Patents by Inventor Harold J. Mitchell

Harold J. Mitchell 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).

  • Water pump bearing and seal cartridge
    Patent number: 5409350
    Abstract: A water pump for use mounted on an internal combustion engine includes a pump housing, a shaft rotatably disposed in the pump housing, a pumping element attached to the shaft, and a removable bearing and seal cartridge disposed in the pump housing. The removable bearing and seal cartridge includes a cartridge housing adapted for receipt mounted in the pump housing, bearing means for axially and radially locating the shaft relative to the pump housing, and sealing means for sealing working fluid from the bearing means.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: April 25, 1995
    Assignee: Caterpillar Inc.
    Inventor: Harold J. Mitchell