Patents by Inventor Mark K. Wolfenden

Mark K. Wolfenden 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).

  • Patent number: 7047997
    Abstract: A device and method for venting a tank comprising an intermediate shutoff valve as part of a cover that closes a tank opening. The intermediate shutoff valve is placed between an existing valve and a vent port in a liquid storage tank. The shutoff valve is operable to substantially fluidly seal the vent port when the vent valve is displaced greater than a predetermined amount. The intermediate shutoff valve facilitates complete removal of the existing vent valve during an impact wherein a wall of the storage tank impacts the existing valve. Upon impact, the intermediate shutoff valve is operable to close and seal a tank opening created by the displacement and removal of the existing vent valve.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: May 23, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Sharon Elizabeth Beyer, Ulf Sawert, Mark K. Wolfenden, Chris I. Witherspoon, Robert A. Roth, Thomas J. Mott, Michael Allen Pittenger, William L. Villaire
  • Patent number: 6951131
    Abstract: A fuel level indication assembly for a fuel tank includes at least one ultrasonic sensor having a drum to emit and receive a sonic signal. The at least one ultrasonic sensor is adapted to be disposed in either one of a liquid fuel and a fuel vapor/air space within the fuel tank to measure a level of liquid fuel within the fuel tank.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: October 4, 2005
    Assignee: Delphi Technologies, Inc.
    Inventors: Ulf Sawert, Hugh Wesley Ireland, Michael D. Lutton, Mark K. Wolfenden, Daniel Alexander Crawford
  • Publication number: 20040079149
    Abstract: A fuel level indication assembly for a fuel tank includes at least one ultrasonic sensor having a drum to emit and receive a sonic signal. The at least one ultrasonic sensor is adapted to be disposed in either one of a liquid fuel and a fuel vapor/air space within the fuel tank to measure a level of liquid fuel within the fuel tank.
    Type: Application
    Filed: September 4, 2003
    Publication date: April 29, 2004
    Inventors: Ulf Sawert, Hugh Wesley Ireland, Michael D. Lutton, Mark K. Wolfenden, Daniel Alexander Crawford
  • Publication number: 20030094458
    Abstract: A cover assembly for a fuel tank of a vehicle includes a cover adapted to close an opening in the fuel tank and a common vent port extending from the cover. The cover assembly also includes a plurality of valves attached to the cover and venting through the common vent port.
    Type: Application
    Filed: November 19, 2001
    Publication date: May 22, 2003
    Inventors: Sharon Elizabeth Beyer, Dale Richard Jones, Matthew L. Catlin, Ulf Sawert, Mark Hilderbrant, Mark K. Wolfenden, William L. Villaire, Stephen J. Davidek
  • Patent number: 6517327
    Abstract: A fuel pump isolation assembly for a fuel pump of a vehicle includes a fuel pump and an isolation housing having a fuel pump cavity extending axially therethrough to receive the fuel pump. The fuel pump isolation assembly also includes a plurality of flex arms extending from the isolation housing and into the fuel pump cavity to engage the fuel pump and allow radial movement of the fuel pump during its operation.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: February 11, 2003
    Assignee: Delphi Technologies Inc.
    Inventors: Sharon Elizabeth Beyer, Dale Richard Jones, Matthew L. Catlin, Mohammed Aslam, Mark K. Wolfenden
  • Publication number: 20020007825
    Abstract: A fuel pump isolation assembly for a fuel pump of a vehicle includes a fuel pump and an isolation housing having a fuel pump cavity extending axially therethrough to receive the fuel pump. The fuel pump isolation assembly also includes a plurality of flex arms extending from the isolation housing and into the fuel pump cavity to engage the fuel pump and allow radial movement of the fuel pump during its operation.
    Type: Application
    Filed: December 15, 2000
    Publication date: January 24, 2002
    Inventors: Sharon Elizabeth Beyer, Dale Richard Jones, Matthew L. Catlin, Mohammed Aslam, Mark K. Wolfenden
  • Patent number: 6230691
    Abstract: A secondary fuel pump assembly for a fuel tank in a vehicle includes a reservoir adapted to be disposed in the fuel tank having a top defining an overflow fuel level of the reservoir. The secondary fuel pump assembly also includes a conduit conducting return fuel from an engine of the vehicle to the reservoir and a jet pump having a discharge outlet in the reservoir and an inlet operatively connected to the conduit. The secondary fuel pump assembly includes an overflow fuel member defining a flow path for overflow of fuel in the reservoir and a guide member extending into the overflow fuel member and having at least one aperture extending therethough. The secondary fuel pump assembly further includes a guide disposed over the guide member and movable relative thereto to open and close the at least one aperture and a float connected to the guide to move the guide as a fuel level rises and falls in the reservoir.
    Type: Grant
    Filed: August 2, 2000
    Date of Patent: May 15, 2001
    Assignee: Delphi Technologies, Inc.
    Inventors: Timothy Francis Coha, Sharon Elizabeth Beyer, Mark K. Wolfenden, Ulf Sawert, Chris Clarence Begley, Dale Richard Jones