Patents by Inventor Ewald Walker

Ewald Walker 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 and method for locking a drive shaft disposed in a fuel injection pump for internal combustion engines and holding bolt therefor
    Patent number: 4499757
    Abstract: An element firmly connected with the drive shaft of an injection pump is locked in a predetermined rotary position, corresponding to the supply onset, by a locking device before the mounting of the injection pump to the associated internal combustion engine, the locking being effected by means of a holding bolt embodied as a reversible part. The holding bolt, locked by a fastening means in a reception bore, engages a transverse groove on the end face, in a first mounting position, via a protrusion on the element firmly connected with the drive shaft, and thus establishes a form-locking connection which keeps the drive shaft in the predetermined rotary position. In a second mounting position of the holding bolt, where the transverse groove points outward, the rotary movement of the drive shaft is unhindered.
    Type: Grant
    Filed: November 1, 1982
    Date of Patent: February 19, 1985
    Inventors: Egbert Backe, Rolf Muller, Dieter Otto, Cornelio Leonardi, Heinrich Kochendorfer, Paul Fussner, Ewald Walker, Rudi Rommel