Patents by Inventor Robert Grill

Robert Grill 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).

  • Metal plate
    Patent number: 11131035
    Abstract: The invention relates to a metal plate (1) for a coin (2), for a centre pill (3) of a coin (2) or for a ring (4) of a coin (2), where it is suggested that at least one subregion of a surface, on at least one side of the metal plate (1), has a dual-coloured optical element (5) and that said optical element (5) has at least one first region (6) with a first oxide layer (7) of one first colour which is an interference colour, and at least one second region (8) with a second colour, the first colour being different from the second colour.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: September 28, 2021
    Assignee: Münze Österreich AG
    Inventors: Helmut Andexlinger, Paul Fennes, Alfred Gnadenberger, Robert Grill, Herbert Wähner, Heinz Waldhäusl
  • METAL PLATE
    Publication number: 20180195195
    Abstract: The invention relates to a metal plate (1) for a coin (2), for a centre pill (3) of a coin (2) or for a ring (4) of a coin (2), where it is suggested that at least one subregion of a surface, on at least one side of the metal plate (1), has a dual-coloured optical element (5) and that said optical element (5) has at least one first region (6) with a first oxide layer (7) of one first colour which is an interference colour, and at least one second region (8) with a second colour, the first colour being different from the second colour.
    Type: Application
    Filed: March 5, 2018
    Publication date: July 12, 2018
    Applicant: MÜNZE ÖSTERREICH AG
    Inventors: Helmut Andexlinger, Paul Fennes, Alfred Gnadenberger, Robert Grill, Herbert Wähner, Heinz Waldhäusl
  • METAL PLATE
    Publication number: 20160153110
    Abstract: The invention relates to a metal plate (1) for a coin (2), for a centre pill (3) of a coin (2) or for a ring (4) of a coin (2), where it is suggested that at least one subregion of a surface, on at least one side of the metal plate (1), has a dual-coloured optical element (5) and that said optical element (5) has at least one first region (6) with a first oxide layer (7) of one first colour which is an interference colour, and at least one second region (8) with a second colour, the first colour being different from the second colour.
    Type: Application
    Filed: June 25, 2014
    Publication date: June 2, 2016
    Applicant: MÜNZE ÖSTERREICH AG
    Inventors: HELMUT ANDEXLINGER, PAUL FENNES, ALFRED GNADENBERGER, ROBERT GRILL, HERBERT WÄHNER, HEINZ WALDHÄUSL
  • Method and tool of tungsten/heavy metal alloy for hot-forging solid state copper and copper alloys
    Patent number: 6796162
    Abstract: The tungsten/heavy metal alloy is suitable for tools such as extrusion dies and extrusion mandrels for the hot-forming of copper and copper alloys. The novel alloy consists of 80 to 89.9% by weight of tungsten, 2 to 7% by weight of chromium, and a remainder of binder metal. The use of the novel alloy primarily results in a considerably reduced formation of grooves on the surface of the forming tools.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: September 28, 2004
    Assignee: Plansee Aktiengesellschaft
    Inventors: Norbert Dreer, Robert Grill, Joachim Resch
  • Method and tool of tungsten/heavy metal alloy for hot-forging copper and copper alloys
    Publication number: 20020112523
    Abstract: The tungsten/heavy metal alloy is suitable for tools such as extrusion dies and extrusion mandrels for the hot-forming of copper and copper alloys. The novel alloy consists of 80 to 89.9% by weight of tungsten, 2 to 7% by weight of chromium, and a remainder of binder metal. The use of the novel alloy primarily results in a considerably reduced formation of grooves on the surface of the forming tools.
    Type: Application
    Filed: December 19, 2001
    Publication date: August 22, 2002
    Inventors: Norbert Dreer, Robert Grill, Joachim Resch
  • Filtering cartridge
    Patent number: 5868810
    Abstract: A filtering cartridge made of compacted and sintered particles is manufactured from a powder consisting of chromium or a chromium alloy with at least 70% Cr by weight and a particle size of the chromium particles between 160 .mu.m and 500 .mu.m. Filtering cartridges of this type can be used advantageously, particularly in gas clarification for energy production by biomass gasification or coal gasification, in cracking processes in the petroleum industry, as well as for the production of melamine resin.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: February 9, 1999
    Assignee: Schwarzkopf Technologies Corporation
    Inventors: Norbert Dreer, Robert Grill, Silvia Kremshofer
  • Heavily thermally stressable component
    Patent number: 5580670
    Abstract: A heavily thermally stressable component comprising a graphite and a metal part, e.g., copper or a copper alloy, soldered together. Between the solder and the metal part there is an intermediate layer comprising chromium or an alloy containing a substantial proportion of chromium with copper and/or nickel additives. This special intermediate layer provides a good bond between the graphite and the metal which remains stable even under the heaviest cyclic thermal stresses.
    Type: Grant
    Filed: June 12, 1995
    Date of Patent: December 3, 1996
    Assignee: Schwarzkopf Technologies Corporation
    Inventors: Robert Grill, Nikolaus Reheis, Michael Witwer