Patents by Inventor Erich John Wollman

Erich John Wollman 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).

  • Detecting coolant leaks in turbine generators
    Patent number: 9170193
    Abstract: An apparatus for detecting a leak in a gas cooled generator is provided. The apparatus includes a subsystem for introducing a non-corrosive second gas having an infrared absorption spectrum into the generator. The apparatus also includes an imaging component adapted to detect radiation at the infrared absorption spectrum of the non-corrosive second gas. The imaging component is provided with a filter that filters wavelengths in a range encompassing the infrared absorption spectrum of the non-corrosive second gas. The imaging component displays an image of the tracer gas leaking from the generator on the imaging component.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: October 27, 2015
    Assignee: General Electric Company
    Inventors: James Jun Xu, Leonard Paul Squillacioti, Stephen Frank Francese, Brian Scott Shewchuk, Erich John Wollman
  • METHOD AND SYSTEM FOR DETECTING LEAKS IN STEAM TURBINES
    Publication number: 20150292976
    Abstract: A system for detecting a leak in a steam turbine includes an infrared imaging device adapted to scan at least a portion of the steam turbine and communicate with a notification device. The infrared imaging device includes a cooled detector and a filter with a spectral response or bandpass between about 2.5 ?m and about 8 ?m. The leak will be indicated on the notification device, and the cooled detector is cooled to between about ?80° C. and about ?200° C. The steam turbine may be on-line during leak detection.
    Type: Application
    Filed: April 10, 2014
    Publication date: October 15, 2015
    Applicant: General Electric Company
    Inventors: James Jun Xu, Kevin Joseph Barb, Stephen Frank Francese, Erich John Wollman
  • DETECTING COOLANT LEAKS IN TURBINE GENERATORS
    Publication number: 20140362226
    Abstract: An apparatus for detecting a leak in a gas cooled generator is provided. The apparatus includes a subsystem for introducing a non-corrosive second gas having an infrared absorption spectrum into the generator. The apparatus also includes an imaging component adapted to detect radiation at the infrared absorption spectrum of the non-corrosive second gas. The imaging component is provided with a filter that filters wavelengths in a range encompassing the infrared absorption spectrum of the non-corrosive second gas. The imaging component displays an image of the tracer gas leaking from the generator on the imaging component.
    Type: Application
    Filed: June 6, 2013
    Publication date: December 11, 2014
    Inventors: James Jun Xu, Leonard Paul Squillacioti, Stephen Frank Francese, Brian Scott Shewchuk, Erich John Wollman