Patents by Inventor Mark Andrew Wallace

Mark Andrew Wallace 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).

  • Fluid dispenser
    Patent number: 8163257
    Abstract: A cartridge (10) for dispensing a reagent contained in a reagent reservoir (32). The reservoir (32) is in fluid communication with a deformable dispense tube (26) that is a least partially compressible, in use, to dispense a volume of reagent from the tube (26). The reservoir (32) defines an enclosed gas space (46) above the reagent, and the cartridge (10) includes a gas vent (40) that, in use, admits gas to the gas space (46) in response to dispense of reagent from the tube (26) that serves to control the reservoir pressure as the reservoir (32) is depleted by subsequent dispensing of reagent. A dispenser employing the cartridge (10) and a method of dispensing a volume of reagent are also disclosed.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: April 24, 2012
    Assignee: IMI Vision Limited
    Inventors: Mark Andrew Wallace, Hugh Christopher Bramley, Mark John Jervis
  • FLUID DISPENSER
    Publication number: 20100015009
    Abstract: A cartridge (10) for dispensing a reagent contained in a reagent reservoir (32). The reservoir (32) is in fluid communication with a deformable dispense tube (26) that is a least partially compressible, in use, to dispense a volume of reagent from the tube (26). The reservoir (32) defines an enclosed gas space (46) above the reagent, and the cartridge (10) includes a gas vent (40) that, in use, admits gas to the gas space (46) in response to dispense of reagent from the tube (26) that serves to control the reservoir pressure as the reservoir (32) is depleted by subsequent dispensing of reagent. A dispenser employing the cartridge (10) and a method of dispensing a volume of reagent are also disclosed.
    Type: Application
    Filed: April 13, 2007
    Publication date: January 21, 2010
    Applicant: IMI VISION LIMITED
    Inventors: Mark Andrew Wallace, Hugh Christopher Bramley, Mark Jervis