Patents by Inventor Rodney L. D. Young

Rodney L. D. Young 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: 4221579
    Abstract: A glass sheet is thermally treated, for example thermally toughened, by heating the glass sheet, and lowering the sheet into a gas-fluidized bed of particulate material which is at a glass-treatment temperature, for example quenching temperature. Extraction of gas from a localized upper region of the bed is commenced prior to the lowering of the hot glass sheet into the bed in order to produce gradually an unfluidized static packed condition of the material in that upper region of the bed. The glass sheet is lowered into the bed at a time after commencement of gas extraction which is such that the lower edge of the sheet passes through that upper region prior to full attainment of the static packed condition.
    Type: Grant
    Filed: April 19, 1979
    Date of Patent: September 9, 1980
    Assignee: Pilkington Brothers Limited
    Inventors: Donald C. Wright, Brian Marsh, Rodney L. D. Young