Patents by Inventor Kenneth W. Stirn

Kenneth W. Stirn 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).

  • Fuel filter cartridge and keyed end cap
    Patent number: 8628663
    Abstract: A filter cartridge has a keyed end cap which is configured and shaped for unlocking an associated valve mechanism that comprises a latch device and a valve. In this manner, when the fuel filter cartridge is placed into a fuel filter housing having such a latch and valve mechanism, the fuel filter cartridge is operable therein to filter fluid and pass the fluid into a standpipe contained within the fuel filter housing. The fuel filter cartridge of this type generally includes pleated filter paper which is disposed between two opposed end caps. The keys may be provided along the bottom end cap.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: January 14, 2014
    Assignee: Baldwin Filters, Inc.
    Inventors: Thomas C. Richmond, Steven M. Todd, Kenneth W. Stirn, Farrell F. Calcaterra
  • FUEL FILTER CARTRIDGE AND KEYED END CAP
    Publication number: 20120223003
    Abstract: A filter cartridge has a keyed end cap which is configured and shaped for unlocking an associated valve mechanism that comprises a latch device and a valve. In this manner, when the fuel filter cartridge is placed into a fuel filter housing having such a latch and valve mechanism, the fuel filter cartridge is operable therein to filter fluid and pass the fluid into a standpipe contained within the fuel filter housing. The fuel filter cartridge of this type generally includes pleated filter paper which is disposed between two opposed end caps. The keys may be provided along the bottom end cap.
    Type: Application
    Filed: May 14, 2012
    Publication date: September 6, 2012
    Applicant: Baldwin Filters, Inc.
    Inventors: Thomas C. Richmond, Steven M. Todd, Kenneth W. Stirn, Farrell F. Calcaterra
  • Fuel filter cartridge and keyed end cap
    Patent number: 8197686
    Abstract: A filter cartridge has a keyed end cap which is configured and shaped for unlocking an associated valve mechanism that comprises a latch device and a valve. In this manner, when the fuel filter cartridge is placed into a fuel filter housing having such a latch and valve mechanism, the fuel filter cartridge is operable therein to filter fluid and pass the fluid into a standpipe contained within the fuel filter housing. The fuel filter cartridge of this type generally includes pleated filter paper which is disposed between two opposed end caps. The keys may be provided along the bottom end cap.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: June 12, 2012
    Assignee: Baldwin Filters, Inc.
    Inventors: Thomas C. Richmond, Steven M. Todd, Kenneth W. Stirn, Farrell F. Calcaterra
  • Fuel filter cartridge and keyed end cap
    Patent number: 7326342
    Abstract: A filter cartridge has a keyed end cap which is configured and shaped for unlocking an associated valve mechanism that comprises a latch device and a valve. In this manner, when the fuel filter cartridge is placed into a fuel filter housing having such a latch and valve mechanism, the fuel filter cartridge is operable therein to filter fluid and pass the fluid into a standpipe contained within the fuel filter housing. The fuel filter cartridge of this type generally includes pleated filter paper which is disposed between two opposed end caps. The keys may be provided along the bottom end cap.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: February 5, 2008
    Assignee: Baldwin Filters, Inc.
    Inventors: Thomas C. Richmond, Steven M. Todd, Kenneth W. Stirn