Patents by Inventor Mitchell Kujawski

Mitchell Kujawski 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).

  • Reciprocating cone anti-drainback apparatus
    Patent number: 6782917
    Abstract: An anti-drainback apparatus for a filter used in a vehicle transmission, allows fluid to keep the transmission pump primed when the engine is turned off. In one embodiment, the apparatus includes a seal disposed in a neck member of the filter at its outlet, and a body having slanted sides, and a platform base. The body is disposed in the neck member such that the slanted sides of the body abut the seal, and the platform base covers the opening of the neck member, preventing fluid from draining back from the pump into the sump when the engine is turned off. Thus, the body is movable from an unsealed position which allows fluid flow to the transmission when the engine is turned on, and the sealed position which prevents fluid drainback into the filter when the engine is turned off.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: August 31, 2004
    Assignee: SPX Corporation
    Inventors: James B. Wolford, Joseph A. Geisler, Mitchell Kujawski
  • Reciprocating cone anti-drainback apparatus
    Publication number: 20030075496
    Abstract: An anti-drainback apparatus for a filter used in a vehicle transmission, allows fluid to keep the transmission pump primed when the engine is turned off. In one embodiment, the apparatus includes a seal disposed in a neck member of the filter at its outlet, and a body having slanted sides, and a platform base. The body is disposed in the neck member such that the slanted sides of the body abut the seal, and the platform base covers the opening of the neck member, preventing fluid from draining back from the pump into the sump when the engine is turned off. Thus, the body is movable from an unsealed position which allows fluid flow to the transmission when the engine is turned on, and the sealed position which prevents fluid drainback into the filter when the engine is turned off.
    Type: Application
    Filed: October 24, 2001
    Publication date: April 24, 2003
    Inventors: James B. Wolford, Joseph A. Geisler, Mitchell Kujawski