Abstract: Apparatus for, and method of, hydrostatically testing whether a line filled with a liquid, such as gasoline, is leaking comprising mechanism for closing one end of the line to be tested and an upstanding cylinder having its upper end coupled to the opposite end of the line to be tested. The cylinder is transparent and filled at its upper end with a liquid identical to the liquid in the line being tested and at its lower end, a second liquid of a substantially heavier density so that the liquids do not mix. Mechanism is provided for applying pressure to the heavier density liquid to force the liquid in the upper end of the cylinder into the line. The cylinder is transparent and includes graduations thereon so that the user can visualize whether or not the junction is moving.

Abstract: Apparatus for and method of testing whether a tank completely filled with liquid is leaking comprising a liquid containing standpipe in fluid communication with a tank to be tested, and mechanism for maintaining a substantially constant head pressure on the bottom of a tank being tested as the volume of liquid from the tank tends to expand or contract.

Abstract: Process for decontaminating exhaust gas from a fusion reactor fuel cycle of exhaust gas components containing at least one heavy hydrogen isotope selected from tritium and deuterium in compound form, in which the at least one heavy hydrogen isotope is liberated from its compound, separated out from the exhaust gas and fed back into the fuel cycle, the compound form being at least one compound which is ammonia or a hydrocarbon, comprising:(a) converting the at least one heavy hydrogen-containing compound into its elements in the exhaust gas by cracking the at least one heavy hydrogen containing compound with a cracking medium to liberate the hydrogen isotope,(b) passing the liberated hydrogen isotope through a membrane to separate out the liberated hydrogen isotope from the flow of the remaining exhaust gas, and(c) discharging the remaining decontaminated exhaust gas into the surrounding air.

Abstract: A polyurethane-based reactive mass composed of(a) at least one organic compound in the molecular weight range of from 400 to 12000 containing isocyanate reactive groups and having a functionality from 2 to 8,(b) optionally an organic compound in the molecular weight range of from 62 to 399 containing isocyanate reactive groups and having a functionality from 2 to 8.(c) catalysts,(d) aliphatic isocyanate compounds and(e) optionally other auxiliary agents and additives known per se,characterized in that the aliphatic isocyanate compound used is one based on hexamethylene diisocyanate, hydrogenated diphenylmethane diisocyanate or isophorone diisocyanate containing isocyanurate and/or uretdione units and/or urethane and/or uretoneimine and/or oxadiazatrione groups is suitable for the production of lightfast coatings, including coatings in light colors, in particular for the formation of edgings round wooden panels without these panels having first to be dried down to the maximum dampness of 7% by weight.

Abstract: In a method for immobilizing a radioactive noble gas in a zeolite matrix by pressing the noble gas, after heat treatment of the zeolite matrix, into the cavities of the structure of the zeolite matrix under high pressure, and cooling the matrix while maintaining the pressure in order to encapsulate the gas in the cavities, use is made of a zeolite matrix composed of an alkaline earth metal exchanged zeolite having a 0.5 nm pore diameter and of the general compositionM.sub.6 [AlO.sub.2).sub.12 (SiO.sub.2).sub.12 ]. H.sub.2 O,where M is Mg, Ca, Ba or Sr.

Abstract: A method of producing lightweight building blocks, in which an expandable or foamable ceramic material is charged into a mold, compacted and then fired with subsequent cooling.

Abstract: A foamed ceramic product and method for making same is disclosed. The foamed ceramic is characterized by a high compressive strength, high insulating properties and low fluid permeability when compared against conventional materials. This foamed ceramic is made by mixing a clay mineral with a foaming agent comprising a combination of sulfate and sulfide compounds, heating to a temperature of about 1,000.degree. C. where controlled foaming occurs and then cooling the resulting foamed product.Additionally, there is disclosed a foamed ceramic product and method for making same which is characterized by its fire resistant properties as a result of creating micro cracks therein which permit controlled fluid permeability. This foamed ceramic product is made by controlling the phase constituents and heating and cooling temperatures to induce stresses which result in such micro cracks.

Abstract: A foamed ceramic product and method for making same is disclosed. The foamed ceramic is characterized by a high compressive strength, high insulating properties and low fluid permeability when compared against conventional materials.The foamed ceramic is made by mixing a clay mineral with a foaming agent comprising a combination of sulfate and sulfide compounds, heating to a temperature of about 1,000.degree. C where controlled foaming occurs and then cooling the resulting foamed product.