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  • [发明专利]USD3714782 _ GENERAL ELECTRIC CO,US 1969年04月15日
    A gaseous nuclear propulsion engine wherein cool propellant gas is introduced around the nozzle at the aft end of the chamber and caused to flow along the chamber's outer wall to the chamber's fore end where it is deflected into a converging annular s...
  • [发明专利]GB19690019781 _ BRITISH NUCLEAR DESIGN & CONSTRUCTION LIMITED 1969年04月17日
    1283195 Fuel elements BRITISH NUCLEAR DESIGN & CONSTRUCTION Ltd 17 April 1970 [17 April 1969] 19781/69 Heading G6C A fuel stringer comprises a column of fuel elements 3 slidably mounted on a tie bar 1, and a head unit 4 disposed above the fuel element...
  • [发明专利]USD3706924 _ ROYAL IND. INC. 1969年12月04日
    A programmed power supply rectifies multi-phase A.C. power to produce signal polarity D.C. voltage and applies the D.C. voltage to the stator windings of a multi-phase motor in a predetermined sequence so as to develop a rotating magnetic field, and t...
  • [发明专利]USD3793144 _ TELEDYNE INC,US 1969年07月30日
    A fuel element for a nuclear reactor of the passive metal hydride control type comprises a porous pellet of zirconium hydride and uranium of hexagon or other shape, thereby permitting assembly into a closely packed system. The porous pellet has a cool...
  • [发明专利]USD3711326 _ ATOMIC ENERGY OF CA LTD,CA 1969年06月16日
    There is provided an apparatus and a method for the uniform deposition of the beta emitting nuclide 147 Pm onto precisely defined areas. The technique both produces and deposits the emitting materials simultaneously without the need for separate pre...
  • [发明专利]USD3676675 _ NEUTRON PRODUCTS INC. 1969年05月29日
    Irradiation of material in packages is carried out continuously by a unique conveyor arrangement which transports closely spaced carriers containing the packages in vertical runs past a radiation source. The radiation conveyor utilizes extension arms ...
  • [发明专利]USD3668283 _ COMMISSARIAT A L'ENERGIE ATOMIQUE 1969年09月11日
    A method of fabrication of nuclear fuel elements having high impermeability to fission gases and made up of refractory fuel particles dispersed in a carbonaceous matrix, said fuel particles being coated with a mixture of graphite and an organic diluen...
  • [发明专利]USD3626493 _ COMBUSTION ENGINEERING INC. 1969年06月18日
  • [发明专利]USD3738912 _ NUKEM NUKLEAR CHEM U METALLURGIE GMBH,DT 1969年09月10日
  • [发明专利]USD3713973 _ COMMISSARIAT A L'ENERGIE ATOMIQUE,FR 1969年01月09日
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