Patents by Inventor Frederic B. Krafft

Frederic B. Krafft 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: 4709542
    Abstract: A method and apparatus for making a twisted cable of unlimited length. The apparatus which is operative for performing the method includes a rotating reel having a group of wires or filaments wound thereon, a flyer which rotates around the reel for unwinding the group of wires or filaments therefrom, and a gathering assembly rotating with the flyer for gathering the individual filaments or wires from the group and twisting them to form a cable. The apparatus further includes a take-up assembly for drawing the cable from the gathering assembly and winding it on a take-up reel, and a control assembly for controlling the rotational speed of the flyer relative to the rotational speed of the reel to achieve a substantially uniform length of twist in the cable throughout its extent.
    Type: Grant
    Filed: April 22, 1986
    Date of Patent: December 1, 1987
    Assignee: The Entwistle Company
    Inventor: Frederic B. Krafft