Patents by Inventor David J. Eigner

David J. Eigner 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: 11292108
    Abstract: A method comprises the steps of providing a tool over a collar secured to a stud on a gas turbine engine system. The collet is driven to rotate and remove the collar from the stud. A tool for removing collars from studs has a driver with a housing receiving a piston. A spring drives the piston, and the housing also has a hydraulic fluid supply opening for selectively receiving a hydraulic fluid to move the piston in opposition to a force from the spring. Collet fingers are movable between a released position and a secured position when a supply of hydraulic fluid is supplied into the housing.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: April 5, 2022
    Assignee: Raytheon Technologies Corporation
    Inventors: David J. Eigner, Steven E. Eichner
  • Patent number: 10875266
    Abstract: A repair tool for applying a coating patch includes a heating element, a flexible bladder disposed adjacent the heating element, and an inflexible shell disposed about the flexible bladder. The inflexible shell defines a negative space corresponding to a plurality of sides of an aircraft component. A controller is communicatively coupled to the heating element and the bladder, and is configured to control a temperature of the heating element and a pressure of the flexible bladder.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: December 29, 2020
    Assignee: Raytheon Technologies Corporation
    Inventor: David J. Eigner
  • Publication number: 20200061781
    Abstract: A method comprises the steps of providing a tool over a collar secured to a stud on a gas turbine engine system. The collet is driven to rotate and remove the collar from the stud. A tool for removing collars from studs has a driver with a housing receiving a piston. A spring drives the piston, and the housing also has a hydraulic fluid supply opening for selectively receiving a hydraulic fluid to move the piston in opposition to a force from the spring. Collet fingers are movable between a released position and a secured position when a supply of hydraulic fluid is supplied into the housing.
    Type: Application
    Filed: October 28, 2019
    Publication date: February 27, 2020
    Inventors: David J. Eigner, Steven E. Eichner
  • Patent number: 10456894
    Abstract: A method comprises the steps of providing a tool over a collar secured to a stud on a gas turbine engine system. The collet is driven to rotate and remove the collar from the stud. A tool for removing collars from studs has a driver with a housing receiving a piston. A spring drives the piston, and the housing also has a hydraulic fluid supply opening for selectively receiving a hydraulic fluid to move the piston in opposition to a force from the spring. Collet fingers are movable between a released position and a secured position when a supply of hydraulic fluid is supplied into the housing.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: October 29, 2019
    Assignee: United Technologies Corporation
    Inventors: David J. Eigner, Steven E. Eichner
  • Publication number: 20180345608
    Abstract: A repair tool for applying a coating patch includes a heating element, a flexible bladder disposed adjacent the heating element, and an inflexible shell disposed about the flexible bladder. The inflexible shell defines a negative space corresponding to a plurality of sides of an aircraft component. A controller is communicatively coupled to the heating element and the bladder, and is configured to control a temperature of the heating element and a pressure of the flexible bladder.
    Type: Application
    Filed: June 1, 2017
    Publication date: December 6, 2018
    Inventor: David J. Eigner
  • Publication number: 20160236334
    Abstract: A method comprises the steps of providing a tool over a collar secured to a stud on a gas turbine engine system. The collet is driven to rotate and remove the collar from the stud. A tool for removing collars from studs has a driver with a housing receiving a piston. A spring drives the piston, and the housing also has a hydraulic fluid supply opening for selectively receiving a hydraulic fluid to move the piston in opposition to a force from the spring. Collet fingers are movable between a released position and a secured position when a supply of hydraulic fluid is supplied into the housing.
    Type: Application
    Filed: October 17, 2014
    Publication date: August 18, 2016
    Inventors: David J. Eigner, Steven E. Eichner