Patents by Inventor Frank T. Keogh

Frank T. Keogh 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).

  • Single charge continuous rotary retort furnace with an accessible door
    Patent number: 5749722
    Abstract: A single charge continuous rotary retort furnace for heat treating machine parts in a sealed atmosphere, including a rotary retort furnace housing having an inlet and outlet end with a feeder assembly at the inlet end that has a plurality of chambers for supplying the machine parts to the rotary retort furnace housing to be heat treated. In addition, the rotary retort furnace includes a locking collar assembly for connecting the feeder assembly to the inlet end of the rotary retort furnace housing having locking tabs for locking the feeder assembly to the locking collar assembly; pistons and cylinders for rotating the locking collar assembly relative to the feeder assembly; and a device for sealing the feeder assembly relative to the locking collar assembly to create an atmospheric seal in the retort furnace housing for enabling the machine parts to be heat treated.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: May 12, 1998
    Assignee: American Gas Furnace Company
    Inventors: Michael E. Driscoll, Michael A. Dorio, Frank T. Keogh