Patents by Inventor Salvatore Rosa

Salvatore Rosa 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: 6286445
    Abstract: A unitary double-acting piston thread cutter assembly having a housing including an integrated cutter section and drive section forming a single unitary device. The thread cutter assembly includes a universal tension mount for releasably securing the thread cutter assembly to the top plate of a variety of different types and models of sewing machine. A V-shaped moveable blade has two sides with a pivot point defined at the intersection of the sides. Along one side of the moveable blade is disposed a cutting or knife edge. A double-acting piston and drive link are disposed longitudinally in the housing and connected so that they are both displaced at the same time.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: September 11, 2001
    Assignee: Clinton Industries, Inc.
    Inventors: Salvatore Rosa, Louis Malchiodi