Patents by Inventor Michael M. Van Schoiack

Michael M. Van Schoiack 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).

  • Publication number: 20190265310
    Abstract: A system and method to detect the loss or disruption of one or more phases of a three phase alternating current (AC) power source used in the operation of a valve actuator. The loss of one or more phases of a three phase AC power source may cause a peak in AC power output. While a peak in AC power output may not affect an operation of electronic circuitry, all three phases are often required to safely operate other hardware components, such as an AC motor that is associated with the valve actuator. Therefore, in response to detecting the loss or disruption of at least one phase of a three phase AC power source, this disclosure presents a system and method to inhibit damaging operations such as operating an AC motor associated with a valve actuator, and continuing to operate communications and diagnostic circuitry to report the condition.
    Type: Application
    Filed: March 4, 2019
    Publication date: August 29, 2019
    Inventors: Richard Lynn Cordray, Michael M. Van Schoiack, Roy Gilbert
  • Patent number: 10247787
    Abstract: A system and method to detect the loss or disruption of one or more phases of a three phase alternating current (AC) power source used in the operation of a valve actuator. The loss of one or more phases of a three phase AC power source may cause a peak in AC power output. While a peak in AC power output may not affect an operation of electronic circuitry, all three phases are often required to safely operate other hardware components, such as an AC motor that is associated with the valve actuator. Therefore, in response to detecting the loss or disruption of at least one phase of a three phase AC power source, this disclosure presents a system and method to inhibit damaging operations such as operating an AC motor associated with a valve actuator, and continuing to operate communications and diagnostic circuitry to report the condition.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: April 2, 2019
    Assignee: Tri-Tec Manfacturing, LLC
    Inventors: Richard Lynn Cordray, Michael M. Van Schoiack, Roy Gilbert
  • Publication number: 20180259589
    Abstract: A system and method to detect the loss or disruption of one or more phases of a three phase alternating current (AC) power source used in the operation of a valve actuator. The loss of one or more phases of a three phase AC power source may cause a peak in AC power output. While a peak in AC power output may not affect an operation of electronic circuitry, all three phases are often required to safely operate other hardware components, such as an AC motor that is associated with the valve actuator. Therefore, in response to detecting the loss or disruption of at least one phase of a three phase AC power source, this disclosure presents a system and method to inhibit damaging operations such as operating an AC motor associated with a valve actuator, and continuing to operate communications and diagnostic circuitry to report the condition.
    Type: Application
    Filed: May 16, 2018
    Publication date: September 13, 2018
    Inventors: Richard Lynn Cordray, Michael M. Van Schoiack, Roy Gilbert
  • Patent number: 9995795
    Abstract: A system and method to detect the loss or disruption of one or more phases of a three phase alternating current (AC) power source used in the operation of a valve actuator. The loss of one or more phases of a three phase AC power source may cause a peak in AC power output. While a peak in AC power output may not affect an operation of electronic circuitry, all three phases are often required to safely operate other hardware components, such as an AC motor that is associated with the valve actuator. Therefore, in response to detecting the loss or disruption of at least one phase of a three phase AC power source, this disclosure presents a system and method to inhibit damaging operations such as operating an AC motor associated with a valve actuator, and continuing to operate communications and diagnostic circuitry to report the condition.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: June 12, 2018
    Assignee: Tri-Tec Manufacturing, LLC
    Inventors: Richard Lynn Cordray, Michael M. Van Schoiack, Roy Gilbert
  • Publication number: 20170315185
    Abstract: A system and method to detect the loss or disruption of one or more phases of a three phase alternating current (AC) power source used in the operation of a valve actuator. The loss of one or more phases of a three phase AC power source may cause a peak in AC power output. While a peak in AC power output may not affect an operation of electronic circuitry, all three phases are often required to safely operate other hardware components, such as an AC motor that is associated with the valve actuator. Therefore, in response to detecting the loss or disruption of at least one phase of a three phase AC power source, this disclosure presents a system and method to inhibit damaging operations such as operating an AC motor associated with a valve actuator, and continuing to operate communications and diagnostic circuitry to report the condition.
    Type: Application
    Filed: July 14, 2017
    Publication date: November 2, 2017
    Inventors: Richard Lynn Cordray, Michael M. Van Schoiack, Roy Gilbert
  • Patent number: 9739840
    Abstract: A system and method to detect the loss or disruption of one or more phases of a three phase alternating current (AC) power source used in the operation of a valve actuator. The loss of one or more phases of a three phase AC power source may cause a peak in AC power output. While a peak in AC power output may not affect an operation of electronic circuitry, all three phases are often required to safely operate other hardware components, such as an AC motor that is associated with the valve actuator. Therefore, in response to detecting the loss or disruption of at least one phase of a three phase AC power source, this disclosure presents a system and method to inhibit damaging operations such as operating an AC motor associated with a valve actuator, and continuing to operate communications and diagnostic circuitry to report the condition.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: August 22, 2017
    Assignee: Tri-Tec Manufacturing, LLC
    Inventors: Richard Lynn Cordray, Michael M. Van Schoiack, Roy Gilbert
  • Patent number: 8631893
    Abstract: A method and steering wheel for determining and verifying a state of driver alertness includes receiving a response at a steering wheel. The method includes selectively energizing at least one stimulus annunciator in the wheel in order to present a first stimulus to a driver. A processor in the wheel generates a signal indicative of a stimulus annunciator onset time indicating the moment the stimulus annunciator provided the first stimulus to the driver. A sensor array arranged on the wheel responds to a first grip pressure the driver exerts at a first grip location on the wheel. The processor generates a response signal indicative of a response onset time. The processor calculates a time interval between the stimulus annunciator onset time and the response onset time.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: January 21, 2014
    Inventor: Michael M. Van Schoiack
  • Publication number: 20110284304
    Abstract: A method and steering wheel for determining and verifying a state of driver alertness includes receiving a response at a steering wheel. The method includes selectively energizing at least one stimulus annunciator in the wheel in order to present a first stimulus to a driver. A processor in the wheel generates a signal indicative of a stimulus annunciator onset time indicating the moment the stimulus annunciator provided the first stimulus to the driver. A sensor array arranged on the wheel responds to a first grip pressure the driver exerts at a first grip location on the wheel. The processor generates a response signal indicative of a response onset time. The processor calculates a time interval between the stimulus annunciator onset time and the response onset time.
    Type: Application
    Filed: November 12, 2010
    Publication date: November 24, 2011
    Inventor: Michael M. Van Schoiack
  • Publication number: 20080319570
    Abstract: A system for monitoring installation of fasteners in an assembly process utilizes printed symbology, such as a barcode, to uniquely identify the location at which a fastener will be installed. An installation tool includes torque measuring capability and further includes a reader capable of reading the printed symbology. The output of the reader and the torque measurement values are provided to a computer communicatively coupled thereto. The computer contains stored fastener torque signatures that correspond to each fastener. Based on the printed symbology identification, the computer can determine the type of fastener to be installed at that precise location. During installation, torque measurements from the installation tool are compared against the fastener torque signature to determine whether the proper fastener was installed at that location and, additionally, whether the fastener was properly installed.
    Type: Application
    Filed: June 25, 2008
    Publication date: December 25, 2008
    Inventor: Michael M. Van Schoiack
  • Patent number: 5659470
    Abstract: A computerized monitoring system is provided for sensing, displaying and storing a plurality of vehicle parameters for determining efficiency and to provide a detailed history of the vehicle throughout a work shift. The system is primarily intended for use on vehicles that carry heavy payloads many times a day such as are used in mining and general off-road, heavy-duty construction. The system incorporates up to 40 sensors to monitor vehicle parameters such as payload weight fluid temperatures, fluid pressures, fluid levels, shift position, direction of vehicle motion and vehicle speed. The system is provided with a display for showing the information to a vehicle operator. In addition, a central processing unit monitors the sensors and continuously compares the sensor output against predetermined maximum and minimum levels which indicate a "normal" range of operation. The system is initialized by a computer card that must be inserted into a card reader.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: August 19, 1997
    Assignee: Atlas Copco Wagner, Inc.
    Inventors: Walter J. Goska, Joseph Y. Muller, Dennis W. Gaibler, David Thompson, Donald A. Lawe, Michael M. Van Schoiack
  • Patent number: 4752732
    Abstract: A rotational displacement sensor includes a pair of coils stationarily mounted adjacent a rotatable cam formed of a metallic material. The coils are energized by high frequency alternating current. A differential amplifier is connected to the coils such that the output of the amplifier is linearly proportional to the rotational angular displacement of the cam relative to the coils.
    Type: Grant
    Filed: March 14, 1985
    Date of Patent: June 21, 1988
    Assignee: Baker-Hughes
    Inventors: Michael M. Van Schoiack, Patrick H. Mawet
  • Patent number: 4745893
    Abstract: An oil level sensor includes a sensor body adapted to be mounted to the block or casing of an oil-containing reservoir. A probe including a pair of electrodes forming a capacitor extends from the sensor body so that the capacitor will be at least partially immersed in the oil to detect the level thereof. At least one of the electrodes is insulated so that the apparent capacitance of the capacitor is relatively insensitive to any change in the conductivity of the oil at high temperatures. Circuitry is provided in response to the capacitance of the capacitor for signalling the level of the oil, which capacitance is a function of the oil level. The sensor body is mounted to the block by external threads on the probe. The electrodes of the probe extend proximally past the threads to provide an increased capacitance for the sensor. The electrodes of the probe are concentric and the inner electrode is supported at both ends to reduce fatigue.
    Type: Grant
    Filed: December 3, 1986
    Date of Patent: May 24, 1988
    Assignee: Caterpillar Inc.
    Inventors: Kim Wesley Atherton, A. Brinkley Barr, Thomas M. Harmon, Michael M. Van Schoiack, Marvin E. Vandehey, Richard D. Weyerts, Charles R. Clow, Patrick H. Mawet
  • Patent number: 4206400
    Abstract: In order to facilitate construction of a compact, lightweight servoed accelerometer with capacitive pick-off, a one-piece support frame, adapted to be inserted within a cylindrical housing, is used to support a pair of capacitor plates and a lightweight longitudinally reinforced pendulum or seismic mass having a paddle on one end. The paddle is positioned midway between the capacitor plates, thereby forming a pair of capacitors each having a capacitance on the order of 2 to 4 picofarads. Attached to the pendulum is an axle which in turn is supported between two flexures by means of jeweled pivoted bearings. The ends of the flexures are rigidly secured to the support frame, and a desired pressure of the bearings against the axle is maintained by means of adjustment screws.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: June 3, 1980
    Assignee: Sundstrand Data Control, Inc.
    Inventors: Frederick V. Holdren, Martin E. Larson, Michael M. Van Schoiack
  • Patent number: 4125789
    Abstract: In order to provide a substantially error free biasing and scaling circuit for transducer signals, an operational amplifier and a field effect transistor are used in combination with a DC voltage source to bias and scale the transducer signal.
    Type: Grant
    Filed: June 7, 1977
    Date of Patent: November 14, 1978
    Assignee: Sundstrand Corporation
    Inventor: Michael M. Van Schoiack
  • Patent number: 4094199
    Abstract: In order to facilitate construction of a compact, lightweight servoed accelerometer with capacitive pick-off, a one-piece support frame, adapted to be inserted within a cylindrical housing, is used to support a pair of capacitor plates and a lightweight longitudinally reinforced pendulum or seismic mass having a paddle on one end. Attached to the pendulum is an axle which in turn is supported between two flexures by means of jeweled pivoted bearings. Also attached to the pendulum is a torque coil which interacts with a magnetic assembly, secured to the support frame, to restore the paddle to the midpoint between the capacitor plates when the pendulum has been subjected to an acceleration force.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: June 13, 1978
    Assignee: Sundstrand Data Control, Inc.
    Inventors: Frederick V. Holdren, Hans W. Hugli, John M. Kubler, Martin E. Larson, Michael M. Van Schoiack