Patents by Inventor Esten W. Spears, Jr.

Esten W. Spears, Jr. 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).

  • Patent number: 4226084
    Abstract: A turbofan engine has an exhaust arrangement for the bypassed air and turbine exhaust gases providing for mixing of the two before a common propulsion nozzle. The turbine exhaust gas is directed to a number of circumferentially spaced exhausts, the outlets of which are inclined to the axis of the engine. A baffle extending from the end of the bypass duct into the common exhaust duct divides the bypass air into a portion inside and a portion outside of the baffle, the former mixing initially with the turbine exhaust gases and the resulting mixture then being mixed with the remainder of the bypass air. The baffle includes lobes which extend downstream and inwardly so as to obscure the outlets of the turbine exhaust from the jet nozzle, thus minimizing thermal radiation through the nozzle.
    Type: Grant
    Filed: July 24, 1970
    Date of Patent: October 7, 1980
    Assignee: General Motors Corporation
    Inventor: Esten W. Spears, Jr.
  • Patent number: 4022541
    Abstract: A diffuser for association with a centrifugal compressor includes a circumferentially disposed array of like, individual diffuser vanes each having integrally formed opposed flange pairs thereon joined by a bridge segment having a continually increasing depth from an inlet end of each of the vanes to the outlet end thereof. Adjacent ones of the vanes have their flange pairs juxtaposed to form a three-dimensional air flow passage between each of the vanes and wherein each vane has a spiral formed inlet wall pair extending radially inwardly at the inlet of each vane to form a spiral configured open inlet path into each of the three dimensional flow passages; the individual vanes being held in the circumferentially disposed array by spaced apart side support plates and fastening means directed through each of the side support plates and the bridge segments of each of the vanes.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: May 10, 1977
    Assignee: General Motors Corporation
    Inventors: Wallace Perrigo, Esten W. Spears, Jr.
  • Patent number: 4008568
    Abstract: A combustor assembly includes a porous, laminated metal dome and an elongated tubular body portion disposed vertically within an air supply plenum. The dome and body portion are joined by a yieldable ring and a plurality of radially inwardly directed convolutions on one end of the body portion. A load support member is telescoped over the upper end of the dome and includes a tubular axial extension with a plurality of radially inwardly directed convolutions connected to the body portion and wherein the support member includes a plurality of radially outwardly directed spider arms extending from a support flange on the upper end of the support member secured to a fixed fuel nozzle pad whereby the porous laminated metal dome is supported for free flex movement with respect to the pad during combustor operation.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: February 22, 1977
    Assignee: General Motors Corporation
    Inventors: Esten W. Spears, Jr., Eugene R. Young