Patents by Inventor Mark A. Gasper

Mark A. Gasper 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).

  • Filter service system and method
    Patent number: 7384455
    Abstract: According to an exemplary embodiment of the present disclosure, a method of detecting matter within a filtering device includes measuring a metric indicative of a first quantity of matter within the filtering device and removing a portion of the matter from the filtering device. The method also includes measuring a metric indicative of a second quantity of matter remaining within the filtering device.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: June 10, 2008
    Assignee: Caterpillar Inc.
    Inventors: Cheryl L. Sellers, Dong Fei, Jill R. Akers, Bappaditya Banerjee, Mark A. Gasper, Daniel S. Nordyke, Richard A. Crandell, Orlando Sellers, II, Christie S. Ragle, Ronald Silver, Julie M. Faas, Paul W. Park, Jeremy Trethewey
  • Wear compensating plunger-and-barrel seal for hydraulic fuel injectors
    Patent number: 6543784
    Abstract: In a fuel injector having a plunger-and-barrel pumping assembly, a sealing member is mounted within an annulus of a plunger to prevent the dilution of pressurized fuel within the barrel of the tool. The sealing member includes a hollowed cavity which traps upward moving pressurized fuel and forces an extension or wiper of the sealing member upward and outward into sealing engagement with the inner surface or bore of the barrel.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: April 8, 2003
    Assignee: Caterpillar Inc
    Inventors: Mark A. Gasper, David M. Klingbeil
  • Wear compensating plunger-and-barrel seal for hydraulic fuel injectors
    Publication number: 20020074735
    Abstract: In a fuel injector having a plunger-and-barrel pumping assembly, a sealing member is mounted within an annulus of a plunger to prevent the dilution of pressurized fuel within the barrel of the tool. The sealing member includes a hollowed cavity which traps upward moving pressurized fuel and forces an extension or wiper of the sealing member upward and outward into sealing engagement with the inner surface or bore of the barrel.
    Type: Application
    Filed: December 19, 2000
    Publication date: June 20, 2002
    Inventors: Mark A. Gasper, David M. Klingbeil