Patents by Inventor John George Chewins

John George Chewins 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).

  • Patent number: 8845575
    Abstract: A wound treatment apparatus includes a tray (10) having a region adapted to receive a patient's body part (e.g. a leg) for treatment, a spray head (22, 23) for applying a spray of a gas containing liquid onto the body part and a covered well (13) in the tray having inlets (18) for surplus liquid and gas from the spray. Outlets are provided in communication with the well for gas and liquid respectively for connection to a suction to draw surplus liquid and gas from the well, and a unitary coupling (20) provides a plurality of fluid connections including a liquid supply for the spray head and liquid and gas withdrawal from said well outlets.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: September 30, 2014
    Assignee: Bioquell UK Limited
    Inventors: John George Chewins, Allan Kenneth Frazer Grugon Hunt
  • Publication number: 20140100516
    Abstract: The invention relates to improvements in surface disinfection apparatus and in particular to apparatus which may be used to disinfect wounds using high concentration aqueous ozone. The Apparatus comprises application means for applying the fluid to the surface to be treated, fluid delivery means for delivering the fluid to said application means and catchment means for collecting the fluid after it has been applied to the surface. Fluid return means are provided for removing the fluid from the catchment means and means for creating a vacuum in the fluid return means. The apparatus further comprises a releasable coupling having two engagable parts and comprising a plurality of channels, at least one of which channels is connected to the fluid delivery means when the parts are engaged and at least another of which channels is connected to the fluid return means when the parts are engaged.
    Type: Application
    Filed: May 10, 2012
    Publication date: April 10, 2014
    Applicant: BIOQUELL UK LIMITED
    Inventors: Allan Kenneth Frazer Grugeon Hunt, John George Chewins
  • Publication number: 20140099384
    Abstract: The invention relates to improvements in apparatus and methods for producing ozone. The apparatus comprises: a differential pressure injector, a means for circulating aqueous fluid through the differential pressure injector and programmable control means. An ozone generator is provided for connection to an oxygen source via an oxygen delivery conduit and a first valve means is located in the oxygen delivery conduit. The ozone generator is fluidly connected to the differential pressure injector via an ozone delivery conduit and second valve means are located in the ozone delivery conduit. Pressure monitoring means are located between the ozone generator and the first valve means for providing a pressure measurement to the control means. The valve means and the fluid circulation means are operable to create a negative pressure in the oxygen and ozone delivery conduits and the pressure measurement is used by the control means to determine the integrity of the oxygen and ozone delivery conduits.
    Type: Application
    Filed: May 14, 2012
    Publication date: April 10, 2014
    Inventors: Allan Kenneth Frazer Grugeon Hunt, John George Chewins
  • Publication number: 20140056760
    Abstract: The invention relates to improvements in surface disinfection apparatus and methods and in particular to apparatus and methods which may be used to disinfect wounds using high concentration aqueous ozone. The method comprises the steps of flushing an ion exchange means with fluid from a fluid supply and directing the flushing fluid to waste; de-ionising fluid from the fluid supply by passing it through the ion exchange means and directing the process fluid to storage means; and purging the ion exchange means with gas to remove residual process fluid after the de-ionisation process has been completed.
    Type: Application
    Filed: May 14, 2012
    Publication date: February 27, 2014
    Applicant: BIOQUELL UK LIMITED
    Inventors: Allan Kenneth Frazer Grugeon Hunt, John George Chewins
  • Publication number: 20110238004
    Abstract: A wound treatment apparatus includes a tray (10) having a region adapted to receive a patient's body part (e.g. a leg) for treatment, a spray head (22, 23) for applying a spray of a gas containing liquid onto the body part and a covered well (13) in the tray having inlets (18) for surplus liquid and gas from the spray. Outlets are provided in communication with the well for gas and liquid respectively for connection to a suction to draw surplus liquid and gas from the well, and a unitary coupling (20) provides a plurality of fluid connections including a liquid supply for the spray head and liquid and gas withdrawal from said well outlets.
    Type: Application
    Filed: March 8, 2010
    Publication date: September 29, 2011
    Applicant: BIOQUELL UK LIMITED
    Inventors: John George Chewins, Allan Kenneth Frazer Grugon Hunt
  • Patent number: 7967800
    Abstract: An apparatus for disinfecting surfaces and in particular human and animal wounds, includes a contractor for accumulating concentrated ozonated water and systems to deliver ozonated water from the reservoir to a nozzle having one or more jets for delivering a spray of ozonated water on to the surface to be treated. The nozzle has an encircling shroud and systems are provided for withdrawing ozonated gas liberated at the nozzle from around the nozzle. A collection tray is provided which is located under the surface/wound to be treated to receive ozonated water flowing from the treatment region and where any residual ozone is broken down.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: June 28, 2011
    Assignee: Bioquell UK Limited
    Inventor: John George Chewins