Patents by Inventor Orville M. Wiste

Orville M. Wiste 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: 5314732
    Abstract: A film providing electrostatic shielding comprises a first layer of a carrier material and a second layer of a thermoplastic, polymeric material, both layers being electrically insulative, flexible and transparent, and there further being a plurality of thin, conductive slivers suspended in the second layer. The slivers form an essentially two-dimensional, conductive network which is suspended in the second layer, and may be present in an amount as little as 2 g/m.sup.2. The slivers have a melting temperature greater than the melting temperature of the polymeric material, and the polymeric material has a melting temperature lower than that of the carrier material. The film passes at least 70% of visible light.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: May 24, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Orville M. Wiste
  • Patent number: 5165985
    Abstract: A method of making a flexible, transparent film providing electrostatic shielding by applying a plurality of thin, conductive slivers to a sheet having a dimensionally stable layer and a thermoplastic layer, the slivers being applied to the thermoplastic layer, and then laminating a cover sheet over the thermoplastic layer, the cover sheet being formed of the same material as the thermoplastic layer. The thermoplastic layer is heated to its melting pint, and the cover sheet is extruded and laminated in a molten state whereby the cover sheet blends with the thermoplastic layer to form a single, homogenous layer. The slivers form an essentially two-dimensional, conductive network which is suspended in the homogenous layer.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: November 24, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Orville M. Wiste, Santosh Collison, Vijay A. Kumar
  • Patent number: 4812948
    Abstract: A shoe ground strap which has a static dissipative exposed surface and offers protection against static charges building on the wearer and offers protection against electrical hazards if contacting a source of electrical power. The strap comprises a band comprising a conductive metal ribbon, a static dissipative material and an adhesive layer to aid in holding the strap to the shoe, with at least the surface and the two edges of the band covered by said static dissipative material to expose only the static dissipative material.
    Type: Grant
    Filed: March 15, 1988
    Date of Patent: March 14, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Gerald C. Bird, Orville M. Wiste