Patents by Inventor Glenn Gradischer

Glenn Gradischer 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).

  • VALVES WITH METERING SLEEVES
    Publication number: 20150275933
    Abstract: A valve includes a housing having an inlet and an outlet. A spool is fixed within the housing and defines a flow window therethrough for fluid communication between the inlet and the outlet. A piston is slidingly engaged in a piston compartment of the spool. A sleeve is slidingly engaged with the spool on an outer surface of the spool. The piston and sleeve are operatively connected for common motion along a sliding axis relative to the spool and housing between a first position in which the sleeve occludes the flow window to inhibit flow from the inlet to the outlet, and a second position in which the sleeve unoccludes the flow window to allow flow from the inlet to the outlet.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 1, 2015
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Francis P. Marocchini, Glenn Gradischer
  • FLOW RESTRICTOR
    Publication number: 20140360609
    Abstract: A flow restrictor includes a first disc and a second disc. A rod extends between the first disc and the second disc and spaces the first disc from the second disc. A first hole is formed in the first disc.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 11, 2014
    Inventor: Glenn Gradischer
  • Article having good wear resistance
    Patent number: 8833382
    Abstract: An article having good wear resistance includes a first component including a boride coating and a second component including a cobalt-chromium-molybdenum coating that is in sliding contact with the boride coating of the first component.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: September 16, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Glenn Gradischer, Kevin M. Rankin, Blair A. Smith, Angelina Y. Cheung
  • ARTICLE HAVING GOOD WEAR RESISTANCE
    Publication number: 20120119132
    Abstract: An article having good wear resistance includes a first component including a boride coating and a second component including a cobalt-chromium-molybdenum coating that is in sliding contact with the boride coating of the first component.
    Type: Application
    Filed: September 20, 2011
    Publication date: May 17, 2012
    Inventors: Glenn Gradischer, Kevin M. Rankin, Blair A. Smith, Angelina Y. Cheung
  • ADJUSTABLE PLUGS FOR FLUID FLOW-SPLIT ACCURACY
    Publication number: 20110139266
    Abstract: A flow splitter for accurately dividing fluid flow into different outlets includes a splitter valve and a calibration member. The calibration member blocks a portion of fluid flow to reduce differences in the divided fluid flows.
    Type: Application
    Filed: December 11, 2009
    Publication date: June 16, 2011
    Inventors: Tomas R. Leutwiler, Glenn Gradischer, Anthony Towne, Richard H. Bostiga