Abstract 982,991. Reciprocating pumps; raising liquids. Soc. Anon. DES ATELIERS ET CHANTIERS DE LA SAINE-MARITIME,andJ. GUILHEM. March 20, 1961 [March 22, 1960; Oct. 3, 1960; Dec. 13, 1960], No. 10024/61. Headings F1A and F1R. [Also in Divisions B5 and F4] A heat insulated drying pump for removing the last traces of liquid methane from the storage container 1, Fig. 8, comprises a floating piston of foamed plastic material 77, 77a Fig. 9 supported by a metal bowl 76 from which hangs a chain 84 and a ball 85 controlling an inlet port 88 through which liquid methane from a supply line 87 enters by gravity thereby raising the float until said point 88 is closed by the ball 85. The downward stroke of the piston is effected by a pulse of nitrogen gas from a source 72 controlled by an electric pulsator 73 whereby liquid methane is forced up a valved delivery line 89; return flow through line 87 being prevented by a check valve 75.
A CONTAINER FOR VERY LOW TEMPERATURE MATERIALS, PARTICULARLY LIQUEFIED OR SOLIDIFIED GAS, SAID CONTAINER COMPRISING AN INNER FLUID TIGHT TANK, AN OUTER TANK SURROUNDING AND SPACED FROM SAID INNER TANK, AND LAMINATED HEAT INSULATION BETWEEN SAID TANKS, SAID HEAT INSULATION COMPRISING A PLURALITY OF LAYERS, EACH COMPOSED OF A PLURALITY OF RIGID INSULATING PANELS, THE PANELS OF EACH LAYER BEING SEPARATED FROM THE OTHER PANELS IN THE SAME LAYER BY STRIPS OF YIELDING MATERIAL, AND THE SURFACES OF AT LEAST SOME OF THE PANELS IN EACH LAYER BEING SLIDABLE WITH RESPECT TO THE SURFACES OF THE ADJACENT PANELS IN ADJACENT LAYERS TO ALLOW FREE THERMAL CONTRACTION AND EXPANSION OF SAID INSULATING PANELS.
Claim 2
Dependent Claim
112 words
A CONTAINER FOR VERY LOW TEMPERATURE MATERIALS, PARTICULARLY LIQUEFIED OR SOLIDIFIED GAS, SAID CONTAINER COMPRISING AN INNER FLUID TIGHT TANK, AN OUTER TANK SURROUNDING AND SPACED FROM SAID INNER TANK, AND LAMINATED HEAT INSULATION BETWEEN SAID TANKS, SAID HEAT INSULATION COMPRISING A PLURALITY OF LAYERS, EACH COMPOSED OF A PLURALITY OF RIGID INSULATING PANELS, THE PANELS OF EACH LAYER BEING SEPARATED FROM THE OTHER PANELS IN THE SAME LAYER BY STRIPS OF YIELDING MATERIAL, AND THE SURFACES OF AT LEAST SOME OF THE PANELS IN EACH LAYER BEING SLIDABLE WITH RESPECT TO THE SURFACES OF THE ADJACENT PANELS IN ADJACENT LAYERS TO ALLOW FREE THERMAL CONTRACTION AND EXPANSION OF SAID INSULATING PANELS.