Patents Represented by Attorney Robert E. Walter

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  • Probe having a plurality of hinged plates
    Patent number: 4734994
    Abstract: A stack of hinged plates are employed as part of a switch assembly for a probe used to detect contact with an object such as a workpiece. In the preferred embodiment, the plates are hinged together by flat springs clamped to, but electrically insulated from, side walls of adjacent plates.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: April 5, 1988
    Assignee: GTE Valeron Corporation
    Inventor: Robert F. Cusack
  • Scalloped polygonal cutting insert
    Patent number: 4705434
    Abstract: In polygonal cutting insert, each of the respective parallel faces of the insert include a single chip breaker scallop positioned at each corner wherein the scallop is formed as segments of conical frustum having a particular orientation.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: November 10, 1987
    Assignee: GTE Valenite
    Inventors: John H. Patterson, Thomas J. Bernadic
  • Method for making ultrafine metal powder
    Patent number: 4687510
    Abstract: A fine aluminum metallurgical powder suitable for compacting and sintering into densified articles which includes a dispersed phase is produced by directing a stream of molten droplets at a repellent surface to produce smooth surfaced and melt solidified particles having an average particle size of less than about ten micrometers.
    Type: Grant
    Filed: February 10, 1986
    Date of Patent: August 18, 1987
    Assignee: GTE Products Corporation
    Inventors: Richard F. Cheney, Richard H. Pierce
  • Printer wire
    Patent number: 4671685
    Abstract: A print wire for a printer wire assembly consisting essentially of a very fine and uniform grain size tungsten carbide in a cobalt matrix results in a wire having improved strength.
    Type: Grant
    Filed: February 10, 1986
    Date of Patent: June 9, 1987
    Assignee: GTE Products Corporation
    Inventor: Frank Rymas
  • Method of producing monotungsten carbide powder
    Patent number: 4664899
    Abstract: Tungsten carbide is produced by mixing tungsten oxide or ammonium paratungstate with carbon to form a mixture which is substantially reduced in a non-reducing atmosphere in the presence of sufficient carbon to produce a carbon content in the resulting mixture of less than seven percent by weight, and adding sufficient carbon to the resulting reduced mixture to increase the carbon content to at least the stoichiometric amount needed to form monotungsten carbide prior to carburization of the mixture to monotungsten carbide.
    Type: Grant
    Filed: June 15, 1983
    Date of Patent: May 12, 1987
    Assignee: GTE Products Corporation
    Inventors: Edward R. Kimmel, Mary E. Shaffer, Thomas R. Pinkowski, Geoffrey L. Harris
  • Method of making diamond tool
    Patent number: 4661180
    Abstract: A polycrystalline diamond disk is bonded to a substrate by forming layers of powdered diamond material and then pressing and sintering the layers to bond the diamond material and to form disks thereof. A surface of one such disk is ground or lapped flat and then placed on a substrate with a disk of a brazing alloy therebetween. The diamond disk is then brazed to the substrate at a brazing temperature of about 730.degree. to 740.degree. C.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: April 28, 1987
    Assignee: GTE Valeron Corporation
    Inventor: Robert H. Frushour
  • High toughness silicon nitride cutting tools
    Patent number: 4652276
    Abstract: A silicon nitride cutting tool primarily for cutting cast iron comprises a granular phase consisting essentially of silicon nitride and an intergranular amorphous phase consisting essentially of magnesium oxide, yttrium oxide and silicon oxide wherein the components are present in specified amounts and ratios.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: March 24, 1987
    Assignee: GTE Valeron Corporation
    Inventor: Stephen J. Burden
  • Printer wire
    Patent number: 4650353
    Abstract: A printer wire for a printer wire assembly consists essentially of a metal carbide dispersed throughout a metal matrix wherein said metal carbide comprises titanium carbide and the matrix comprises nickel.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: March 17, 1987
    Assignee: GTE Products Corporation
    Inventor: Frank Rymas
  • Coated silicon nitride cutting tool and process for making
    Patent number: 4640693
    Abstract: A coated ceramic silicon nitride cutting tool comprises a substrate having a major portion by volume silicon nitride, a coating of refractory material thereon, and an interfacial layer intermediate between the substrate and the layer of refractory material. The interfacial layer comprises a refractory metal chemically reacted to form a reaction bonded refractory metal nitride for enhancing the adherence of the layer of refractory metal material to the substrate. The interfacial layer is provided by reacting a refractory metal halide with the surface to form a reaction bonded refractory metal nitride.
    Type: Grant
    Filed: April 15, 1985
    Date of Patent: February 3, 1987
    Assignee: GTE Valeron
    Inventors: Deepak G. Bhat, Dhirajlal C. Shah, John R. Kyle, Paul F. Woerner
  • Bore head for deep-hole boring
    Patent number: 4640373
    Abstract: The present invention deals with a bore head for deep-hole boring, in which a plurality of circumferentially spaced cutting members may be radially displaced in the bore hole by a common actuating device during operation. The actuating device includes an actuating rod for each cutting member, which actuating rod is in engagement with its associated cutting member by gear means including inclined teeth. The actuating rods are secured to a central actuating bar by a common connecting member. The bore head is interchangeably secured to a boring tube, and the actuating rod may be separated from the connecting member by a coupling which is automatically engaged and disengaged during changing of the bore head.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: February 3, 1987
    Assignee: GTE Products Corporation
    Inventor: Wilfried Horsch
  • Interchangeable tool head for a nc machine
    Patent number: 4617846
    Abstract: A tool for a nc machine is provided with a radially displaceable surface slide serving as a tool holder. The tool head is interchangeable by a tool head changing device mounted on the nc machine. The tool head is automatically releasably mounted on the work spindle by means of a clamping cone and a tie rod concentrically disposed within the work spindle and engaging the conical surface of the clamping cone. There is provided a pair of control rods for radially displacing the surface slide and for limiting the radial movement of the surface slide, which control rods are adapted to be automatically separated by releasable clutches for interchanging the tool head (FIG. 1).
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: October 21, 1986
    Assignee: GTE Valeron Corporation
    Inventor: Wilfried Horsch
  • Method for making ultrafine metal powder
    Patent number: 4613371
    Abstract: A fine amorphous metallurgical powder suitable for compacting and sintering into amorphous densified articles which consist essentially of a major portion by weight a transition metal or combination thereof and less than a minor amount of an additional component for enhancing the amorphous characteristics of densified articles produced by directing a stream of molten droplets at a repellent surface to produce the smooth surfaced and melt solidified particles having an average particle size of less than about ten micrometers.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: September 23, 1986
    Assignee: GTE Products Corporation
    Inventors: Richard F. Cheney, Richard H. Pierce
  • Process for purifying molybdenum trioxide
    Patent number: 4604266
    Abstract: Processes are described for preparing pure ammonium molybdate from impure roasted molybdenum concentrates. An aqueous solution of nitric acid and ammonium nitrate is contacted with impure molybdenum concentrate to solubilize a major portion of the impurities. The resulting molybdenum concentrate is digested in ammonium hydroxide under conditions that maximize iron precipitation and removal. The resulting ammonium molybdate solution is separated from the sludge and further purified by chelating cation exchange resin in the ammonium form.
    Type: Grant
    Filed: March 27, 1985
    Date of Patent: August 5, 1986
    Assignee: GTE Products Corporation
    Inventors: Michael J. Cheresnowsky, Timothy A. Brunelli, Robin W. Munn, Tai K. Kim
  • Process for purifying molybdenum trioxide
    Patent number: 4604267
    Abstract: Processes are described for preparing pure ammonium molybdate from impure roasted molybdenum concentrates. An aqueous solution of nitric acid, ammonium sulfate, and ammonium nitrate is contacted with impure molybdenum concentrate to solubilize a major portion of the impurities. The resulting molybdenum concentrate is digested in ammonium hydroxide under conditions that maximize iron precipitation and removal. The resulting ammonium molybdate solution is separated from the sludge and further purified by chelating cation exchange resin in the ammonium form.
    Type: Grant
    Filed: March 27, 1985
    Date of Patent: August 5, 1986
    Assignee: GTE Products Corporation
    Inventor: Michael J. Cheresnowsky
  • Optical fiber connector
    Patent number: 4602845
    Abstract: A connector which forms an optical fiber to a fiber receiving member along a straight axis includes a slidable member having a camming means for holding the fiber when the fiber is moved toward the receiving member to complete an optical connection.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: July 29, 1986
    Assignee: GTE Products Corporation
    Inventor: John J. Anderton
  • Controllable nitrate fusion
    Patent number: 4603043
    Abstract: A process for converting tungsten bearing material to sodium tungstate by adding an oxidizing reactant in small increments to a heated mixture of fused sodium hydroxide and the tungsten bearing material while the temperature is maintained at from about 500.degree. C. to about 700.degree. C.
    Type: Grant
    Filed: March 1, 1985
    Date of Patent: July 29, 1986
    Assignee: GTE Products Corporation
    Inventors: Alan D. Douglas, Kenneth T. Reilly, John E. Landmesser
  • Process for purifying molybdenum trioxide
    Patent number: 4601890
    Abstract: Processes are described for preparing pure ammonium molybdate from impure roasted molybdenum concentrates. An aqueous solution of hydrochloric acid and ammonium nitrate is contacted with impure molybdenum concentrate to solubilize a major portion of the impurities. The resulting molybdenum concentrate is digested in ammonium hydroxide under conditions that maximize iron precipitation and removal. The resulting ammonium molybdate solution is separated from the sludge and further purified by chelating cation exchange resin in the ammonium form.
    Type: Grant
    Filed: March 27, 1985
    Date of Patent: July 22, 1986
    Assignee: GTE Products Corporation
    Inventor: Michael J. Cheresnowsky
  • Process for purifying molybdenum trioxide
    Patent number: 4596701
    Abstract: Processes are described for preparing pure ammonium molybdate from impure roasted molybdenum concentrates. An aqueous solution of sulfuric acid, ammonium sulfate, and ammonium persulfate is contacted with impure molybdenum concentrate to solubilize a major portion of the impurities. The resulting molybdenum concentrate is digested in ammonium hydroxide under conditions that maximize iron precipitation and removal. The resulting ammonium molybdate solution is separated from the sludge and further purified by chelating cation exchange resin in the ammonium form.
    Type: Grant
    Filed: March 27, 1985
    Date of Patent: June 24, 1986
    Assignee: GTE Products Corporation
    Inventors: Michael J. Cheresnowsky, Brice E. Martin
  • Method for making ultrafine metal powder
    Patent number: 4592781
    Abstract: A fine aluminum metallurgical powder suitable for compacting and sintering into densified articles which includes a dispersed phase is produced by directing a stream of molten droplets at a repellent surface to produce smooth surfaced and melt solidified particles having an average particle size of less than about ten micrometers.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: June 3, 1986
    Assignee: GTE Products Corporation
    Inventors: Richard F. Cheney, Richard H. Pierce
  • Recovery of rhenium
    Patent number: 4557906
    Abstract: In a process for recovering rhenium, a starting material containing tungsten and rhenium is reacted with sodium hydroxide and an oxidizing reactant to form a fused solid. The fused solid is dissolved in water to solubilize the tungsten and rhenium values and then pass through an anion exchange resin to remove the rhenium values and form a solution containing the tungsten values. The resin is stripped to obtain the rhenium values from the resin.
    Type: Grant
    Filed: November 7, 1984
    Date of Patent: December 10, 1985
    Assignee: GTE Products Corporation
    Inventors: Alan D. Douglas, Kenneth T. Reilly, John E. Landmesser