Patents by Inventor Fred Woehr

Fred Woehr 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).

  • Grid valve apparatus
    Patent number: 9739395
    Abstract: A grid valve may include an annular stationary plate having a first annular surface, and an annular rotatable plate disposed on the annular stationary plate and rotatable relative to the annular stationary plate. The annular rotatable plate may have a second annular surface, and each of the annular stationary plate and the annular rotatable plate may define a plurality of holes in the respective annular surfaces thereof. The grid valve may further include a first magnet disposed on the first annular surface and a second magnet disposed on the second annular surface such that the first magnet repels the second magnet.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: August 22, 2017
    Assignee: Dresser-Rand Company
    Inventors: Luke P. Zimmer, Alan LePain, Fred Woehr
  • GRID VALVE APPARATUS
    Publication number: 20150204455
    Abstract: A grid valve may include an annular stationary plate having a first annular surface, and an annular rotatable plate disposed on the annular stationary plate and rotatable relative to the annular stationary plate. The annular rotatable plate may have a second annular surface, and each of the annular stationary plate and the annular rotatable plate may define a plurality of holes in the respective annular surfaces thereof. The grid valve may further include a first magnet disposed on the first annular surface and a second magnet disposed on the second annular surface such that the first magnet repels the second magnet.
    Type: Application
    Filed: December 4, 2014
    Publication date: July 23, 2015
    Applicant: DRESSER-RAND COMPANY
    Inventors: Luke P. Zimmer, Alan LePain, Fred Woehr