Patents by Inventor Dag F. Richter

Dag F. Richter 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).

  • Method of manufacturing metal powders
    Patent number: 4915729
    Abstract: A molten metal is placed in contact with a bed of moving beads. The molten metal breaks up into fine particles which are rapidly cooled in contact with the beads and consequently acquire a structure which is typical for such rapid cooling.
    Type: Grant
    Filed: April 4, 1988
    Date of Patent: April 10, 1990
    Assignee: Battelle Memorial Institute
    Inventors: Peter Boswell, Dag F. Richter, Georges Haour
  • Method for selectively forming at least one coating strip consisting of a metal or alloy on a substrate consisting of another metal
    Patent number: 4719962
    Abstract: The metal substrate (4) is covered with a coating (6) consisting of another metal or alloy having a thickness of 4 to 50 .mu.m, by deposition of molten metal or alloy (5) through a nozzle (2), this melting point [sic] being lower than that of the substrate metal. This coating comprises, at the interface with the substrate, a layer of intermetallic compound with a thickness of between 0.5 and 4 .mu.m not exceeding 40% of the total thickness, the remainder consisting of the initial metal or alloy used for the coating, in a proportion of between 97% and 99.5% by weight.
    Type: Grant
    Filed: November 3, 1986
    Date of Patent: January 19, 1988
    Assignee: Battelle Memorial Institute
    Inventors: Georges Haour, Dag F. Richter, Peter Boswell, Willy Wagnieres