Patents by Inventor Brian Kenneth Sward

Brian Kenneth Sward 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).

  • Portable oxygen concentration system and method of using the same
    Patent number: 6691702
    Abstract: A portable oxygen concentrator system adapted to be readily transported by a user includes a rechargeable energy source and a concentrator powered by the energy source. The concentrator converts ambient air into concentrated oxygen gas for the user and includes a plurality of adsorption beds and a rotary valve assembly. The rotary valve assembly is relatively rotatable with respect to the plurality of adsorption beds to provide valving action for selectively transferring fluids through the plurality of adsorption beds for converting ambient air into concentrated oxygen gas for the user. The ratio of adiabatic power to oxygen flow for the concentrator is in the range of 6.2 W/LPM to 23.0 W/LPM.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: February 17, 2004
    Assignees: SeQual Technologies, Inc., Teijin Limited
    Inventors: William Scot Appel, David Phillip Winter, Brian Kenneth Sward, Masato Sugano, Edmund Salter, James A. Bixby
  • Portable oxygen concentration system and method of using the same
    Publication number: 20030005928
    Abstract: A portable oxygen concentrator system adapted to be readily transported by a user includes a rechargeable energy source and a concentrator powered by the energy source. The concentrator converts ambient air into concentrated oxygen gas for the user and includes a plurality of adsorption beds and a rotary valve assembly. The rotary valve assembly is relatively rotatable with respect to the plurality of adsorption beds to provide valving action for selectively transferring fluids through the plurality of adsorption beds for converting ambient air into concentrated oxygen gas for the user. The ratio of adiabatic power to oxygen flow for the concentrator is in the range of 6.2 W/LPM to 23.0 W/LPM.
    Type: Application
    Filed: April 29, 2002
    Publication date: January 9, 2003
    Applicant: SeQual Technologies, Inc.
    Inventors: William Scot Appel, David Phillip Winter, Brian Kenneth Sward, Masato Sugano, Edmund L. Salter, James A. Bixby