Patents by Inventor Wilhelm Pieper

Wilhelm Pieper 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: 4208899
    Abstract: A press for producing machine elements, such as balls, rivets and the like, especially machine elements of relatively small dimensions, e.g. balls having a diameter of 1 mm, from wire sections, which includes a wire intake device, a device for shearing off the wire, a device for conveying the wire sections to and in front of a stationary matrix, and a punch associated with the matrix and adapted to be reciprocated back and forth in axial direction with regard to the matrix. If desired, there may also be provided ejectors for the punch or the matrix. The punch is, axially with regard to the matrix, movably guided in a tool carrier which in pressing direction is stationarily arranged in the machine frame. Furthermore, the punch is drivingly connected to a rotatable cam disc through the intervention of a pick-up roller.
    Type: Grant
    Filed: November 29, 1977
    Date of Patent: June 24, 1980
    Assignee: Gebr. Hilgeland
    Inventor: Wilhelm Pieper
  • Patent number: PP5872
    Abstract: A new variety of Aechmea fascini is disclosed which is characterized by the absence of spines along the margins of the leaves of the plant.
    Type: Grant
    Filed: November 6, 1984
    Date of Patent: February 3, 1987
    Inventor: Wilhelm Pieper