Patents by Inventor Barry J. Chase

Barry J. Chase 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).

  • Preparation of metallic article
    Patent number: 4410475
    Abstract: A process for producing a metallic article comprising forming a mixture of metallic particles and plastics particles, injecting the mixture under pressure and at elevated temperature into a die, allowing the die to cool and removing from the die the metallic article.
    Type: Grant
    Filed: August 3, 1981
    Date of Patent: October 18, 1983
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Barry J. Chase, Roy W. E. Rushforth, Gordon L. Selman
  • Method of making an article of bonded metal particles
    Patent number: 4282174
    Abstract: A process for producing metallic articles comprises forming a mixture of metallic particles of platinum group metals, gold or silver, and particles of a thermoplastic material, placing the mixture in a mold and molding the mixture under pressure and at an elevated temperature. The metallic particles comprise at least 92.5% by weight of the article and have a size ranging from 1/2 to 50 microns. The thermoplastic polymeric material has a minimum dimension of 1/2 micron.
    Type: Grant
    Filed: February 12, 1980
    Date of Patent: August 4, 1981
    Inventors: Barry J. Chase, Roy W. E. Rushforth, Gordon J. Selman