Patents Represented by Attorney James Theodosopoulos

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  • Method of manufacturing quartz glass crucibles with low bubble content
    Patent number: 4632686
    Abstract: In the manufacture of a quartz glass crucible of low bubble content, a first layer of granular quartz material is disposed on the interior of a rotating mold through the walls of which a vacuum can be drawn. A second layer of finer quartz material is then disposed on the first layer. The quartz material is then heated, melted and fused to form a crucible.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: December 30, 1986
    Assignee: GTE Products Corporation
    Inventors: David R. Brown, Charles E. Frost, Jr., Kenneth A. White
  • Heat recuperator with compensator for pressure operated fuel regulator
    Patent number: 4631022
    Abstract: A temperature compensator for a pressure operated fuel regulator is used in combination with a heat recuperator to regulate fuel flow. In the recuperator, air to be used for combustion of the fuel is heated. Some of the heated air is supplied to the compensator, which comprises a housing having an opening for bleeding air therethrough. The rate of bleeding through of the air, and consequently the pressure drop across the compensator, is dependent on the temperature of the air supplied to the compensator.
    Type: Grant
    Filed: December 15, 1983
    Date of Patent: December 23, 1986
    Assignee: GTE Products Corporation
    Inventors: John L. Ferri, William C. Fulkerson, Ray L. Newman, Jeffrey M. Gonzalez
  • Method of brazing using a ductile low temperature brazing alloy
    Patent number: 4630767
    Abstract: Titanium-silver alloys containing specified amounts of silver and titanium and controlled amounts of copper, aluminum and mixtures thereof are suitable for brazing ceramics, other non-metallic and metallic materials. These alloys also may contain controlled amounts of tin, palladium, indium and mixtures thereof.
    Type: Grant
    Filed: August 15, 1985
    Date of Patent: December 23, 1986
    Assignee: GTE Products Corporation
    Inventor: Howard Mizuhara
  • Voltage surge suppressor
    Patent number: 4628394
    Abstract: A transient voltage surge suppressor for an AC powerline comprises two semiconductor voltage limiting devices before a low pass LC filter and a third semiconductor voltage limiting device after the filter. The suppressor can be plugged into a 120 volt receptacle for protection of sensitive electronic equipment.
    Type: Grant
    Filed: September 27, 1984
    Date of Patent: December 9, 1986
    Assignee: GTE Products Corporation
    Inventors: John J. Crosby, John J. Napiorkowski
  • Electrical contact and process for making the same
    Patent number: 4622269
    Abstract: An electrical contact formed of a mixture of finely divided electrically conductive metal doped with graphite or cadmium oxide. A thin coating of the electrically conductive metal is disposed upon the side of the contact which is adapted to be welded or brazed to an electrically conductive support. The electrical contact is made by mixing the finely divided cadmium oxide and pressing the mixture into a desired shape. A slurry of conductive metal is then sprayed on one side of the contact. After coating, the contact is sintered at a temperature less than the melting point of the electrically conductive material, whereby the contact is formed and the coating is firmly attached to it. The invention is particularly useful with silver or copper-based electrical contacts.
    Type: Grant
    Filed: December 30, 1985
    Date of Patent: November 11, 1986
    Assignee: GTE Products Corporation
    Inventors: Chi H. Leung, Ron J. DeNuccio
  • Compensatory procedure for preparing haloapatite phosphors
    Patent number: 4613453
    Abstract: In the manufacture of an alkaline earth haloapatite phosphor, raw materials including calcium carbonate are blended together and then fired. However, before blending, the particle size of the calcium carbonate is first determined, and the quantities of some of the other raw materials are adjusted in a manner dependent on said particle size.
    Type: Grant
    Filed: September 6, 1985
    Date of Patent: September 23, 1986
    Assignee: GTE Products Corporation
    Inventor: Charles F. Chenot
  • Ductile composite interlayer for joining by brazing
    Patent number: 4598025
    Abstract: A ceramic part is joined to a metal part by means of a molybdenum copper composite interlayer disposed between, and brazed to, the ceramic part and the metal part.
    Type: Grant
    Filed: July 19, 1985
    Date of Patent: July 1, 1986
    Assignee: GTE Products Corporation
    Inventor: Howard Mizuhara
  • Diesel fuel heater with fuel reservoir means
    Patent number: 4596224
    Abstract: An improved diesel fuel heater wherein a predetermined quantity of fuel is captured within the heater in a reservoir defined therein. This quantity is heated by the heater's positive temperature coefficient (PTC) thermistors (and heat conductive mounting plate) to assure a heated quantity of fuel will be pumped into the fuel system's filter element to enhance de-waxing thereof.
    Type: Grant
    Filed: April 29, 1983
    Date of Patent: June 24, 1986
    Assignee: GTE Products Corporation
    Inventor: Lee A. Prager
  • Method of winding braze strip material
    Patent number: 4589601
    Abstract: A spool for L-shaped brazing alloy strip comprises a flange with a hub acutely angularly disposed thereto. The strip is wound on the spool so that the turns nest into each other.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: May 20, 1986
    Assignee: GTE Products Corporation
    Inventor: Albert R. Scherer
  • Telephone network interface connector
    Patent number: 4588238
    Abstract: A telephone interface connector comprises a plug inserted into a jack and protected against the environment by a resilient sealing member. Encapsulants seal the wires at the points at which the wires exit the plug and the jack.
    Type: Grant
    Filed: December 19, 1984
    Date of Patent: May 13, 1986
    Assignee: GTE Products Corporation
    Inventors: N. Peter Mickelson, John J. Napiorkowski
  • Transient voltage surge suppressor
    Patent number: 4584622
    Abstract: A transient voltage surge suppressor for an AC powerline comprises two semiconductor voltage limiting devices before a low pass LC filter and a third semiconductor voltage limiting device after the filter. The suppressor can be plugged into a 120 volt receptacle for protection of sensitive electronic equipment.
    Type: Grant
    Filed: July 9, 1984
    Date of Patent: April 22, 1986
    Assignee: GTE Products Corporation
    Inventors: John J. Crosby, John J. Napiorkowski
  • Method of processing PTC heater
    Patent number: 4570046
    Abstract: A PTC heater has passages therethrough through which a fluid can flow to be heated. The passages are separated from each other by thin walls of PTC material. Electrical current flow is in a direction normal to the thin walls. A short duration pulse of high electric current is applied to the heater in order to eliminate any electrical shorts between passages.
    Type: Grant
    Filed: September 9, 1983
    Date of Patent: February 11, 1986
    Assignee: GTE Products Corporation
    Inventors: Lionel J. Melanson, Frank Bucherati
  • Support for lead frame for IC chip carrier
    Patent number: 4554404
    Abstract: A support for a lead frame for use with an integrated circuit chip is made of electrically insulative material, preferably a thermoplastic. There is a pad area at the center of the support in which an IC chip can be disposed. Proximate the periphery of the pad are raised spaced-apart projections. The spaces between the projections define slots in which the leads of a lead frame can be disposed.
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: November 19, 1985
    Assignee: Gte Products Corporation
    Inventors: Thomas G. Gilder, Jr., Raymond D. O'Dean
  • Bar evaporation source having improved wettability
    Patent number: 4526840
    Abstract: As intermetallic composite, bar evaporation source constructed from a mixture of borides and nitrides for use in the evaporation of metals, e.g., aluminum, is arc sprayed with a layer of the metal to be subsequently evaporated therefrom before use. The coated layer of the metal to be evaporated increases the wettability of the bar source cavity and creates greater electrical stability when compared with similar but uncoated bars.
    Type: Grant
    Filed: February 11, 1983
    Date of Patent: July 2, 1985
    Assignee: GTE Products Corporation
    Inventor: Charles F. Jerabek
  • Miniaturized circuit breaker
    Patent number: 4521760
    Abstract: A circuit breaker comprises a two piece metal enclosure, a cover and a base. Disposed within the enclosure is a PMB bimetal which is fastened to a step in the cover. The opening time of the circuit breaker can be adjusted by means of the step.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: June 4, 1985
    Assignee: GTE Products Corporation
    Inventors: Douglas C. Carbone, Philip J. Dennis
  • Terbium-activated gadolinium oxysulfide X-ray phosphor
    Patent number: 4507560
    Abstract: An improved (Gd.sub.1-x Tb.sub.x).sub.2 O.sub.2 S X-ray phosphor, wherein x is from 0.0003 to 0.0045, and persistence causing impurity ions are kept below 5 ppm, exhibits increased brightness in the blue region of the spectrum, while exhibiting acceptably low persistence for X-ray intensifying screen applications.
    Type: Grant
    Filed: June 13, 1980
    Date of Patent: March 26, 1985
    Assignee: GTE Products Corporation
    Inventors: James E. Mathers, Ramon L. Yale
  • Method of making ceramic core heat recuperator
    Patent number: 4503905
    Abstract: In the manufacture of a heat recuperator, a ribbed layered cross-flow ceramic core is inserted into a metal housing. The core has divider ribs in the air-flow layers to provide triple pass air flow through the core. There are triple pass gaskets on the air-in and air-out faces of the core, between said faces and cast ceramic landed surfaces of the housing.
    Type: Grant
    Filed: December 15, 1983
    Date of Patent: March 12, 1985
    Assignee: GTE Products Corporation
    Inventors: Ray L. Newman, David H. Hopkins
  • Heat recuperator with triple pass cross-flow ceramic core
    Patent number: 4503904
    Abstract: A heat recuperator comprises a triple pass cross flow ceramic core within a six sided metal housing. The four sides of the housing through which air or gas flows have cast ceramic material thereat with landed surfaces thereon which are in gasket-sealing engagement with a respective face of the core. Disposed between the closed sides of the housing and the solid faces of the core are spring means for exerting compressive force to the solid faces.
    Type: Grant
    Filed: December 1, 1983
    Date of Patent: March 12, 1985
    Assignee: GTE Products Corporation
    Inventors: Ray L. Newman, David H. Hopkins
  • Electrophotographic copper doped cadmium sulfide material and method of making
    Patent number: 4495265
    Abstract: A CdS:Cu,Cl electrophotographic material suitable for use in the xerographic mode, contains 200 to 300 ppm Cu, 0.02 to 0.06 percent Cl, and has very good contrast voltage.
    Type: Grant
    Filed: February 12, 1981
    Date of Patent: January 22, 1985
    Assignee: GTE Products Corporation
    Inventor: Sixdeniel Faria
  • Si.sub.3 N.sub.4 ceramic articles having lower density outer layer, and method
    Patent number: 4492765
    Abstract: Monolithic Si.sub.3 N.sub.4 ceramic bodies having a lower density outer layer are produced by a one-step sintering in an ambient atmosphere of water vapor and a nonreactive diluent gas, and are useful, for example, as abradable seal and impact resistant structural elements.
    Type: Grant
    Filed: August 15, 1980
    Date of Patent: January 8, 1985
    Assignee: GTE Products Corporation
    Inventor: Sergej-Tomislav Buljan