Patents by Inventor Richard W. Schofield

Richard W. Schofield 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: 7252223
    Abstract: A system and method for loading, transferring and redeeming value whereby two different systems of stored value accounts, one system being on a major network and the second system being on a secondary network, are linked, providing multiple paths to perform critical operations.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: August 7, 2007
    Assignee: Air-Bank LLC
    Inventor: Richard W. Schofield
  • Patent number: 5472613
    Abstract: There is disclosed a method for removing a volatile component from a feed or process stream comprising (1) absorbing or adsorbing the volatile component into an absorbent or adsorbent material in an equilibrium process, wherein feed is pumped through a mixture chamber of a device, wherein the device comprises the mixture chamber and a vapor chamber, wherein the mixture chamber comprises a plurality of films comprising absorbent or adsorbent materials, wherein the film is configured to have a first side communicating with the mixture chamber and a second side communicating with the vapor chamber, and (2) removing the volatile component from the absorbent or adsorbent material by applying heat to the mixture chamber and simultaneously applying a gas phase within the vapor chamber such that the volatile component is collected in a gaseous state in the vapor chamber.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: December 5, 1995
    Assignee: EnviroSep Inc.
    Inventor: Richard W. Schofield
  • Patent number: 5236474
    Abstract: A process for removing and recovering a condensable vapor from a gas stream by a membrane contactor is disclosed wherein a gas stream containing a condensable vapor is circulated on one side of hollow fiber membranes while cool extraction fluid is circulated on the other side under a total pressure differential, thereby condensing the condensable vapor in the gas stream, the condensed vapor permeating the membrane and becoming entrained in the cool extraction fluid.
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: August 17, 1993
    Assignee: Bend Research, Inc.
    Inventors: Richard W. Schofield, David D. Newbold, Scott B. McCray, Dwayne T. Friesen, Roderick J. Ray
  • Patent number: 5069788
    Abstract: A blood washing and plasma separation device and method are disclosed, which utilize lumen-side fed hollow fiber membranes in multiple separation passes in conjunction with countercurrent flow wash injection.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: December 3, 1991
    Assignee: Pfizer Hospital Products Groups, Inc.
    Inventors: John M. Radovich, Richard W. Schofield
  • Patent number: 5017293
    Abstract: A blood washing and plasma separation device and method are disclosed, which utilize lumen-side fed hollow fiber membranes in multiple separation passes in conjunction with countercurrent flow wash injection.
    Type: Grant
    Filed: August 24, 1989
    Date of Patent: May 21, 1991
    Assignee: Pfizer Hospital Products Group, Inc.
    Inventors: John M. Radovich, Richard W. Schofield
  • Patent number: 4133167
    Abstract: This invention concerns cable making machines and relates to a machine incorporating both twisting and cabling mechanisms. The apparatus is designed to enable the lapping section of the machine to be isolated from the twisting section in order that the machine can be used selectively for both twisting and lapping or twisting only. Common drive means is provided for the machine such drive means including, for example, a clutch for isolating the drive to the lapping section of the machine when required.
    Type: Grant
    Filed: June 9, 1977
    Date of Patent: January 9, 1979
    Assignee: The General Engineering Co. (Radcliffe) Limited
    Inventor: Richard W. Schofield