Patents by Inventor Erwin Weyrich

Erwin Weyrich 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).

  • Lock assembly for a drive shaft of a fuel injection pump for internal combustion engines
    Patent number: 4190401
    Abstract: A lock assembly for restraining a drive shaft of a fuel injection pump in a definite rotary position that corresponds to the initial point of fuel injection for an internal combustion engine. The lock assembly which can be removed after installation of the pump in a motor vehicle includes an elastic deformable element that has a portion thereof that is rigidly connected adjacent to one end wall of the pump housing and further includes another portion that is secured to an element driven by the drive shaft.
    Type: Grant
    Filed: November 21, 1977
    Date of Patent: February 26, 1980
    Assignee: Robert Bosch GmbH
    Inventors: Eberhard Hofmann, Erwin Weyrich