Patents by Inventor John Holchin

John Holchin 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: 9879611
    Abstract: Bleed valve assemblies in a gas turbine engine are disclosed herein. A bleed valve assembly in a low pressure compressor may include a bleed valve and a resonator chamber. A manifold may allow passage of air from a bleed duct into the resonator chamber. The resonator chamber may alter resonation properties of the bleed duct in order to prevent damage to components in the low pressure compressor.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: January 30, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Bruce L. Morin, David A. Topol, Mark Boyer, Brian Desfosses, W. Marshall Quin, John Holchin, Jonathan D. Little, Bryan Roseberry
  • Publication number: 20160153361
    Abstract: Bleed valve assemblies in a gas turbine engine are disclosed herein. A bleed valve assembly in a low pressure compressor may include a bleed valve and a resonator chamber. A manifold may allow passage of air from a bleed duct into the resonator chamber. The resonator chamber may alter resonation properties of the bleed duct in order to prevent damage to components in the low pressure compressor.
    Type: Application
    Filed: June 29, 2015
    Publication date: June 2, 2016
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: BRUCE L. MORIN, DAVID A. TOPOL, MARK BOYER, BRIAN DESFOSSES, W. MARSHALL QUIN, JOHN HOLCHIN, JONATHAN D. LITTLE, BRYAN ROSEBERRY
  • Patent number: 9151178
    Abstract: A variable vane assembly for use in a gas turbine engine includes a variable vane, an actuator, and a mechanical linkage. The mechanical linkage connects the variable vane to the actuator. The mechanical linkage includes a bellcrank rotatable about an axis, a first bellcrank arm having a first clevis at an inner end, and a first pin extending through the first clevis and a first flange of the bellcrank to fasten the first bellcrank arm to the bellcrank.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: October 6, 2015
    Assignee: United Technologies Corporation
    Inventors: John Holchin, Mark Boyer, Tim Harding
  • Publication number: 20140133968
    Abstract: A variable vane assembly for use in a gas turbine engine includes a variable vane, an actuator, and a mechanical linkage. The mechanical linkage connects the variable vane to the actuator. The mechanical linkage includes a bellcrank rotatable about an axis, a first bellcrank arm having a first clevis at an inner end, and a first pin extending through the first clevis and a first flange of the bellcrank to fasten the first bellcrank arm to the bellcrank.
    Type: Application
    Filed: November 15, 2012
    Publication date: May 15, 2014
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: John Holchin, Mark Boyer, Tim Harding
  • Publication number: 20090188396
    Abstract: An oven includes a housing including a heating chamber. A door has an open position for allowing operator access to the heating chamber and a closed position for preventing user access to the heating chamber. A heating system heats a food product located within the heating chamber. A wireless temperature sensor is configured to be inserted into the food product by an operator for measuring food product temperature and to provide a wireless signal indicative of food product temperature. An oven control system includes a sensor communicator for receiving the temperature indicative signal from the wireless temperature sensor. The oven control system operates in response to the wireless signal.
    Type: Application
    Filed: August 5, 2008
    Publication date: July 30, 2009
    Inventors: Matthias C. Hofmann, Jessica N. Long, Jon K. Engelsman, Qian Yang, Jacob D. Wahl, Brian Smith, Michael D'Fantis, John Holchin