Patents by Inventor James Mitchell Pees

James Mitchell Pees 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: 5944154
    Abstract: A suspension damper includes a piston that is reciprocally carried in a circular cylindrical cylinder tube. The piston is attached to a piston rod that extends out from the cylinder tube and is adapted for connection to one of the sprung or unsprung masses of an associated vehicle. The circular cylindrical cylinder tube is carried in a reservoir tube that is adapted for connection to the other of the sprung and unsprung masses. The reservoir tube includes a section with a polygonal cross section and includes an open end with a circular cross section. The open end is closed by a rod guide assembly that engages the reservoir tube and the cylinder tube. The reservoir tube includes a closed end opposite the open end that is optionally polygonal or circular in configuration.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: August 31, 1999
    Assignee: General Motor Corporation
    Inventors: James Mitchell Pees, David Adolph Bobinger
  • Patent number: 5709290
    Abstract: A monotube damper valve is provided which is capable of operating with a higher degree of preloading and a greater extent of disc deflection due to the provision of compression and extension stop surfaces which uniformly support the disc in its naturally deflected state at both limits of deflection travel.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: January 20, 1998
    Assignee: General Motors Corporation
    Inventors: Edward Charles Ekert, James Mitchell Pees
  • Patent number: 5706920
    Abstract: A suspension damper of the monotube gas charged shock type includes mating piston and rod guide assemblies and mating piston and gas cup assemblies wherein the extension and compression travel of the damper is maximized. The piston includes an annular skirt with a lower rebound cutoff element. The rod guide assembly includes twin spaced apart bushing assemblies providing lateral support to the piston rod, a lower annular leg and an upper rebound cutoff element. When the damper is in a fully extended position, the lower annular leg is received within the upper rebound cutoff element and the upper rebound cutoff element is received within the annular skirt of the piston assembly.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: January 13, 1998
    Assignee: General Motors Corporation
    Inventors: James Mitchell Pees, George Thomas Claude, Joel Ray Wells, Claude H. Cheatham
  • Patent number: 5678808
    Abstract: A gas charged monotube strut carries the accumulator outside the damper's cylinder tube and within the strut mount. A substantially direct flow path is provided between the damper and the accumulator through the damper's piston rod. Air to oil separation is maintained by a gas cup and a low profile of packaging is provided.
    Type: Grant
    Filed: September 18, 1995
    Date of Patent: October 21, 1997
    Assignee: General Motors Corporation
    Inventors: George Thomas Claude, James Mitchell Pees
  • Patent number: 5638927
    Abstract: A suspension damper includes an integral one-piece reservoir tube arrangement which provides a self-centering feature for the internal components of the damper, supports the loading on those internal components for proper functioning of the twin-tube type damper and applies for a preload force through the internal components.
    Type: Grant
    Filed: September 18, 1995
    Date of Patent: June 17, 1997
    Assignee: General Motors Corporation
    Inventors: Claude H. Cheatham, James Mitchell Pees, Joel Ray Wells