Patents by Inventor Arthur M. Crestfield

Arthur M. Crestfield 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).

  • Radiation shielding and thermally conductive gasket with internal bonding agent
    Patent number: 4575578
    Abstract: A method of making a shielding gasket integral with a surface comprising the steps of (a) preparing a gasket material consisting of a mixture of an elastomer, a conductive filler, a catalyst and a bonding agent; (b) filling a mold with the gasket material; (c) covering the mold with a surface chosen to be bonded to the gasket; and (d) curing the gasket material in contact with the surface to utilize the bonding agent to bond the gasket material to the chosen surface. The article fabricated by this method comprises a gasket (18b), consisting of a mixture of an elastomer (26), a conductive filler (30) and a bonding agent (28), bonded to a surface (38) by the bonding agent during curing and having the particles comprising the conductive filler held in physical contact with the surface and with one another by the elastomer to which the particles are bonded.
    Type: Grant
    Filed: January 5, 1983
    Date of Patent: March 11, 1986
    Assignee: Keene Corporation
    Inventors: John J. Bogan, Robert E. Meeks, Arthur M. Crestfield