Patents by Inventor Philip I. Bisbee

Philip I. Bisbee 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).

  • Toroidal transformer insulation preforms
    Patent number: 5488344
    Abstract: Insulation tubing (66) having adjustable dimensions is disclosed. The insulation tubing has an outer tubular wall that defines a central opening for receiving the core (4) and windings (8) of a partially assembled toroidal transformer. The wall is formed by preformed sections (44, 62) of electrical insulating material (10-20). The preformed sections have overlapping surfaces that are slidably positioned relative to one another. In this way, the extent of the surfaces that overlap can be changed to alter the size of the opening such that conductive windings (8) of various sizes and configurations can be accommodated.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: January 30, 1996
    Inventors: Philip I. Bisbee, James D. Richerson, Stephen D. Smith, Eric S. Richardson