Patents by Inventor Christopher Pargeter

Christopher Pargeter 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).

  • Non-staining solid lubricants
    Patent number: 5783530
    Abstract: As a lubricant for cold-working of metal there is provided on the surface of the metal to be subjected to working a solid film of a saturated aliphatic monohydric alcohol having 14 to 18 carbon atoms. After the metal has been worked, the solid lubricant may be removed by heating without causing staining of the metal surface. The solid lubricant film may additionally contain from 1 to 10% by weight of a polybutene, petroleum jelly or butyl stearate to modify the properties of the lubricant film.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: July 21, 1998
    Assignee: Alcan International Limited
    Inventors: Mark Howard Foster, Christopher Pargeter
  • Shaping anodic aluminum oxide sheet
    Patent number: 4873047
    Abstract: Porous anodic aluminum oxide sheet, when removed from its aluminum metal substrate, is a useful filter but rather brittle. It can be formed into a desired shape by flexing in a direction transverse to the direction in which the metal substrate was rolled. Or the sheet can be wetted to make it more flexible and then formed by flexing in any direction. The formed sheet can be heat-set in a desired shape by heating at 200.degree. C. to 650.degree. C.
    Type: Grant
    Filed: November 9, 1987
    Date of Patent: October 10, 1989
    Assignee: Alcan International Limited
    Inventors: Dianne M. Jenkins, Christopher Pargeter