Patents by Inventor Malcom J. Rigby

Malcom J. Rigby 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).

  • Glass coating apparatus
    Patent number: 4995340
    Abstract: An apparatus for coating flat glass by directing a reactant gas over the glass surface incorporates a gas flow restrictor which comprises a chamber which is adapted to receive a supply of reactant gas and is adapted to output a flow of the reactant gas over the flat glass being coated. A series of at least two restrictions is provided in the gas flow restrictor, each restriction comprising a plate member extending across the chamber and having a plurality of apertures therethrough.
    Type: Grant
    Filed: October 12, 1989
    Date of Patent: February 26, 1991
    Assignee: Pilkington PLC
    Inventors: David Martlew, Malcom J. Rigby