Patents by Inventor Manfred Weinbrecht

Manfred Weinbrecht 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).

  • Process and apparatus for closing one end of a tubular bar
    Patent number: 4866832
    Abstract: A process is described in which a tubular bar (27) which is substantially but not entirely filled with flowable solids (28), is closed at one end. To close the tubular bar (27) at its end, a thread (3) is introduced into the tubular bar (27) and is caused to form a ball of thread therein. The thread (3) is preferably introduced into the tubular bar by being blown through a hollow needle (11).
    Type: Grant
    Filed: September 23, 1987
    Date of Patent: September 19, 1989
    Assignees: Lenhardt Maschinenbau GmbH, Manfred Weinbrecht
    Inventors: Karl Lenhardt, Manfred Weinbrecht