Patents by Inventor Herbert Frederick Asplund

Herbert Frederick Asplund 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).

  • Interblade damper and seal for turbomachinery rotor
    Patent number: 4101245
    Abstract: An interblade seal and vibration damper to be positioned in the damper cavity defined between a rotor disc, adjacent blades and adjacent blade platforms so as to seal across an interplatform gap by providing line contact between the damper and the platforms on opposite sides thereof for the full axial dimension of the cavity and with the damper shaped so as to have a low center of gravity for operational stability and which damper also responds to centrifugal force during rotor operation to establish damping friction between said damper and said platforms when the platforms move circumferentially.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: July 18, 1978
    Assignee: United Technologies Corporation
    Inventors: John R. Hess, Herbert Frederick Asplund
  • Gas turbine construction
    Patent number: 4083648
    Abstract: A gas turbine consisting of alternate stators and rotors so fabricated that all stator vanes, all rotor blades and all blade tip seals may be removed through the engine case without requiring disassembly or translation of major portions of the gas turbine engine.
    Type: Grant
    Filed: December 3, 1976
    Date of Patent: April 11, 1978
    Assignee: United Technologies Corporation
    Inventor: Herbert Frederick Asplund
  • Gas turbine construction
    Patent number: 4011718
    Abstract: A gas turbine consisting of alternate stators and rotors so fabricated that all stator vanes, all rotor blades and all blade tip seals may be removed through the engine case without requiring disassembly or translation of major portions of the gas turbine engine.
    Type: Grant
    Filed: August 1, 1975
    Date of Patent: March 15, 1977
    Assignee: United Technologies Corporation
    Inventor: Herbert Frederick Asplund