Patents by Inventor WALTER B. CWYCYSHYN

WALTER B. CWYCYSHYN 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).

  • Continuously variable rate fluid spring system for a vehicle, and method of operation
    Patent number: 11498383
    Abstract: A vehicle fluid spring system is adapted to absorb road shock imparted onto at least one road wheel of a vehicle. The vehicle fluid spring system includes a fluid spring and a variable volume unit. The fluid spring includes a fluid chamber adapted to change in volume. The variable volume unit including a rigid piston cylinder, a piston, a fluid cavity, and an actuator. The piston is adapted to reciprocate within, and is in sliding contact with, the rigid piston cylinder. The fluid cavity is defined by the piston cylinder and the piston. The actuator is adapted to drive the piston changing a volume of the fluid cavity. The fluid cavity is in fluid communication with the fluid chamber.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: November 15, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Larry G. Gepfrey, Andrei Balaceanu, Walter B. Cwycyshyn, Robert G. Izak
  • CONTINUOUSLY VARIABLE RATE FLUID SPRING SYSTEM FOR A VEHICLE, AND METHOD OF OPERATION
    Publication number: 20210252934
    Abstract: A vehicle fluid spring system is adapted to absorb road shock imparted onto at least one road wheel of a vehicle. The vehicle fluid spring system includes a fluid spring and a variable volume unit. The fluid spring includes a fluid chamber adapted to change in volume. The variable volume unit including a rigid piston cylinder, a piston, a fluid cavity, and an actuator. The piston is adapted to reciprocate within, and is in sliding contact with, the rigid piston cylinder. The fluid cavity is defined by the piston cylinder and the piston. The actuator is adapted to drive the piston changing a volume of the fluid cavity. The fluid cavity is in fluid communication with the fluid chamber.
    Type: Application
    Filed: February 13, 2020
    Publication date: August 19, 2021
    Inventors: Larry G. Gepfrey, Andrei Balaceanu, Walter B. Cwycyshyn, Robert G. Izak
  • Methods and apparatus for a suspension system with progressive resistance
    Patent number: 8439173
    Abstract: A suspension component achieves progressive resistance via a secondary bleed valve, which functions as a support for the primary compression valve at higher displacements, in conjunction with a secondary nonlinear spring element configured to alter the force on the piston at high displacements.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: May 14, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: William Golpe, Chandra S. Namuduri, Walter B. Cwycyshyn, Nikolai K. Moshchuk
  • METHODS AND APPARATUS FOR A SUSPENSION SYSTEM WITH PROGRESSIVE RESISTANCE
    Publication number: 20100072685
    Abstract: A suspension component achieves progressive resistance via a secondary bleed valve, which functions as a support for the primary compression valve at higher displacements, in conjunction with a secondary nonlinear spring element configured to alter the force on the piston at high displacements.
    Type: Application
    Filed: September 25, 2008
    Publication date: March 25, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: WILLIAM GOLPE, CHANDRA S. NAMUDURI, WALTER B. CWYCYSHYN, NIKOLAI K. MOSHCHUK