Patents by Inventor Jack Briggs

Jack Briggs 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).

  • Thrust bearing
    Patent number: 4322117
    Abstract: Thrust bearings need to be under axial load to prevent skidding of the balls in the races. In a gas turbine engine, the thrust bearings between relatively rotatable shafts can experience zero load as engine conditions vary. A permanent load is therefore applied by causing an extension 38 of cage 22 to run in an oil reservoir 30. The resultant drag applies a torque to the cage and affects its speed of rotation relative to that of the shafts 10 and 14.
    Type: Grant
    Filed: October 10, 1980
    Date of Patent: March 30, 1982
    Assignee: Rolls-Royce Limited
    Inventor: Jack Briggs