Patents by Inventor Peter Neef

Peter Neef 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: 5083068
    Abstract: In order to obtain a stoppage safety function for electric motors, in particular such intended for driving power-driven screwing machines with intermediate stepping-down gears, it is proposed that the system be prevented from dropping once more below the cut-off threshold determined by the control circuit (U211B) once the electric motor has been switched-off for the first time due to the stoppage-safety function, in that an electric storage (C1) is provided for holding the stored voltage even when, after the system has been switched off, a new tachogenerator signal should be produced due to a momentary return motion resulting from the mechanical release and the stresses that have built up in the mechanical drive train.
    Type: Grant
    Filed: October 23, 1990
    Date of Patent: January 21, 1992
    Inventor: Peter Neef
  • Patent number: 4475419
    Abstract: A counterholding tool for absorbing torque while tightening screws or the like, which has an element for engaging the screw nut and a stop. The element and the stop are movable relative to one another, and a releasable locking mechanism is provided by means of which the position of the two components relative to one another can be fixed. (FIG. 4).
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: October 9, 1984
    Inventor: Hans-Peter Neef