Patents by Inventor Hans Rolaussf

Hans Rolaussf 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).

  • Embroidery machine
    Patent number: 4476793
    Abstract: An embroidery machine having a plurality of embroidery bars, particularly needle and piercer bars, which are mounted for axial displacement independently of each other and arranged in at least one row alongside of each other, which bars can be coupled individually with a reciprocating drive element in accordance with a program determined by a control. In order to be able to couple each individual embroidery bar with the drive element in accordance with any desired unlimited number of programs without having to stop the drive in order to change the program, each individual embroidery bar can be coupled with the drive element by the force of at least one magnet.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: October 16, 1984
    Assignee: Maschinenfabrik Karl Zangs AG
    Inventors: Hans Conrads, Josef Hoffmans, Hans Hippel, Hubert Hoven, Hans Rolaussf, Max Schafer