Patents by Inventor Walter P. Knappertz

Walter P. Knappertz 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).

  • Method and apparatus for pneumatically conveying fiber material
    Patent number: 4553882
    Abstract: An apparatus for pneumatically conveying fiber-like material includes a main duct and at least two branch ducts communicating with the main duct in a branching zone. The material is entrained by a gas stream from the main duct into the branch ducts. The apparatus further has an arrangement for generating a countercurrent; an arrangement for introducing the countercurrent into the branching zone; and an arrangement for directing the countercurrent into the main duct parallel to the longitudinal axis of the main duct.
    Type: Grant
    Filed: October 4, 1983
    Date of Patent: November 19, 1985
    Assignee: Trutzschler GmbH & Co. KG
    Inventor: Walter P. Knappertz