Patents by Inventor Michael Ringwald

Michael Ringwald 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: 5029456
    Abstract: To provide for overall resiliency of a low-profile knitting needle in which the shank (7) has rib portions (16a, 16b) of which one is not more than 1.1 mm in height, the rib portions with spaced guide portions (12) defining therebetween an open window (15), which window is filled with a vibration and shock absorbing material (17) while ensuring retention of the shock absorbing material, one of the rib portions (16a, 16b) is formed with a through-slit (18), the vibration or shock damping material (17) being securely retained within the window without, however, a second rib portion reducing the resiliency of the needle and its ability to absorb shock and vibration transmitted along the length of the shank in operation of the needle in the knitting machine. The slit (18) can be placed at the end of the rib portion, adjacent a guide portion (12), centrally or at any other location along the length of the rib portion.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: July 9, 1991
    Assignee: Theodor Groz & Ernst Beckert Nadelfabrik KG
    Inventors: Siegmund Sos, Albert Bausch, Michael Ringwald