Patents by Inventor Dag Richter

Dag 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).

  • Patent number: 5067554
    Abstract: The pool to be filamented is liquefied by heating in a crucible. A disk having an edge immersed in the molten pool rotates at high velocity and drives the pool outwards in the form of a ribbon which breaks up into pieces forming the required particles. The portion of the pool in contact with the disk is constantly replenished and, owing to the use of heating means, has sufficient fluidity to satisfy the conditions for extraction, the molten pool being continuously moved horizontally with respect to the disk.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: November 26, 1991
    Assignee: Battelle Development Corporation
    Inventors: Peter Bosswell, Dag Richter, Tatjana Berce, Guy Negaty-Hindi
  • Patent number: 4865876
    Abstract: The metal substrate (4) is coated with a coating (6) of another metal of alloy of 4-50 .mu.m thickness by deposition of a molten metal or alloy (5) through a nozzle (2), the melting temperature of this metal or alloy being lower than that of the substrate metal. This coating comports, starting from the substrate, a layer of intermetallic compound of thickness comprised between 0.5 and 4 .mu.m, within a limit not exceeding 40% of the total thickness, the remainder of the coating being formed of the initial coating metal of alloy in a proportion of 97 to 99.5% by weight.
    Type: Grant
    Filed: September 9, 1987
    Date of Patent: September 12, 1989
    Inventors: Georges Haour, Dag Richter, Peter Boswell, Willy Wagnieres
  • Patent number: 4559187
    Abstract: A free flowing stream of molten metal is motioned to encounter a higher diameter and faster moving free flowing stream of a cooling liquid, such encounter resulting in the splitting of the molten metal into droplets. The droplets in contact with the cooling liquid and entrained therewith are allowed to solidify by cooling; optionally they may undergo further splitting before complete solidification by impingement upon a target arranged to intercept the course of the cooling stream.
    Type: Grant
    Filed: December 14, 1983
    Date of Patent: December 17, 1985
    Assignee: Battelle Development Corporation
    Inventors: Georges Haour, Dag Richter, Willy Wagnieres
  • Patent number: 4412872
    Abstract: A process for manufacturing a component from a mechanically unstable .beta.-titanium alloy which exhibits 3 shape-related memory effects which all differ from one another: a one-way effect, a two-way effect (resembling a bi-metal), this effect being virtually hysteresis-free but occurring continuously over a wide phase-transformation temperature range, and an irreversible effect, which is isothermal. Utilization of the effects in thermal triggering elements (electrical switches) as well as in fixed or detachable connecting elements for components.
    Type: Grant
    Filed: March 19, 1982
    Date of Patent: November 1, 1983
    Assignee: BBC Brown, Boveri & Company Limited
    Inventors: Joachim Albrecht, Thomas Duerig, Dag Richter
  • Patent number: 4404025
    Abstract: Brittle Ni/Ti memory alloys containing copper can be transformed, from the cast condition, into semifinished product which is suitable for further processing, by a process in which a cast bar is homogenized, a little below the solidus line, and is then isothermally extruded in the temperature range from 700.degree. to 850.degree. C.
    Type: Grant
    Filed: February 23, 1982
    Date of Patent: September 13, 1983
    Assignee: BBC Brown, Boveri & Company Limited
    Inventors: Olivier Mercier, Dag Richter, Gunther Schroder