Patents Represented by Attorney J. Riesenfeld

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  • Rapidly solidified powder production system
    Patent number: 4650130
    Abstract: A system is described for the production of rapidly solidified powder. The system contains elements for casting rapidly solidified ribbon, an in-line knife mill or a hammer mill for fracturing the rapidly solidified ribbon into shard, and either an in-line fluid energy mill, or an in-line centrifugal mill for reducing the shard to powder. The system can effectively reduce ribbon to powder in an in-line operation, and produce a powder with a particle size of -35 mesh.
    Type: Grant
    Filed: January 4, 1982
    Date of Patent: March 17, 1987
    Assignee: Allied Corporation
    Inventors: Robert E. Hathaway, Edward M. Norin
  • Platelet metal powder for coating a substrate
    Patent number: 4513020
    Abstract: The present invention is for a flat platelet powder for deposition onto a substrate. The powder is formed by fracture of brittle sheet or ribbon. The resulting powder has a faceted outline formed by fracture. The powder of the present invention produces a dense deposit.
    Type: Grant
    Filed: April 8, 1983
    Date of Patent: April 23, 1985
    Assignee: Allied Corporation
    Inventors: James Dickson, Charles Hays