in the cut plane of the seamless monolithic semiconductor substrate. The signal conditioner is formed in a wafer surface of the same seamless monolithic semiconductor substrate. The sensor generates a sensing signal in response to a preselected physical stimulus. The signal conditioner is electrically connected to the sensor to condition the signal generated. The seamless monolithic semiconductor substrate can be mounted on a mounting base and encapsulated in an encapsulation to provide a protective cover. An additional conductor connected to the signal conditioner and extending outwardly from the encapsulation connects the sensing apparatus to a remote electrical device such as a sensing monitor.
    Type: Application
    Filed: May 1, 2002
    Publication date: December 12, 2002
    Inventors: Marshall E. Smith, Richard W. Stettler, Peter U. Wolff
  • Publication number: 20020173065
    Abstract: A sensing apparatus having a sensor formed in a monolithic semiconductor substrate and oriented orthogonally to a signal conditioner is provided. The sensor generates a sensing signal in response to a predetermined physical stimulus. A signal conditioner electrically connected and responsive to the sensor conditions the sensing signal. The sensor and signal conditioner are formed on wafer surfaces of a single semiconductor substrate cut from a semiconductor wafer. The substrate is separated, one portion having the sensor formed on therein and the other having formed therein the signal conditioner. The portions are oriented and rejoined to form a monolithic semiconductor substrate. The resulting monolithic substrate has, then, a sensor and signal conditioner formed therein and angled relative to each other at a predetermined angle.
    Type: Application
    Filed: May 1, 2002
    Publication date: November 21, 2002
    Inventors: Marshall E. E. Smith, Richard W. Stettler, Peter U. Wolff
  • Publication number: 20020168800
    Abstract: A method for forming a sensing apparatus having a sensor and signal conditioner angled relative to each other at a predetermined angle and formed in a seamless monolithic semiconductor substrate is provided. The sensor and the signal conditioner are formed on distinct surface portions of a single seamless monolithic semiconductor substrate. The sensor, moreover, can be formed in the cut plane of the seamless monolithic semiconductor substrate. The signal conditioner correspondingly can be formed in a wafer surface of the same seamless monolithic semiconductor substrate. The seamless monolithic semiconductor substrate further can be mounted on a mounting base and at least the signal conditioner encapsulated in an encapsulation to provide a protective cover. An additional conductor connected to the signal conditioner and extending outwardly from the encapsulation can connect the sensing apparatus to a remote electrical device such as a sensing monitor.
    Type: Application
    Filed: May 1, 2002
    Publication date: November 14, 2002
    Inventors: Marshall E. Smith, Richard W. Stettler, Peter U. Wolff
  • Publication number: 20020167312
    Abstract: A sensing apparatus having a sensor formed in a monolithic semiconductor substrate and oriented orthogonally to a signal conditioner is provided. The sensor generates a sensing signal in response to a predetermined physical stimulus. A signal conditioner electrically connected and responsive to the sensor conditions the sensing signal. The signal conditioner, moreover, is preferably formed in the same semiconductor substrate and, more preferably is oriented at a right angle relative so as to be orthogonal to the sensor to thereby enhance the compactness of the sensing apparatus.
    Type: Application
    Filed: May 1, 2002
    Publication date: November 14, 2002
    Inventors: Marshall E. Smith, Richard W. Stettler, Peter U. Wolff
  • Publication number: 20020163052
    Abstract: A sensing apparatus having a sensor formed in a monolithic semiconductor substrate and oriented orthogonally to a signal conditioner is provided. The sensor generates a sensing signal in response to a predetermined physical stimulus. A signal conditioner electrically connected and responsive to the sensor conditions the sensing signal. The sensor and signal conditioner are formed on wafer surfaces of a single semiconductor substrate cut from a semiconductor wafer. The substrate is separated, one portion having the sensor formed on therein and the other having formed therein the signal conditioner. The portions are oriented and rejoined to form a monolithic semiconductor substrate. The resulting monolithic substrate has, then, a sensor and signal conditioner formed therein and angled relative to each other at a predetermined angle.
    Type: Application
    Filed: May 1, 2002
    Publication date: November 7, 2002
    Inventors: Marshall E. Smith, Richard W. Stettler, Peter U. Wolff
  • Publication number: 20020152985
    Abstract: A system, apparatus including on-board diagnostics, and methods are provided for sensing the effects of differing fuel quality in charge-by-charge, and cylinder-by-cylinder variation, and using a sensor and feedback to adjust the fueling to reduce the variation between charges in each cylinder to improve performance, reduce emissions, and increasing the operative life of a compression ignition engine.
    Type: Application
    Filed: January 11, 2002
    Publication date: October 24, 2002
    Inventor: Peter U. Wolff
  • Publication number: 20020074997
    Abstract: A compact sensing apparatus having reduced cross section and methods are provided for sensing the magnitude and direction of an electrical or magnetic field. The compact sensing apparatus and method preferably provide one of two transducer orientations in relation to the direction of the field arranged in the sensor apparatus to provide the smallest possible cross section. The compact sensing apparatus preferably includes a plurality of mounting pins. Each of the plurality of mounting pins preferably is formed of a magnetic material and includes a first pin portion and a second pin portion connected to the first pin portion at a predetermined angle. The predetermined angle is preferably less than 180 degrees and more preferably in the range of about 70-110 degrees.
    Type: Application
    Filed: February 12, 2002
    Publication date: June 20, 2002
    Applicant: Wolff Controls
    Inventors: Marshall E. Smith, Peter U. Wolff, Richard W. Stettler
  • Patent number: 6346811
    Abstract: A compact sensing apparatus having reduced cross section and methods are provided for sensing the magnitude and direction of an electrical or magnetic field. The compact sensing apparatus and method preferably provide one of two transducer orientations in relation to the direction of the field arranged in the sensor apparatus to provide the smallest possible cross section. The compact sensing apparatus preferably includes a plurality of mounting pins. Each of the plurality of mounting pins preferably is formed of a magnetic material and includes a first pin portion and a second pin portion connected to the first pin portion at a predetermined angle. The predetermined angle is preferably less than 180 degrees and more preferably in the range of about 70-110 degrees.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: February 12, 2002
    Assignee: Wolff Controls Corp.
    Inventors: Marshall E. Smith, Jr., Peter U. Wolff, Richard W. Stettler
  • Patent number: 6187609
    Abstract: A compact sensing apparatus having reduced cross section and methods are provided for sensing the magnitude and direction of an electrical or magnetic field. The compact sensing apparatus and method preferably provide one of two transducer orientations in relation to the direction of the field arranged in the sensor apparatus to provide the smallest possible cross section. The compact sensing apparatus preferably includes a plurality of mounting pins. Each of the plurality of mounting pins preferably includes a first pin portion and a second pin portion connected to the first pin portion at a predetermined angle. The predetermined angle is preferably less than 180 degrees and more preferably in the range of about 70-110 degrees.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: February 13, 2001
    Assignee: Wolff Controls Corporation
    Inventors: Marshall E. Smith, Jr., Peter U. Wolff, Richard W. Stettler
  • Patent number: 6002252
    Abstract: A compact sensing apparatus having reduced cross section and methods are provided for sensing the magnitude and direction of an electrical or magnetic field. The compact sensing apparatus and method preferably provide one of two transducer orientations in relation to the direction of the field arranged in the sensor apparatus to provide the smallest possible cross section. The compact sensing apparatus preferably includes a plurality of mounting pins. Each of the plurality of mounting pins preferably includes a first pin portion and a second pin portion connected to the first pin portion at a predetermined angle. The predetermined angle is preferably less than 180 degrees and more preferably in the range of about 70-110 degrees.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: December 14, 1999
    Assignee: Wolff Controls Corporation
    Inventors: Marshall E. Smith, Jr., Peter U. Wolff, Richard W. Stettler
  • Patent number: 5738071
    Abstract: An apparatus and methods are provided for sensing movement of a fuel injector valve of a fuel injection system. The apparatus preferably includes a fuel pump for pumping fuel to flow to a combustion chamber of an engine and a first valve positioned in fluid communication with the fuel pump for allowing fuel to flow directly into the combustion chamber when in an open position. A second valve is positioned in fluid communication with the first valve and the fuel pump for allowing fuel to flow to the first valve when in an open position. A second valve actuator is positioned responsive to desired fuel injection for actuating the second valve. A sensor is positioned to sense movement of the first and second valves and the actuation of the second valve actuator. A movement differentiator is preferably positioned responsive to the sensor for differentiating a time of moving of the first valve from the time of moving of the second valve and the actuation of the second valve actuator.
    Type: Grant
    Filed: December 3, 1996
    Date of Patent: April 14, 1998
    Assignee: Wolff Controls Corporation
    Inventors: Marshall E. Smith, Jr., Peter U. Wolff, Richard W. Stettler
  • Patent number: 5670886
    Abstract: A method and apparatus for sensing proximity of an object using near-field effects or magnetic effects. The sensor chips are designed to accommodate numerous sensing elements. In the electromagnetic sensor, radio frequency energy is fed to an antenna. The antenna radiates this radio frequency energy to charge the surface of an object. When the position of the object changes, the impedance of the antenna due to near-field effects changes. This impedance change is detected to provide an indication of the object's movement. In the magnetic sensor, the sensing element is placed at a right angle to the sensor electronics to provide a smaller surface area across the diameter of the sensor. The magnet that charges the object to be detected is manufactured as a part of the sensor encapsulant. The sensing device may be packaged to be inserted into a wall to provide a sensor having a leak-free seal.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 23, 1997
    Assignee: Wolf Controls Corporation
    Inventors: Peter U. Wolff, Marshall E. Smith, Jr.