Patents by Inventor Bradford K. Hess

Bradford K. Hess 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).

  • Liquid degassing system
    Patent number: 4955992
    Abstract: A liquid degassing system including a liquid reservoir having an inlet to receive a liquid to be degassed and an outlet through which degassed liquid may flow. A vacuum source is controllably connected through a valve to the reservoir to draw gas out of the liquid held within the reservoir. A valve in a liquid inlet conduit supplying the reservoir may interrupt flow to the reservoir while vacuum is applied thereto. A second valve in an outlet conduit connected to the reservoir may interrupt flow from the reservoir when vacuum is applied to the reservoir.
    Type: Grant
    Filed: August 9, 1988
    Date of Patent: September 11, 1990
    Assignee: Beckman Instruments, Inc.
    Inventors: David L. Goodale, Bradford K. Hess