Patents Represented by Attorney Joseph T. Cohen
  • Patent number: 4178405
    Abstract: A magnetic belt for magnetic printing and the like has a relatively low surface resistivity provided by a conductive surface layer to eliminate unacceptable toner background.
    Type: Grant
    Filed: October 7, 1977
    Date of Patent: December 11, 1979
    Assignee: General Electric Company
    Inventors: Ami E. Berkowitz, Joseph A. Lahut
  • Patent number: 4178022
    Abstract: Tapered stainless steel spool pieces are welded to the ends of stainless steel pipe lengths at the factory to provide subassemblies which are then annealed and thereafter in the field are positioned with the larger free ends of opposed spool pieces disposed to receive weld metal uniting the subassemblies while coolant liquid is maintained in contact with the inside surfaces of the spool pieces.
    Type: Grant
    Filed: July 12, 1977
    Date of Patent: December 11, 1979
    Assignee: General Electric Company
    Inventor: Rodney E. Hanneman
  • Patent number: 4178187
    Abstract: Mixed oxide compounds La.sub.2 O.sub.3.11Al.sub.2 O.sub.3, NdAlO.sub.3 and nonstoichiometric MgAl.sub.2 O.sub.3 are suitable for making cores and molds for casting advanced superalloy materials such as NiTaC-13.
    Type: Grant
    Filed: January 5, 1978
    Date of Patent: December 11, 1979
    Assignee: General Electric Company
    Inventors: Irvin C. Huseby, Frederic J. Klug
  • Patent number: 4177856
    Abstract: A critical gas boundary layer Reynolds number has been defined to indicate processing conditions under which wide glassy alloy ribbons result when processing under various gaseous atmospheres and pressures and casting onto a moving substrate at an impingement angle .alpha..
    Type: Grant
    Filed: August 28, 1978
    Date of Patent: December 11, 1979
    Assignee: General Electric Company
    Inventor: Howard H. Liebermann
  • Patent number: 4177091
    Abstract: The magnetic properties of silicon-iron containing tin and very low sulfur are improved without impairing weldability by adding from 0.002 to 0.010 percent selenium to the melt.
    Type: Grant
    Filed: August 16, 1978
    Date of Patent: December 4, 1979
    Assignee: General Electric Company
    Inventor: Howard C. Fiedler
  • Patent number: 4177011
    Abstract: A sealing bar is provided for each gap between adjacent shroud plates to form part of the coolant recovery system of an open-circuit, liquid-cooled gas turbine. The undersides of the edges of the shroud plates at each gap are chamfered and a small cylindrical bar is supported in the recess provided thereby. Centrifugal force urges the bar into sealing engagement with the chamfered surfaces.
    Type: Grant
    Filed: April 21, 1976
    Date of Patent: December 4, 1979
    Assignee: General Electric Company
    Inventors: John H. Eskesen, Herman M. Leibowitz
  • Patent number: 4175972
    Abstract: Cationic polymerization of epoxy resin materials, such as epoxy monomers or prepolymers, can be achieved by use of certain radiation sensitive aromatic onium salts of Group VIa elements. Curable compositions are provided which can be used as sealants, coating compounds, encapsulants, etc.
    Type: Grant
    Filed: October 6, 1977
    Date of Patent: November 27, 1979
    Assignee: General Electric Company
    Inventor: James V. Crivello
  • Patent number: 4176112
    Abstract: Alkoxy substituted 1,3-dicarbonyl silyl ethers have been found to produce moisture curable organopolysiloxane compositions having optimum cure characteristics when such silyl ethers are utilized with silanol containing organopolysiloxanes. The moisture curable organopolysiloxane compositions can be used as adhesives, sealants and caulking compounds.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: November 27, 1979
    Assignee: General Electric Company
    Inventors: James A. Cella, Tyrone D. Mitchell
  • Patent number: 4176111
    Abstract: Organopolysiloxanes are provided having terminal 1,3-dicarbonyl cyclic organo siloxy units curable to the solid elastomeric state upon exposure to moisture under ambient conditions. The moisture curable organopolysiloxanes are useful as encapsulants, caulking compounds, adhesives, etc.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: November 27, 1979
    Assignee: General Electric Company
    Inventor: James A. Cella
  • Patent number: 4175973
    Abstract: Cationic polymerization of epoxy resin such as epoxy monomers or prepolymers, can be achieved by use of certain radiation sensitive aromatic onium salts of Group Va elements. Curable compositions are provided which can be used as sealants, coating compounds, encapsulants, etc.
    Type: Grant
    Filed: October 27, 1977
    Date of Patent: November 27, 1979
    Assignee: General Electric Company
    Inventor: James V. Crivello
  • Patent number: 4176296
    Abstract: A mounting assembly for a ferrite core disposed within a solenoidal electric field lamp comprises first and second members disposed in chord-like fashion, each having an opening for receiving the core, and in one embodiment, a third member which encircles the core in a chord-like fashion and also encloses the first and second members so as to fixedly hold them to the core when ends of the first and second members are stressedly anchored to points distal from the core. In another embodiment the third member comprises a circular band to which said first and second members are attached, said band being readily affixable to a glass pedestal header assembly. The mounting means cooperate with the lamp assembly so as to reduce the level of electromagnetic interference produced, and can be fabricated rapidly and inexpensively.
    Type: Grant
    Filed: June 22, 1978
    Date of Patent: November 27, 1979
    Assignee: General Electric Company
    Inventor: John M. Anderson
  • Patent number: 4176311
    Abstract: Smoke is detected by a surface ionization effect on a heated wire filament disposed opposite a negative ion collector electrode. Current flow between the wire and the electrode increases in the presence of smoke. The increase is probably attributable to surface ionization of smoke particles on the heated wire.
    Type: Grant
    Filed: December 23, 1976
    Date of Patent: November 27, 1979
    Assignee: General Electric Company
    Inventor: William D. Davis
  • Patent number: 4175963
    Abstract: Cationic polymerization of epoxy resin such as epoxy monomers or prepolymers, can be achieved by use of certain radiation sensitive aromatic onium salts of Group Va elements. Curable compositions are provided which can be used as sealants, coating compounds, encapsulants, etc.
    Type: Grant
    Filed: September 30, 1977
    Date of Patent: November 27, 1979
    Assignee: General Electric Company
    Inventor: James V. Crivello
  • Patent number: 4174380
    Abstract: Type Ib synthetic diamond crystal is annealed at an annealing temperature ranging from about 1500.degree. C. to about 2200.degree. C. under a pressure which prevents significant graphitization of the diamond during the annealing to convert at least about 20% of the total amount of type Ib nitrogen present in the crystal to type Ia nitrogen.
    Type: Grant
    Filed: December 14, 1977
    Date of Patent: November 13, 1979
    Assignee: General Electric Company
    Inventors: Herbert M. Strong, Richard M. Chrenko, Roy E. Tuft
  • Patent number: 4174235
    Abstract: The presence of antimony improves the magnetic properties of silicon-iron. Weld brittleness is reduced in addition to improving the magnetic properties by both adding antimony and lowering the sulfur content.
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: November 13, 1979
    Assignee: General Electric Company
    Inventor: Howard C. Fiedler
  • Patent number: 4174374
    Abstract: Disclosed are an improved method and apparatus employing at least one immobilized liquid membrane separated from a liquid sweep by a gas-permeable barrier for removing a gaseous component from a gaseous mixture. The improvements include use of one or more liquid-filled passages extending through the gas-permeable barrier to effect diffusive transfer of active carrier species from the liquid sweep into the membrane, thereby maintaining the separation efficiency of each membrane. In a preferred embodiment, the improvements are applied to removal of hydrogen sulfide from mixtures thereof with carbon dioxide as found in gasified coal.
    Type: Grant
    Filed: August 16, 1978
    Date of Patent: November 13, 1979
    Assignee: General Electric Company
    Inventor: Stephen L. Matson
  • Patent number: 4174432
    Abstract: Shaped flame retardant rigid thermoplastic foams are provided having high impact strength and superior smoke density and superior radiant panel test values. Blends of dichloroethylene bisphenol polycarbonate and a high performance thermoplastic polymer, such as isopropylidene bisphenol polycarbonate are injection foam molded under melt conditions to a variety of shaped structures.
    Type: Grant
    Filed: February 8, 1979
    Date of Patent: November 13, 1979
    Assignee: General Electric Company
    Inventor: George E. Niznik
  • Patent number: 4174095
    Abstract: A hydraulic jack includes a fixed, cylindrical member mounted on a base, and a moveable member mounted exteriorly around and shiftable on the fixed member. The interior of the fixed and moveable members defines an expandable and contractable chamber, which, when expanded with hydraulic liquid extends the jack upwardly. The space between the exterior surface of the fixed member and the interior surface of the moveable member defines a second expandable and contractable chamber, which, when expanded with hydraulic liquid retracts the jack downwardly. Adjustable lift elements are mounted on the moveable member and are adapted to engage a device to be elevated.
    Type: Grant
    Filed: February 17, 1978
    Date of Patent: November 13, 1979
    Assignee: General Electric Company
    Inventor: Donald I. Chipman
  • Patent number: 4173728
    Abstract: A metal vapor discharge lamp includes a cathode comprising a reservoir of liquid cesium. Metallic cesium which is eroded from the cathode surface by the action of the discharge is returned to the reservoir by the combined effects of gravity, evaporation, condensation, and diffusion to provide a highly stable, long-lived lamp.The intense infrared pulse output of cesium vapor discharge lamps of the present invention is well suited for triggering light-activated semiconductor switches through dielectric pipe networks and for pumping neodymium glass or neodymium-YAG lasers.
    Type: Grant
    Filed: May 19, 1978
    Date of Patent: November 6, 1979
    Assignee: General Electric Company
    Inventor: Harald L. Witting
  • Patent number: 4173551
    Abstract: Aromatic onium salts, such as diaryliodonium salts, have been found to be effective thermal initiators for the polymerization of a variety of cationically polymerizable materials including epoxides, cyclic ethers, phenol formaldehyde resins, etc., when used in combination with various cocatalysts such as organic acids and copper salts.
    Type: Grant
    Filed: December 16, 1977
    Date of Patent: November 6, 1979
    Assignee: General Electric Company
    Inventor: James V. Crivello