Patents by Inventor Guenter Schaal

Guenter Schaal 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: 5466183
    Abstract: A hand-held power tool, particularly hand-operated angle grinder has a device housing having a motor housing receiving an electric drive, a gear head arranged at one end of the motor housing and having a projecting drive spindle for a tool, and a handle arranged at another end of the motor housing and having a switch strip for switching the electric drive on and off, at least one of the handle and the gear head forming a rotatable housing part and being rotatable relative to the motor housing around a longitudinal axis of the motor housing. A manually actuated positioning device fixes the rotatable housing part in at least two different rotational positions, while the motor housing being provided with a central bearing neck, the rotatable housing part being provided with a rotating cross which is received on the bearing neck so as to be rotatable and secured against axial displacement, the positioning device being formed to cause a positive-locking engagement between the motor housing and the rotating cross.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: November 14, 1995
    Assignee: Robert Bosch GmbH
    Inventors: Manfred Kirn, Erich Borst, Guenter Schaal, Manfred-Wilhelm Staebler, Bernard Eicher