Patents by Inventor Gerrit C. Koese

Gerrit C. Koese 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: 4872788
    Abstract: A multi-spindle drilling machine for simultaneously drilling a plurality of holes, in particular suitable for drilling a plurality of tiny, closely-spaced holes, comprising a drivable drive wheel coacting with a plurality of friction wheels, each connected to a flexible spindle, whose ends away from the friction wheels extend through bores in a spaced apart spindle guide block. Said bores correspond with opposite bores in a drill guide block and are disposed in accordance with the pattern of the holes to be drilled. A coupling arrangement is provided in the space between the drill guide block and the spindle guide block for connecting the shanks of drill bits placed in the bores of the drill guide block to the spindles.
    Type: Grant
    Filed: February 1, 1989
    Date of Patent: October 10, 1989
    Inventor: Gerrit C. Koese