Patents by Inventor Robert L. Seaman

Robert L. Seaman 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: 5309782
    Abstract: A manual transmission mechanism adapted for use in an engine-driven automotive vehicle comprising a mainshaft and a countershaft, gearing arranged on each of said shafts, and synchronizer clutch structure which is arranged to accommodate a shift linkage mechanism for actuating the synchronizer clutch sleeve so the synchronizer clutch arrangement makes possible a location of the driver-operated shift linkage in close proximity to the synchronizer clutch sleeves and permits an efficient shift pattern for the driver-controlled shifter and a simplified assembly of the linkage mechanism.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: May 10, 1994
    Assignee: Borg-Warner Automotive, Inc.
    Inventor: Robert L. Seaman
  • Patent number: 5291799
    Abstract: A manual transmission mechanism adapted for use in an engine-driven automotive vehicle comprising a mainshaft and a countershaft, gearing arranged on each of said shafts, and synchronizer clutch structure which is arranged to accommodate a shift linkage mechanism for actuating the synchronizer clutch sleeve so the synchronizer clutch arrangement which makes possible a location of the driver-operated shift linkage in close proximity to the synchronizer clutch sleeves, permitting an efficient shift pattern for the driver-controlled shifter and permitting a simplified assembly of the linkage mechanism with minimum stack-up tolerance errors.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: March 8, 1994
    Assignee: Borg-Warner Automotive, Inc.
    Inventor: Robert L. Seaman
  • Patent number: 5284067
    Abstract: A gear transmission adapted for use in an engine-driven automotive vehicle includes a mainshaft and a countershaft, a transmission casing having axially spaced bearing support structures, meshing gear elements on the mainshaft and countershaft to establish torque flow paths, and a support having first and second bearing openings therein through which the mainshaft and countershaft extend whereby the mainshaft and countershaft are supported intermediate the ends of the mainshaft and countershaft so that center distance between the shafts is maintained as is the center distance of meshing gears notwithstanding gear tooth separating forces acting transversely with respect thereto.
    Type: Grant
    Filed: December 15, 1992
    Date of Patent: February 8, 1994
    Assignee: Borg-Warner Automotive, Inc.
    Inventor: Robert L. Seaman
  • Patent number: 4289213
    Abstract: An angular output transfer case incorporates an internal single cardan joint within the transfer case housing. The internal single cardan joint is coupled with an angularly oriented output shaft, and has a fixed included angle. An external single cardan joint without the housing couples the output shaft with a propeller shaft, and thus has a dynamic included angle. The joints are phased ninety degrees, and are related such that the fixed included angle is equal to the dynamic included angle at an optimum design condition.
    Type: Grant
    Filed: December 21, 1979
    Date of Patent: September 15, 1981
    Assignee: Borg-Warner Corporation
    Inventor: Robert L. Seaman