Patents by Inventor Aaron K. Amstutz

Aaron K. Amstutz 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).

  • Fluid filter with locking mechanism
    Patent number: 6481580
    Abstract: A fuel filter assembly with a replaceable filter element and a reusable filter housing, which incorporates a locking mechanism to ensure that the filter system will not be operated without a filter element installed.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: November 19, 2002
    Assignee: Caterpillar Inc
    Inventors: Aaron K. Amstutz, David C. Becktel, Jeffrey R. Ries, Kevin K. Socha
  • Slip resistant filter housing
    Publication number: 20020043506
    Abstract: A fuel filter assembly includes a filter element positioned within a hollow cylindrical filter housing and attached to the filter housing such that the filter element and filter housing rotate in unison. The filter housing includes an integral gripping surface, such as longitudinal ribs.
    Type: Application
    Filed: December 22, 2000
    Publication date: April 18, 2002
    Inventors: Aaron K. Amstutz, David C. Becktel, Terry L. Miller, Jeffrey R. Ries, Kevin K. Socha