Patents by Inventor Gary H. Hafemeister

Gary H. Hafemeister 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).

  • Suction filter for an automatic transmission
    Patent number: 7875171
    Abstract: A filter assembly includes a filter housing including an inlet, through which hydraulic fluid enters the housing, and an outlet, through which hydraulic fluid exits the housing, valve housing containing a bypass valve located adjacent the inlet in a chamber, the valve including an orifice that opens and closes in response to differential pressure across the valve, and a screen secured to the valve housing and covering the orifice, the screen having a fine mesh for removing contaminants from the fluid that flows through the valve.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: January 25, 2011
    Assignee: Ford Global Technologies, LLC
    Inventors: Lev Pekarsky, Timothy A. Droste, Gary H. Hafemeister
  • Suction Filter for an Automatic Transmission
    Publication number: 20090114578
    Abstract: A filter assembly includes a filter housing including an inlet, through which hydraulic fluid enters the housing, and an outlet, through which hydraulic fluid exits the housing, valve housing containing a bypass valve located adjacent the inlet in a chamber, the valve including an orifice that opens and closes in response to differential pressure across the valve, and a screen secured to the valve housing and covering the orifice, the screen having a fine mess for removing contaminants from the fluid that flows through the valve.
    Type: Application
    Filed: November 1, 2007
    Publication date: May 7, 2009
    Inventors: Lev Pekarsky, Timothy A. Droste, Gary H. Hafemeister