Patents by Inventor Peter M. Pfyffer

Peter M. Pfyffer 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: 4477032
    Abstract: For disturbance-free insertion of threads (49a-49d) into a winding device (2) and for simultaneously taking over the threads on the bobbin tubes (5), the threads (49a-49d) are placed, using a suction gun (74), from the eyelets (70) (thread guides) provided at the apex of the traversing triangle, onto thread guide pins (51) mounted on a shiftable rail, which for the insertion into the winding device (2) is located at the free end of the bobbin chuck. Subsequently these guide pins (51) move the threads (49a-49d), as the rail (48) is shifted back, into such a position in front of the catching means (6), that the threads (49a-49d) are taken over by stationary, but pivotably arranged thread guides (41 or 79 respectively), from the guide pins 71, and are brought jointly, using a further pivoting movement, into the catching means (6).
    Type: Grant
    Filed: June 15, 1982
    Date of Patent: October 16, 1984
    Assignee: Rieter Machine Works, Ltd.
    Inventors: Peter M. Pfyffer, Albert Ruegg