Patents by Inventor Robert A. Holzl

Robert A. Holzl 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).

  • Deposition method and products
    Patent number: 4239819
    Abstract: A method of depositing a hard, fine grained metal or semi-metal alloy is described wherein a volatile halide of the metal or semi-metal is partially reduced and then deposited as a liquid phase intermediate compound onto a substrate in the presence of an alloying gas. The liquid phase deposited on the substrate is then thermochemically reacted to produce the hard, fine grained alloy. Also described are products which may be produced by the above method.
    Type: Grant
    Filed: December 11, 1978
    Date of Patent: December 16, 1980
    Assignee: Chemetal Corporation
    Inventor: Robert A. Holzl
  • Mass spectrometer filter
    Patent number: 4202080
    Abstract: A process for producing mass filters for use in mass spectrometers. Several electrodes having precisely shaped surfaces must be held in precisely determined positions with respect to each other. Insulators are placed into position on the surface of a mandrel and a layer of metal is deposited over the mandrel and insulators to form a composite unitary structure, including the electrodes. The deposited metal overlying the insulators is then removed, electrically isolating the electrodes.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: May 13, 1980
    Assignee: U.T.I.-Spectrotherm Corporation
    Inventors: Robert A. Holzl, Frederick P. Pickett, James L. Lawrence, Jr.
  • Deposition method and products
    Patent number: 4162345
    Abstract: A method for producing a hard deposit on a substrate is described wherein a volatile halide of tungsten or molybdenum is reacted with a gas or gases containing hydrogen, oxygen and carbon to effect the deposition on a substrate of a compound of the metal in a liquid phase. The liquid phase deposited on the substrate is then reacted to remove oxygen and halogen and produce a hard deposit containing the metal and carbon. Also described are products which may be produced by the above method.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: July 24, 1979
    Assignee: Chemetal Corporation
    Inventor: Robert A. Holzl
  • Deposition method and products
    Patent number: 4153483
    Abstract: A method of depositing a hard metal alloy is described wherein a volatile halide of titanium is reduced off the surface of a substrate and then reacted with a volatile halide of boron, carbon or silicon to effect the deposition on a substrate of an intermediate compound of titanium in a liquid phase. The liquid compound on the substrate is then reacted in the presence of hydrogen to produce a hard deposit containing titanium and boron, carbon or silicon. Also described are products which may be produced by the above method.
    Type: Grant
    Filed: April 18, 1977
    Date of Patent: May 8, 1979
    Assignee: Chemetal Corporation
    Inventor: Robert A. Holzl
  • Deposition method and products
    Patent number: 4147820
    Abstract: A method for producing a hard deposit on a substrate is described wherein a volatile halide of tungsten or molybdenum is reacted with carbon monoxide and water vapor to effect the deposition on a substrate of a compound of the metal in a liquid phase. The liquid phase deposited on the substrate is then reacted to remove oxygen and halogen and produce a hard deposit containing the metal and carbon. Also described are products which may be producted by the above method.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: April 3, 1979
    Assignee: Chemetal Corporation
    Inventor: Robert A. Holzl
  • Mandrel for formation of mass spectrometer filter
    Patent number: 4106744
    Abstract: A process for producing mass filters for use in mass spectrometers. Several electrodes having precisely shaped surfaces must be held in precisely determined positions with respect to each other. Insulators are placed into position on the surface of a mandrel and a layer of metal is deposited over the mandrel and insulators to form a composite unitary structure, including the electrodes. The deposited metal overlying the insulators is then removed, electrically isolating the electrodes.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: August 15, 1978
    Assignee: Analog Technology Corporation
    Inventors: James L. Lawrence, Jr., Robert A. Holzl, Frederick P. Pickett
  • Mass spectrometer filter
    Patent number: 4079254
    Abstract: A process for producing mass filters for use in mass spectrometers. Several electrodes having precisely shaped surfaces must be held in precisely determined positions with respect to each other. Insulators are placed into position on the surface of a mandrel and a layer of metal is deposited over the mandrel and insulators to form a composite unitary structure, including the electrodes. The deposited metal overlying the insulators is then removed, electrically isolating the electrodes.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: March 14, 1978
    Assignee: Analog Technology Corporation
    Inventors: James L. Lawrence, Jr., Frederick P. Pickett, Robert A. Holzl
  • Deposition method
    Patent number: 4040870
    Abstract: A method of depositing a hard metal alloy is described wherein a volatile halide of titanium is reduced off the surface of a substrate and then reacted with a volatile halide of boron, carbon or silicon to effect the deposition on a substrate of an intermediate compound of titanium in a liquid phase. The liquid compound on the substrate is then reacted in the presence of hydrogen to produce a hard deposit containing titanium and boron, carbon or silicon. Also described are products which may be produced by the above method.
    Type: Grant
    Filed: June 19, 1975
    Date of Patent: August 9, 1977
    Assignee: Chemetal Corporation
    Inventor: Robert A. Holzl
  • Cutting tool and method for making same
    Patent number: 4008976
    Abstract: A cutting tool and method for making same are described in which a hard metal alloy coating is thermochemically deposited on the body of the tool to form a long wearing, high strength, layer. At least one cutting edge is machined in the layer.
    Type: Grant
    Filed: April 30, 1975
    Date of Patent: February 22, 1977
    Assignee: Chemetal Corporation
    Inventor: Robert A. Holzl