Patents by Inventor Herbert Heise

Herbert Heise 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).

  • Helicopter rotor spindle retention assembly
    Patent number: 4668115
    Abstract: A threadless retention apparatus holds a spindle (2) against a bearing (22) in a helicopter hub and has a split ring (10) mating with an annular spindle groove (4) and a loading hoop (32) holding the ring (10) within the groove (4), the loading hoop (32) locating the ring (10) and spindle (2) in relation to the bearing (10) as a unit.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: May 26, 1987
    Assignee: United Technologies Corporation
    Inventors: Donald L. Ferris, Herbert Heise