Patents Assigned to Pickering Controls, Inc.
  • Patent number: 5089930
    Abstract: A differential transformer is provided comprising an elongated bobbin having primary and secondary coils wound about separated sections. A ferromagnetic armature is movably disposed within a core of the bobbin for movement between the separated sections. A tube of electrically conducting material surrounds the bobbin core. The tube is formed of a material whose resistance varies with temperature in the same manner as the primary coil.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: February 18, 1992
    Assignee: Pickering Controls, Inc.
    Inventor: Jacob Chass