Patents by Inventor Donald Liness Walker

Donald Liness Walker 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).

  • Publication number: 20020059959
    Abstract: Apparatus for reducing fluid-borne noise in a hydraulic system that includes a housing that defines a hollow chamber, and inlet and outlet connections for in-line connecting the apparatus in a hydraulic fluid flow system. A resilient member is disposed within the housing and effectively divides the housing chamber into a first portion adjacent to the fluid inlet and outlet for receiving hydraulic fluid, and a second portion remote from the fluid inlet and outlet for containing gas under pressure. Pressure pulsations in the hydraulic fluid are reduced and at least partially absorbed by the combined effect of resiliency of the elastic member and compressibility of the contained gas.
    Type: Application
    Filed: January 8, 2002
    Publication date: May 23, 2002
    Inventors: Mohamad S. Qatu, Donald Liness Walker, Jack Abner