Patents Represented by Attorney Joseph T. Cohen

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  • Method of heat treating .gamma./.gamma.'-.alpha. eutectic nickel-base superalloy body
    Patent number: 4161412
    Abstract: A method of improving the mechanical properties of a .gamma./.gamma.'-.alpha. eutectic nickel-base superalloy body containing a .gamma.-phase, a .gamma.'-phase, and an aligned molybdenum fiber .alpha.-phase which comprises the steps (a) heating the body to a temperature at which at least a portion of the .gamma.'-phase will transform to a .gamma.-phase, (b) maintaining the heated body at said temperature to allow transformation of at least a portion of said .gamma.'-phase to a .gamma.-phase, and (c) cooling the transformed body to a temperature at which at least a portion of the .gamma.-phase precipitates as a modified .gamma.'-phase.
    Type: Grant
    Filed: November 25, 1977
    Date of Patent: July 17, 1979
    Assignee: General Electric Company
    Inventor: Michael F. Henry
  • Blends of low molecular weight polyalkylene terephthalate resins and organopolysiloxane-polycarbonate block copolymers
    Patent number: 4161498
    Abstract: A blend comprising a low molecular weight polyalkylene terephthalate resin and an organopolysiloxane-polycarbonate block copolymer having improved impact and heat distortion properties. The polymer blends can be molded or formed into films, sheets, fibers, laminates, or other improved molded articles of manufacture including reinforced articles by conventional techniques.
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: July 17, 1979
    Assignee: General Electric Company
    Inventor: Richard C. Bopp
  • Reduction of diimino compounds to diamino compounds
    Patent number: 4160785
    Abstract: Organic diamines can be prepared by hydrogenating a preformed diimine in the presence of methanol and in the further presence of the tertiary alkyl mono-amine used to make the diimino compound. The diamino compounds thus obtained are useful as catalysts in the preparation of polyphenylene oxide resins.
    Type: Grant
    Filed: July 1, 1976
    Date of Patent: July 10, 1979
    Assignee: General Electric Company
    Inventors: Jimmy L. Webb, John E. Corn
  • Silicon-iron production and composition and process therefor
    Patent number: 4160705
    Abstract: A boron-containing magnesium hydroxide coating is electrolytically applied to a boron-containing electrical steel through the use of an electrolyte at 90.degree. C. which is an aqueous solution of magnesium formate and magnesium metaborate containing magnesia as a solid second phase and having a pH in the range from 8.0 to 9.0.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: July 10, 1979
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Matthew J. Curran
  • Coated silicon-iron product and process therefor using magnesium formate and metaborate
    Patent number: 4160706
    Abstract: A boron-containing electrical steel sheet is provided with an electrolytically-deposited boron-containing Mg(OH).sub.2 primary coating about 0.05 mil thick and a secondary coating of electrolytically-deposited Mg(OH).sub.2 about 0.15 mil thick. Magnesium formate is employed as the water-soluble magnesium salt in preparing the electrolytes.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: July 10, 1979
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Matthew J. Curran
  • Migration of fine liquid wires by thermal gradient zone melting through doped surfaces
    Patent number: 4160679
    Abstract: Uniform initiation and migration of fine liquid wires by thermal gradient zone melting processing through a solid body of semiconductor material is enhanced by a heavily doped region of the body which includes the surface of initiation of the migration.
    Type: Grant
    Filed: September 13, 1978
    Date of Patent: July 10, 1979
    Assignee: General Electric Company
    Inventors: Douglas E. Houston, Harvey E. Cline, Thomas R. Anthony
  • Coated silicon-iron product and process therefor using calcium formate
    Patent number: 4160708
    Abstract: A relatively thin coat of calcium metaborate is electrolytically-applied from a solution of calcium formate with boric acid directly to the surface of a boron-containing electrical steel and a substantially thicker overcoat of Mg(OH).sub.2 is electrolytically-deposited on the calcium metaborate coating to provide a duplex coating about 0.2 mil thick.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: July 10, 1979
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Matthew J. Curran
  • Dihydrooxadiazinones and method for making
    Patent number: 4160088
    Abstract: Dihydrooxadiazinones are provided which can be used as blowing agents in various thermoplastic polymeric materials to produce high performance thermoplastic foams. A ketone having at least one .alpha.-hydrogen atom is halogenated and hydroxylated to produce an .alpha.-hydroxyketone. Condensation of the .alpha.-hydroxyketone with an organocarbazate produces the corresponding carboorganooxyhydrazone which is cyclized to a dihydrooxadiazinone.
    Type: Grant
    Filed: April 21, 1977
    Date of Patent: July 3, 1979
    Assignee: General Electric Company
    Inventor: George E. Niznik
  • Thermal migration of fine lined cross-hatched patterns
    Patent number: 4159916
    Abstract: Mutually perpendicular, intersecting, straight, fine molten wires, (.ltoreq.0.002" in width) can be migrated through a solid matrix body of semiconductor material of (100) planar orientation by migration along a unidirectional thermal gradient which is established and maintained at from 2.degree. to 10.degree. off the normally preferred <100> crystal axis of migration by the thermal gradient zone melting process. All the fine molten metal wires are substantially initiated simultaneously and uniformly along the entire length of each intersecting wire when the lines are arranged in a cross-hatched pattern.
    Type: Grant
    Filed: September 13, 1978
    Date of Patent: July 3, 1979
    Assignee: General Electric Company
    Inventor: Douglas E. Houston
  • Method for stabilizing bisphenols under melt or distillation conditions
    Patent number: 4160110
    Abstract: A process is provided for improving the stability of bisphenols under melt or distillation conditions by employing an aromatic anhydride such as phthalic anhydride as a stabilizing agent. A reduction is effected in the rate of formation of phenol and other cracking products which are decomposition by-products of the bisphenol.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: July 3, 1979
    Assignee: General Electric Company
    Inventor: James C. Carnahan, Jr.
  • Enhanced line stability by alloying of deposition
    Patent number: 4159216
    Abstract: A saturated or a supersaturated solution of the material of a solid body of semiconductor material in a layer of metal to be migrated by thermal gradient zone melting processing is utilized to achieve uniform penetration of fine lines (1 mil in width and less) and small droplets (less than 6 mils in diameter) in order to produce reliable semiconductor devices.
    Type: Grant
    Filed: September 21, 1978
    Date of Patent: June 26, 1979
    Assignee: General Electric Company
    Inventors: Thomas R. Anthony, Harvey E. Cline
  • Axial gap inductor alternator
    Patent number: 4159434
    Abstract: A high speed inductor alternator employs axial air gaps, enabling a nonmagnetic filler in the portion of the gap extending into the solid rotor to be securely bonded to the rotor against the action of centrifugal force. This configuration permits use of axial poles on the rotor, and results in a machine that is substantially shorter, axially, than a conventional radial air gap inductor alternator of comparable output ratings.
    Type: Grant
    Filed: October 21, 1977
    Date of Patent: June 26, 1979
    Assignee: General Electric Company
    Inventor: Swarn S. Kalsi
  • Droplet migration doping using reactive carriers and dopants
    Patent number: 4159215
    Abstract: Aluminum is employed as a carrier metal for antimony in order to N-type dope semiconductor material by temperature gradient zone melting (TGZM) processing.
    Type: Grant
    Filed: September 21, 1978
    Date of Patent: June 26, 1979
    Assignee: General Electric Company
    Inventors: Mike F. Chang, Harvey E. Cline, Thomas R. Anthony
  • Acoustic diagnostic system for contacts in power distribution systems
    Patent number: 4159446
    Abstract: An acoustic diagnostic system for detecting misalignment of switch blade contacts in power distribution systems is disclosed. In accordance with one embodiment of the present invention, the high frequency component of the acoustic signal generated by the make and break of electrical contacts in high energy power distribution equipment is filtered and demodulated to produce a waveform from which significant timing information is provided. A method for producing these waveforms is also disclosed.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: June 26, 1979
    Assignee: General Electric Company
    Inventors: Bernard Darrel, Richard Blackburn
  • Trapezoidal scintillator for radiation detectors
    Patent number: 4159424
    Abstract: Radiation detectors, receiving poly-energetic radiation quanta, utilize scintillator elements having a trapezoidal cross-section to reduce the variation in response to the quanta of different energies when the scintillator front surface is not aligned perfectly perpendicular to the radiation quanta path of travel.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: June 26, 1979
    Assignee: General Electric Company
    Inventor: Jack D. Kingsley
  • Ultrasonic multi-sector scanner
    Patent number: 4159462
    Abstract: A steered beam B-scan ultrasonic imaging system has a linear transducer array divisible into multiple sub-arrays of transducer elements each operable to perform a sector scan, with the origin points displaced longitudinally along the array between sector scans. The system performs overlapping sector scans and is capable of imaging randomly oriented specularly reflecting targets. Time delays in the transmitting and receiving channels to steer the transmitted beam and to focus the received echoes are provided by digital techniques, by reversible digital shift registers, or by charge coupled device delay lines. The multiple sector image is displayed in real time in an intensity versus displacement format on a cathode ray tube.
    Type: Grant
    Filed: August 18, 1977
    Date of Patent: June 26, 1979
    Assignee: General Electric Company
    Inventors: Henry A. F. Rocha, Charles E. Thomas
  • Electric circuit breaker with high current interruption capability
    Patent number: 4159498
    Abstract: Current interruption capability for short-line or terminal faults is achieved by connecting a fluid blast interrupter in series with a high current vacuum interrupter capable of withstanding the initial recovery voltage during such fault. The fluid blast breaker ultimately becomes able to carry the total recovery voltage by delaying opening of the vacuum interrupter for a fixed interval after opening of the fluid blast breaker has been triggered.
    Type: Grant
    Filed: November 17, 1977
    Date of Patent: June 26, 1979
    Assignee: General Electric Company
    Inventor: Heinz O. Noeske
  • Straight, uniform thermalmigration of fine lines
    Patent number: 4159213
    Abstract: Straight, fine molten wires (<0.002") of a metal can be migrated through a solid, or matrix, body of semiconductor material by initiation of the migration of the melt and continuing the migration along a thermal gradient established and maintained at from 2.degree. to 10.degree. off the normally preferred crystal axis of migration by the thermal gradient zone melting processing.
    Type: Grant
    Filed: September 13, 1978
    Date of Patent: June 26, 1979
    Assignee: General Electric Company
    Inventors: Douglas E. Houston, Thomas R. Anthony, Harvey E. Cline
  • MOSFET Reference voltage circuit
    Patent number: 4158804
    Abstract: A stable temperature-insensitive constant reference voltage circuit is provided which can be implemented in either MOS or bipolar technology. The circuit may be implemented by MOSFET devices on a single chip with another circuit such as an A/D converter to provide a monolithic A/D converter with its own internal reference voltage circuit. The reference voltage circuit consists of a series-connected long channel MOSFET and short channel MOSFET which produce, at their junction, a temperature-independent voltage. A differential circuit containing three MOSFET devices is then provided with one of the devices serving as a current source which carries the current of the other two MOSFET devices which are in parallel. The gates of the two parallel MOSFET devices are connected respectively to the junction between the long channel and short channel device and to the output voltage.
    Type: Grant
    Filed: August 10, 1977
    Date of Patent: June 19, 1979
    Assignee: General Electric Company
    Inventors: Walter J. Butler, Charles W. Eichelberger
  • Heterocyclic-coupled polymers of polyphenylene oxides
    Patent number: 4158728
    Abstract: Heterocyclic-coupled linear, branched and/or crosslinked polymers of polyphenylene oxides are described which comprise poly-functional heterocyclic radicals coupled with mono- and/or polyphenoxy radicals derived from (a) polyphenylene oxides having an average hydroxyl group per molecule value greater than zero including 1.0 or less, or (b) polyphenylene oxide-quinone coupled polymers having an average hydroxyl group per molecule value greater than zero including 2.0 or less, and mixtures thereof.
    Type: Grant
    Filed: June 20, 1977
    Date of Patent: June 19, 1979
    Assignee: General Electric Company
    Inventor: Dwain M. White