Patents by Inventor Richard A. Jurjevic

Richard A. Jurjevic 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).

  • Variable rate flow controller
    Patent number: 4609014
    Abstract: The rate at which a flow control valve maintains flow under varying pressures can be adjusted by positioning a resilient flow control washer on a valve seat and engaging the opposite surface of the washer with an adjustable member which can be moved toward and away from the valve seat to compress the washer in varying amounts and thereby alter the value at which the washer maintains a constant flow.
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: September 2, 1986
    Assignee: Vernay Laboratories, Inc.
    Inventors: Richard A. Jurjevic, William J. Schmidt