Patents by Inventor Charles R. Hart

Charles R. Hart 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: 5130189
    Abstract: An imagable copy film comprises a film substrate of a thermoplastics polymeric material with a percentage thermal expansion in the film widthwise direction (TD) at 150.degree. C. of 0.01 to 1.0%, and a percentage thermal shrinkage in the film lengthwise direction (MD) at 150.degree. C. of 0.4 to 2.0%. The substrate has a receiving layer on at least one surface thereof, comprising an acrylic and/or methacrylic resin.
    Type: Grant
    Filed: July 12, 1990
    Date of Patent: July 14, 1992
    Assignee: Imperial Chemical Industries PLC
    Inventor: Charles R. Hart
  • Patent number: 5093309
    Abstract: A TTP receiver sheet having a backing layer comprising a polymeric resin binder and a non-film forming inert particulate material of mean particle size from 5 to 250 nm.
    Type: Grant
    Filed: July 12, 1989
    Date of Patent: March 3, 1992
    Assignee: Imperial Chemical Industries PLC
    Inventors: Charles R. Hart, John Francis, Mark D. H. Jefferson
  • Patent number: 5089347
    Abstract: A metallized film has a substrate layer of a synthetic polymeric material having, on at least one surface thereof, an adherent layer comprising a homopolymer and/or copolymer comprising styrene and/or a styrene derivative, the copolymer comprising at least one or more other ethylenically unsaturated comonomer which is copolymerizable with the styrene and/or styrene derivative. A metallic layer is on the surface of the at least one adherent layer, remote from the substrate.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: February 18, 1992
    Assignee: Imperial Chemical Industries PLC
    Inventor: Charles R. Hart
  • Patent number: 5037693
    Abstract: A metallized film has a substrate layer of a synthetic polymeric material, having on at least one surface thereof, an adherent layer comprising a copolymer containing styrene and/or a styrene derivative, and at least one ethylenically unsaturated comonomer copolymerizable therewith, the copolymer comprising at least one free functional acid group. A metallic layer is on the surface of the at least one adherent layer, remote from the substrate.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: August 6, 1991
    Assignee: Imperial Chemical Industries PLC
    Inventor: Charles R. Hart
  • Patent number: 5035945
    Abstract: A metallized film has a substrate layer of a synthetic polymeric material, and on at least one surface thereof an adherent layer of an acrylic or methacrylic copolymer, the copolymer comprising(a) a comonomer selected from acrylic acid, methacrylic acid or a derivative of acrylic acid or methacrylic acid,(b) a copolymerizable sulphonated ethylenically unsaturated comonomer, and optionally(c) an additional comonomer, said comonomers (a) and (b) being present in the respective molar percentages in the ranges (a) 26 to 99% and (b) 1 to 50%.A metallic layer is on the surface of the at least one adherent layer, remote from the substrate.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: July 30, 1991
    Assignee: Imperial Chemical Industries plc
    Inventor: Charles R. Hart
  • Patent number: 5016893
    Abstract: A collapsible support and transport stand is provided to receive a personal watercraft, such as a jet ski, water scooter, or the like from the back of a pick-up truck, for example, and to transport the personal watercraft into the water over typical beach terrain. The stand includes a cradle upon which the personal watercraft is supported and a plurality of telescoping legs which extend to a pair of skids having a plurality of spring biased retractable wheels. The telescoping legs are maintained in their support position transverse to the cradle by several telescoping cross members which extend therebetween. The cross members are adapted for disassembly to permit the legs to pivot to a stowed position underneath the cradle for ease of storage.
    Type: Grant
    Filed: February 12, 1990
    Date of Patent: May 21, 1991
    Inventor: Charles R. Hart, Jr.
  • Patent number: 4971863
    Abstract: A metallized polymeric film comprises a sulphonated copolyester intermediate adherent layer having an alkali metal content of not more than 0.005 gram atoms percent.
    Type: Grant
    Filed: October 27, 1988
    Date of Patent: November 20, 1990
    Assignee: Imperial Chemical Industries PLC
    Inventor: Charles R. Hart
  • Patent number: 4911296
    Abstract: A utility chest is provided for compact and safe storage of emergency supplies within the trunk of a standard passenger vehicle or the like. The utility chest comprises a main storage compartment which is subdivided by upright partitions into a plurality of individual subcompartments for receiving and storing emergency supply items such as fuel, oil, coolant, etc. A lower auxiliary compartment is adapted to receive a shallow drawer having tools and the like stored therein. In addition, a hinged lid for the utility chest desirably includes spring clip fasteners or the like at the underside thereof for supporting individual emergency supply items, such as safety fares.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: March 27, 1990
    Inventor: Charles R. Hart, Jr.
  • Patent number: 4819838
    Abstract: A combined spray tube and support assembly is provided for use with a spray container such as an aerosol can and the like. The assembly comprises an elongated spray tube adapted for removable seating within a discharge port of a spray nozzle unit on the spray container. When separated from the spray nozzle unit, the spray tube is removably retained by a support member on the spray container or on a cap for the spray container. In a preferred form, the support member comprises a vertically open support ring on the cap which cooperates with short outwardly projecting tabs near one end of the spray tube to support the spray tube alongside the spray container, with the tabs facilitating manipulation to seat the spray tube within the nozzle discharge port.
    Type: Grant
    Filed: April 8, 1987
    Date of Patent: April 11, 1989
    Inventor: Charles R. Hart, Jr.