Patents Assigned to Beswick Engineering, Inc.
  • 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
  • Patent number: 7131459
    Abstract: A multi-port valve is disclosed having a ball bearing support system for a stator/rotor/valve stem assembly within a valve housing. Slipper seals or alternatively, poppet seals, connect a plurality of apertures situated in the rotor and a plurality of apertures situated in the adjoining stator so that a common central fluid receiving channel of the stator can be connected to a peripheral fluid delivery channel of the stator via a transfer channel in the rotor. The valve assembly provides a durable, virtually leak-proof system for delivery of a variety of fluids through the same delivery channel.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: November 7, 2006
    Assignee: Beswick Engineering, Inc.
    Inventors: Paul R. Beswick, Gary A. Treadwell
  • Patent number: 6786465
    Abstract: A valve for controlling the rate of fluid flow therethrough by rotating a rotor about a spindle having an inlet bore in communication with an eccentrically oriented o-ring set into an eccentrically oriented slot formed in the rotor. The perimeter of the eccentric slot is modified to provide customized unique fluid flow response curves.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: September 7, 2004
    Assignee: Beswick Engineering, Inc.
    Inventors: Paul R. Beswick, Gary A. Treadwell
  • Patent number: 6725881
    Abstract: A multi-port valve is disclosed having a ball bearing support system for a stator/rotor/valve stem assembly within a valve housing. Slipper seals or alternatively, poppet seals, connect a plurality of apertures situated in the rotor and a plurality of apertures situated in the adjoining stator so that a common central fluid receiving channel of the stator can be connected to a peripheral fluid delivery channel of the stator via a transfer channel in the rotor. The valve assembly provides a durable, virtually leak-proof system for delivery of a variety of fluids through the same delivery channel.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: April 27, 2004
    Assignee: Beswick Engineering, Inc.
    Inventors: Paul R. Beswick, Gary A. Treadwell