Patents by Inventor Robert T. Bohm

Robert T. Bohm 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).

  • Spring clutch
    Publication number: 20040168876
    Abstract: A spring clutch has a housing containing first and second sleeves surrounding first and second longitudinal spans of a coil spring. A carrier mounting at least one of the sleeves relative to the housing flexes to maintain alignment of axes of the sleeves to control forces on the portion of the spring spanning the gap between the sleeves.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 2, 2004
    Inventors: Thomas L. Tully, Ruth H. Durwin, Charles J. Isabelle, Robert T. Bohm, Robert J. Durwin
  • Method and apparatus for controlling lateral vibration in a rotating shaft
    Patent number: 6033312
    Abstract: A method and apparatus for controlling lateral vibration in a rotating shaft, wherein the lateral vibration is controlled through the disposition of a mass having a predetermined weight in combination with the rotating shaft such that the first order critical frequency of the shaft is decreased below an operating frequency range for the rotating shaft. The mass is disposed in combination with the shaft at a second order critical frequency node such that the disposition of the mass does not decrease the second order critical frequency.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: March 7, 2000
    Assignee: Sikorsky Aircraft Corporation
    Inventor: Robert T. Bohm