Patents by Inventor Dennis J. Castleman

Dennis J. Castleman 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: 6108884
    Abstract: An insertion tool for inserting a backup ring and an O-ring into a gland. The tool includes a body having a recess for containing the backup ring and the O-ring. The tool further includes a pusher movably mounted adjacent to the body. The pusher is moveable in a first direction and a second direction. The pusher includes a pulling device for pulling the backup ring and the O-ring in the first direction. The pusher further includes a pushing device for pushing the backup ring and the O-ring in the second direction into the gland.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: August 29, 2000
    Assignee: Aeroquip Corporation
    Inventors: Dennis J. Castleman, Sean P. Ford
  • Patent number: 5862578
    Abstract: An insertion tool for insertion of a ring into a body defining an internal recess for receiving the ring including a ring holder and a plunger. The ring holder includes a ring end and a handle end. The ring end includes a stationary shoulder for engaging the body. The ring end includes at least one relief for receiving and positioning the ring. The ring holder defines a plunger channel extending between the ring and the handle ends. The plunger is slidingly positioned in the plunger channel. The plunger has a radius end adjacent the ring end and an actuation end adjacent the handle end. The radius end includes at least one radius for engaging the ring.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: January 26, 1999
    Assignee: Aeroquip Corporation
    Inventor: Dennis J. Castleman