Patents by Inventor Gerald L. Buhman

Gerald L. Buhman 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).

  • Dowell rod inserter
    Patent number: 5993108
    Abstract: A device for inserting rods into plastic forms comprising a frame, a plunger assembly coupled to the frame, an air cylinder assembly also coupled to the frame and to the plunger assembly, and a pneumatic plumbing assembly connected to the air cylinder assembly. The frame can be attached to a slipform paving or curbing machine. When actuated, the air cylinder assembly pulls the plunger along the frame. The plunger pushes a dowel rod resting in the frame along the frame and into a concrete member being extruded from the machine.
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: November 30, 1999
    Assignee: Bestgen, Inc.
    Inventor: Gerald L. Buhman