Patents by Inventor William I. Chapman

William I. Chapman 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).

  • Gas turbine engine recuperator
    Patent number: 6293338
    Abstract: A recuperator for a gas turbine engine comprises a plurality of cells that are orientated in an annular array and attached to one another at only the radially inner edges thereof. Each cell comprises a high pressure plate having spaced integral ribs thereon defining a plurality of low temperature compressed air passages and a low pressure plate having a plurality of spaced ribs defining a plurality of high temperature exhaust gas passages.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: September 25, 2001
    Assignee: Williams International Co. L.L.C.
    Inventors: William I. Chapman, Samuel B. Williams
  • Nonlinear spring supported hydrodynamic bearing
    Patent number: 5205652
    Abstract: A compliant hydrodynamic gas bearing comprises a nonlinear spring arrangement for supporting a plurality of tilting arcuate pads which hydrodynamically carry radial journal loads. The nonlinear spring support arrangement enables the bearing to provide increasing load-deflection capacity under extreme loads to limit deflection to a predetermined clearance. The spring arrangement provides nonlinear load-deflection capabilities while operating with a designed constant bending stress.
    Type: Grant
    Filed: August 18, 1992
    Date of Patent: April 27, 1993
    Assignee: Williams International Corporation
    Inventor: William I. Chapman
  • Integrated propulsion system
    Patent number: 5150569
    Abstract: A propulsion system comprises a gas turbine engine having sructurally integrated support systems that maximize structural efficiency and minimize cost.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: September 29, 1992
    Assignee: Williams International Corporation
    Inventor: William I. Chapman
  • Foldable propulsion system
    Patent number: 4979876
    Abstract: An improved blade folding system for a propfan propulsion system comprises a fan blade journaled for rotation from a folded position substantially tangentially related to the housing of an engine to a radially extending run condition.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: December 25, 1990
    Assignee: Williams International Corporation
    Inventor: William I. Chapman
  • Rotary fuel injection system
    Patent number: 4870825
    Abstract: A fuel slinger for a gas turbine is provided with a hydraulic fuel trap within the U-shaped cross section thereof to inject fuel metered by a low pressure fuel system into a combustion chamber at relatively higher pressure.
    Type: Grant
    Filed: June 9, 1988
    Date of Patent: October 3, 1989
    Assignee: Williams International Corporation
    Inventor: William I. Chapman
  • Shoe box
    Patent number: D524641
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: July 11, 2006
    Assignee: Headstart Entertainment
    Inventors: Aulsondro L. Hamilton, William I. Chapman, II, Martin D. Woods