Patents by Inventor Bruce R. Branstrom

Bruce R. Branstrom 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).

  • Rotary machine having back to back turbines
    Patent number: 5156534
    Abstract: A rotary machine having a pair of back to back turbines in serial flow relationship is disclosed. Various construction details are developed which permit for a compact design. In one detailed embodiment the turbine has a housing having an inlet manifold and an exit manifold which are disposed between the outlet manifold for an associated turbopump.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: October 20, 1992
    Assignee: United Technologies Corporation
    Inventors: N. Frank Burgy, Alfred M. Palgon, Bruce R. Branstrom
  • Vaneless contrarotating turbine
    Patent number: 5077968
    Abstract: First turbine stage 14 rotates at low speed, doing moderate work, and driving a low pressure pump (22). Second turbine stage 16 rotates at high speed, doing a major portion of the work, and drives a high pressure pump (28). The low speed pump is compatible with suction requirements, and the second turbine stage does the substantial work at high efficiency.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: January 7, 1992
    Assignee: United Technologies Corporation
    Inventor: Bruce R. Branstrom