Patents by Inventor John Peter Hoffman

John Peter Hoffman 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: 20150283660
    Abstract: A table for use in working on a circularly arcuate component is disclosed. The table includes a base frame and a first work surface mounted to the base frame, the first work surface including at least one linearly slidable work section separable from a remaining portion of the first work surface. A fastener for holding a circularly arcuate component relative to the at least one linearly slidable work section is provided. A mount for mounting a machining tool for machining the circularly arcuate component or a circular component may also be provided.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 8, 2015
    Applicant: General Electric Company
    Inventors: Paul James Cassidy, John Peter Hoffman, David Allan Hultman, John Matthew Sassatelli
  • Patent number: 7845076
    Abstract: Re-machining a generator rotor tooth dovetail results in a transition zone at an end of the partial re-machined cut, between a newly cut load surface and an original load surface of the rotor tooth. The transition zone is susceptible to stresses that may adversely affect the fatigue strength of the rotor tooth. These stresses can be reduced by the steps of (a) forming at least one axial undercut stress relief groove across the transition zone between the newly cut load surface and the original load surface, (b) cutting and shaping a wedge that will fit in the transition zone, and (c) securing the wedge across the transition zone.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: December 7, 2010
    Assignee: General Electric Company
    Inventors: Alexander Gabriel Beckford, Madhu Bharadwaj, John Peter Hoffman
  • Publication number: 20090260221
    Abstract: Re-machining a generator rotor tooth dovetail results in a transition zone at an end of the partial re-machined cut, between a newly cut load surface and an original load surface of the rotor tooth. The transition zone is susceptible to stresses that may adversely affect the fatigue strength of the rotor tooth. These stresses can be reduced by the steps of (a) forming at least one axial undercut stress relief groove across the transition zone between the newly cut load surface and the original load surface, (b) cutting and shaping a wedge that will fit in the transition zone, and (c) securing the wedge across the transition zone.
    Type: Application
    Filed: April 21, 2008
    Publication date: October 22, 2009
    Inventors: Alexander Gabriel Beckford, Madhu Bharadwaj, John Peter Hoffman