Patents by Inventor Karl Bonm

Karl Bonm 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).

  • Device for drilling, in particular percussion drilling or rotary percussion drilling, boreholes
    Patent number: 6722454
    Abstract: A device for drilling holes, including a drill bit with a drilling or breaking surface, a drill rod for introducing a rotary or percussive force and for introducing a rinsing or cooling fluid into the drill bit and a sheath pipe which defines a hollow space between the drill rod and the inside of the sheath pipe and which is supported on the drill rod or which can be connected to the drill bit. In a drilling position, the sheath pipe is situated at a distance from the rear side of the drill bit facing away from the breaking surface and the drill bit can be introduced into a rinsing position for the hollow space between the sheath pipe and the drill rod with its rear side resting on the front end of the sheath pipe facing towards the drill bit or can be connected to the front end of the sheath pipe.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: April 20, 2004
    Assignees: Techmo Entwicklungs- und Vertriebs GmbH, “ALWAG” Tunnelausbau Gesellschaft m.b.H.
    Inventors: Josef Mocivnik, Karl Bonm