TREA

Robert A. Hay II

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  • Midland, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Floating ring labyrinth-type dynamic shaft seal and process for usi...
    • Patent number 5,046,718
    • Issue date Sep 10, 1991
    • The Dow Chemical Company
    • Robert A. Hay
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Method for the devolatilization of thermoplastic materials
    • Patent number 4,952,672
    • Issue date Aug 28, 1990
    • The Dow Chemical Company
    • Eugene R. Moore
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Centrifugal devolatilizer
    • Patent number 4,940,472
    • Issue date Jul 10, 1990
    • The Dow Chemical Company
    • Robert A. Hay
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Apparatus for restraining rotary motion of a motor component
    • Patent number 4,759,262
    • Issue date Jul 26, 1988
    • The Dow Chemical Company
    • Robert A. Hay
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Waste disposal apparatus
    • Patent number 4,647,213
    • Issue date Mar 3, 1987
    • The Dow Chemical Company
    • Robert A. Hay
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Film casting apparatus including heat transfer roll
    • Patent number 4,631,016
    • Issue date Dec 23, 1986
    • The Dow Chemical Company
    • Robert A. Hay
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Seal assembly which is hydraulically actuated
    • Patent number 4,575,100
    • Issue date Mar 11, 1986
    • The Dow Chemical Company
    • Robert A. Hay
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Apparatus for the flexibilization of synthetic resinous foam
    • Patent number 4,505,662
    • Issue date Mar 19, 1985
    • The Dow Chemical Company
    • Robert A. Hay
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Tubing perforator
    • Patent number 4,499,749
    • Issue date Feb 19, 1985
    • The Dow Chemical Company
    • Robert A. Hay
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Flat plate heat exchange apparatus
    • Patent number 4,423,767
    • Issue date Jan 3, 1984
    • The Dow Chemical Company
    • Robert A. Hay
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Heat sealing apparatus and method
    • Patent number 4,419,167
    • Issue date Dec 6, 1983
    • The Dow Chemical Company
    • Robert A. Hay
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Heating elements for thermoplastic lamination
    • Patent number 4,368,093
    • Issue date Jan 11, 1983
    • The Dow Chemical Company
    • Robert A. Hay
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method for the lamination of foam including a reinforcing scrim
    • Patent number 4,363,684
    • Issue date Dec 14, 1982
    • The Dow Chemical Company
    • Robert A. Hay
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Extruded plastic foam shaping apparatus
    • Patent number 4,292,019
    • Issue date Sep 29, 1981
    • The Dow Chemical Company
    • Robert A. Hay
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Electromagnet tool for retrieving magnetic objects from an earth ca...
    • Patent number 4,225,171
    • Issue date Sep 30, 1980
    • The Dow Chemical Company
    • Robert A. Hay
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Foam welding apparatus
    • Patent number 4,175,998
    • Issue date Nov 27, 1979
    • The Dow Chemical Company
    • Robert A. Hay
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Apparatus for insulation of structures
    • Patent number 4,098,635
    • Issue date Jul 4, 1978
    • The Dow Chemical Company
    • Robert A. Hay
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Method of insulating a container
    • Patent number 4,075,264
    • Issue date Feb 21, 1978
    • The Dow Chemical Company
    • Robert A. Hay
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
  • Information Patent Grant

    Heat sealing means
    • Patent number 4,062,718
    • Issue date Dec 13, 1977
    • The Dow Chemical Company
    • Robert A. Hay
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Laminate preparation and application thereof
    • Patent number 4,049,852
    • Issue date Sep 20, 1977
    • The Dow Chemical Company
    • Hubert Stacy Smith
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS