Patents by Inventor David Dressel

David Dressel 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).

  • Method and apparatus for applying a foam layer
    Publication number: 20070080171
    Abstract: A system for applying a layer of foam comprises a first fluid supply supplying a first stream of a first fluid in a first supply line, a first flow divider splitting said first stream into primary and secondary streams, a second fluid supply supplying a second fluid in a second supply line, a second flow divider splitting said second stream into primary and secondary streams, a first mix head combining the primary stream of the first fluid with the primary stream of the second fluid, and a second mix head combining the secondary stream of the first fluid with the secondary stream of the second fluid.
    Type: Application
    Filed: January 21, 2004
    Publication date: April 12, 2007
    Applicant: BASF Corporation
    Inventors: David Dressel, Peter Longtin
  • Azeotrope-like compositions of tetrafluoroethane, pentafluoropropane and water
    Patent number: 6638987
    Abstract: This invention provides azeotrope-like compositions of 1,1,1,2-tetrafluoroethane, 1,1,1,3,3-pentafluoropropane-245fa and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: October 28, 2003
    Assignee: Honeywell International, Inc.
    Inventors: Mary C. Bogdan, Gary M. Knopeck, Hang T. Pham, Rajiv R. Singh, David Dressel, David J. Williams