Patents Assigned to General Dispensing Systems Limited
  • Infuser
    Patent number: 4928584
    Abstract: An infuser comprises movable screen means, which is preferably a continuous mesh belt (1) passing around rollers (2). Infusible solid and infusing liquid are deposited onto the screen means (1) and means (5) below the screen collect the infusion. A piezo electric sandwich transducer (9) is provided for imparting ultrasonic vibrations to the screen to cause vibration of the screen means to aid cleaning thereof.
    Type: Grant
    Filed: December 27, 1988
    Date of Patent: May 29, 1990
    Assignee: General Dispensing Systems Limited
    Inventor: Michael J. R. Young
  • Fluid flow control valve
    Patent number: 4653525
    Abstract: There is disclosed a control valve having an inlet 24, an outlet 26 connected a a valve cavity 23. The valve includes an armature 31 of a solenoid 32, movement of which opens a valve seal 28 seated in valve seat 27. A piezoceramic transducer 21 transmits ultrasonic vibrations through a tapering output section 22 to the valve cavity, whereby cavitation is induced in liquid therin to cause cleaning of the surfaces.
    Type: Grant
    Filed: November 19, 1985
    Date of Patent: March 31, 1987
    Assignee: General Dispensing Systems Limited
    Inventor: Michael J. R. Young
  • Transport system for material in powder or like form
    Patent number: 4648557
    Abstract: There is disclosed a transport system for material in powdered, particulate, granular or the like form. A generally horizontal flow channel extends from an inlet (20) to an outlet (11) for the material. An ultrasonic standing wave is set up in the body (10) surrounding the flow channel by means of a piezo-ceramic transducer (12). The standing wave is arranged to have an antinode at or near the inlet and a node at or near the outlet whereby the material flows along the channel.
    Type: Grant
    Filed: May 16, 1985
    Date of Patent: March 10, 1987
    Assignee: General Dispensing Systems Limited
    Inventor: Michael J. R. Young