Patents by Inventor Sterling Imfeld

Sterling Imfeld 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).

  • On-board hydraulic fluid degasification system for a hydraulic hybrid vehicle
    Patent number: 8652233
    Abstract: A fluid degasification system for a hydraulic circuit includes a gas/fluid separation tank, a fluid entry passage directing fluid into a small foam generating cup containing foam and a small amount of additional fluid, thereby stimulating foam formation. A separation screen is positioned below the foam generating cup to receive bubbles formed in the cup and to allow liquid to pass through the screen to a degasified-fluid collecting chamber below the screen as the bubbles resting on the separation screen decompose.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: February 18, 2014
    Assignee: The United States of America, as represented by the Administrator of the U.S. Environmental Protection Agency
    Inventors: Dustin Kramer, David Williams, Sterling Imfeld
  • On-Board Hydraulic Fluid Degasification System for a Hydraulic Hybrid Vehicle
    Publication number: 20120247324
    Abstract: A fluid degasification system for a hydraulic circuit includes a gas/fluid separation tank, a fluid entry passage directing fluid into a small foam generating cup containing foam and a small amount of additional fluid, thereby stimulating foam formation. A separation screen is positioned below the foam generating cup to receive bubbles formed in the cup and to allow liquid to pass through the screen to a degasified-fluid collecting chamber below the screen as the bubbles resting on the separation screen decompose.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 4, 2012
    Inventors: Dustin Kramer, David Williams, Sterling Imfeld