Patents by Inventor Siang Kiang Chan Beswick

Siang Kiang Chan Beswick 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).

  • High-pressure stem-actuated 2-way valve
    Patent number: 8371554
    Abstract: Stem-actuated two-way valve for precise, intermittent and repeatable delivery of fluid and/or gaseous substances from high pressure sources. A dual purpose o-ring functions as a valve seat and separates high pressure segments from low pressure segments. The novel valve stem system allows precise delivery of desired liquids and/or gases regardless of valve stem travel within a defined travel length.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: February 12, 2013
    Assignee: Beswick Engineering, Inc.
    Inventors: Gary A. Treadwell, Dale D. Ames, Margaret E. Tomaswick, Siang Kiang Chan Beswick