Matches 251 - 300 out of 439 < 1 2 3 4 5 6 7 8 9 >
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4521355 Method of producing ceramic ware  
A method of producing decorative ceramic ware is disclosed. In the first step, a flocculant is added to an aqueous suspension containing as main solid components a fibrous material and a ceramic...
4519967 Method of making a silicon metal containing article  
A method of making a silicon metal containing article is characterized in the following steps. A water vehicle first slurry is formed which contains silicon metal particles, this first slurry being...
4505866 Process for producing a boehmite shaped product and a burned boehmite shaped product  
A process for producing a boehmite shaped product comprises slurrying a mixture of a gibbsite powder and at least one powder selected from the group consisting of powders of pseudo-boehmite,...
4497662 Moulded product  
A process of moulding a product (and a product thus formed) wherein particulate ligno-cellulose such as shredded paper, flour, Portland cement, a small amount of caustic soda, and water are mixed...
4496503 Method of making a densified silicon nitride/oxynitride composite  
A method of making a densified silicon nitride/oxynitride composite is disclosed. The method comprises: (a) shaping a substantially homogeneous powder mixture of silicon nitride, 6-18% yttrium...
4483785 Electrically conductive and corrosion resistant current collector and/or container  
An improved electrically conductive current collector suitable for use in high temperature applications in the presence of corrosive environments comprising: (A) a high strength, noncorrosive...
4472332 Process for the production of porous ceramic molded articles  
A process for the production of a porous ceramic mold is described, compsiging adding about 40 to 60 parts by weight of water to 100 parts by weight of a ceramic material, mixing the thus-formed...
4471060 Method of forming a relatively stable slip of silicon metal particles and yttrium containing particles  
The method concerns forming a relatively stable slip of silicon metal particles and yttrium containing particles. In one embodiment, a casting slip of silicon metal particles is formed in water....
4447380 Expanded inorganic aggregate bonded with calcium silicate hydrate as thermal insulation  
Rigid shaped articles of expanded inorganic aggregate, such as expanded perlite, bonded with calcium silicate hydrate and preferably reinforced with fibers, are made by mixing a hydrothermally...
4428895 Composite inorganic structures and process of producing same  
Composite inorganic articles are produced by bringing two separate inorganic slurries, each containing different ceramic materials, into contact with each other, simultaneously freezing the...
4420525 Thin decorative cementitious veneers and a method for making same  
Novel thin flexible decorative colored cementitious veneers of about 5 to 60 mils in thickness, useful in wall coverings, floor coverings and on ceilings; and methods of producing said thin...
4413966 Fluid-release mold and the method of manufacturing the same  
A fluid-release mold is disclosed. The mold includes a preformed, porous mold body having a mold face formed on a first exterior surface and a second surface. A groove is formed in the second...
4404154 Method for preparing corrosion-resistant ceramic shapes  
Ceramic shapes having impermeable tungsten coatings can be used for containing highly corrosive molten alloys and salts. The shapes are prepared by coating damp green ceramic shapes containing a...
4401613 Method of making thermal-insulating module  
A method of making a thermal-insulating panel for use in an electric furnace. A refractory fiber mat is formed in a felting box from a suspension of discrete refractory fibers plus an inorganic...
4396595 Method of enhancing the optical transmissivity of polycrystalline alumina bodies, and article produced by such method  
The in-line transmission of a translucent polycrystalline alumina arc tube for a high-pressure sodium discharge lamp is improved by as much as 50% by dipping the "green" tubular compact in an...
4393018 Method for making a concrete block  
A method for making metal fiber reinforced concrete block which comprises formimg a mix of aggregates to which metal fibers and the cement are added. Water is added to the mix to form a mixture...
4390583 Alumina-alumina composite  
Multifilament fibers of alumina are fabricated into a multi-directional preform which is densified through repeated infiltration with an aqueous solution of colloridal alumina, dried and fired.
4389359 Methods of making asbestos-free, glass fibre reinforced, cement composite products and the products of such methods  
A method is provided for making a cement composite product such as a flat or profiled sheet, or a pipe, containing glass fibre as reinforcement instead of the traditional asbestos, wherein a cement...
4383959 Solar heater  
A novel method of making a solar collector is disclosed and described. The solar collector includes a base and a plurality of upstanding walls extending about the perimeter of the base. An input...
4364883 Ceramic products and method of drying same  
Ceramic products are produced containing a network of glass filaments having a hydrophilic surface. This network of filaments aids the transfer of water from the center of wet ceramic bodies to the...
4361529 Method for producing plate or tape shaped silicon crystal bodies having crystalline pillar-like structures, equivalent to columnar structures, for large surface solar cells  
The invention provides an improved method for producing plate-shaped or tape-shaped silicon crystal bodies having pillar-like structures therein which are equivalent to columnar structures...
4354993 Method of manufacturing a magnet body  
A method of manufacturing a sintered permanent magnetizable body essentially consisting of a ferrite of the formula MeO.6Fe 2 O 3 , wherein Me is at least one of the metals barium, strontium and...
4341725 Molding refractory and metal shapes by slip-casting  
Dense, essentially flawless, complex refractory or metal shapes are formed by preparing a casting slip of fine refractory or metal powder wherein the slip liquid preferably contains 0.1 to 10% by...
4338272 Slip-casting system  
A slip-casting system utilizing a ceramic powder for the mold. The system facilitates casting thin-walled and/or long objects without additives for demolding.
4333895 Apparatus for moulding magnet compacts  
A method of moulding magnet compacts in a die surrounded by an induced magnetic field, the die being surrounded by a mass of material having a high magnetic conductivity so that the induced...
4325899 Method for heat forming hardboard and other types of forming board  
A method and apparatus for heat forming hardboard and other types of forming board including the steps of placing a mesh screen in a die between upper and lower platens having mating contours,...
4320080 Method to manufacture soft magnetic pressed bodies  
To permit use of less expensive iron powder material and manufacture of more complex shapes, a mixture of iron powder, of an approximate grain size of between 30 to 450 μm, and containing...
4316864 Method and apparatus for slip casting toilet bowls  
Method for slip casting toilet bowls and as mould for casting ceramic material in slip form, including a compartment having an air impermeable wall and arranged, in the casting position of the...
4310477 Method of making a silicon nitride part  
A method of making a silicon nitride part is disclosed. In this method an article of silicon nitride is first made which has a density less than the theoretical density of silicon nitride. This...
4298561 Process for preparing calcium silicate shaped product  
An aqueous slurry of calcium silicate hydrate which is formed by heating a siliceous source and a calcareous source in water to react them and which has the specific property is shaped with a press...
4292262 Ceramic material processing  
An illustrative embodiment of the invention provides a technique for applying the deep heat capabilities of microwave energy to the problems of ceramic ware production. A plaster-of-paris mold,...
4289719 Method of making a multi-layer ceramic substrate  
A method of making a multi-layer ceramic substrate for an integrated circuit device package having internal circuitry by forming a plurality of porous ceramic bisque sheets, impregnating the pores...
4285895 Method of densifying a reaction bonded silicon nitride article  
A method of densifying a reaction bonded silicon nitride article is disclosed. In accordance with the broadest principles disclosed, a densification aid is incorporated into a reaction bonded...
4271110 Method of manufacturing a ceramic unit for indirect heat exchange and a heat exchanger unit obtained thereby  
A ceramic unit for indirect heat exchange, said unit being formed by extruding raw ceramic material in a parallel duct configuration, piercing a first series of inlet and outlet orifices for a...
4271112 Process for the manufacture of rotationally-symmetrical components from short-fibered molding material  
Process for producing a high-strength, rotationally-symmetrical component by appending short fibers of glass, carbon or aramid in an organic solvent, and depositing the fiber material in a rotating...
4268466 Method of forming a slip cast article of cellular construction  
A method of forming a slip cast article having at least one zone of cellular construction is disclosed. The method may be utilized to make articles having zones of different cellular size as well...
4264546 Method for producing silicon nitride molded bodies by means of pseudoisostatic hot pressing  
Method and apparatus for producing silicon nitride molded bodies by means of a pseudoisostatic hot pressing process. Silicon nitride is initially ground in a grinding vessel with grinding elements...
4259279 Method of casting in molds for the production of ceramic hollowware  
A rotatable carriage for supporting split-type plaster molds for molding ceramic hollowware is disclosed, in which the molds are retained between two frames rotatable to a succession of positions...
4259273 Formation of solid layers of material  
A process for forming a solid layer of intumescent material from a fluid material which comprises the steps of pouring the fluid material onto a mold and evaporating the liquid from the fluid...
4256792 Composite electronic substrate of alumina uniformly needled through with aluminum nitride  
An aluminum oxide-aluminum nitride composite electronic substrate with anisotropic thermal properties is described. The aluminum nitride is in the form of needles incorporated into the aluminum...
4252759 Cross flow filtration molding method  
A cross flow filtration molding apparatus and method are disclosed which are particularly useful for forming complicated shapes from dispersions of particles in a liquid medium. Dispersion is...
4251600 Method of preparing a sintered lithium aluminate structure for containing electrolyte  
A porous sintered tile is formed of lithium aluminate for retaining molten lectrolyte within a fuel cell. The tile is prepared by reacting lithium hydroxide in aqueous solution with alumina...
4244905 Method and apparatus for the manufacture of mold bodies, particularly pellets from secondary slurries of the metallurgical industry  
Method and apparatus for the manufacture of molded bodies from sludges in which a plurality of sludges having different average particle sizes are subjected sequentially to filtration and...
4241136 Glass fiber size composition and process  
A process and composition for treating glass fibers for use as reinforcement of cementitious materials. The glass fibers are first sized with a size composition containing cationic fiber forming...
4239716 Gypsum moldings as building materials and methods manufacturing the said gypsum moldings  
A gypsum moldings as building materials having high strength is obtained by use of fibrous α-calcium sulfate hemihydrate as a raw material. There are two methods manufacturing the said gypsum...
4222984 Method of wallboard manufacture  
To calcium lignin sulfonate is added a formulation of ammonium or sodium linear alcohol ether sulfate in a ratio to form an additive to calcined gypsum slurry which will reduce the water...
4219515 Water alkalinity control in the manufacture of hydrous silicate products  
The water resulting from the filter press molding of slurries of hydrated lime and reactive silica in the manufacture of hydrous calcium silicate products is recycled to the process by treating it...
RE30378 Process for recovery of polymers from their dispersions in liquids  
Polymers are isolated from their dispersions in liquid media in a twin-screw extruder, wherein the screws in the feed area are intermeshing and fully wiping each other and the extruder bore, the...
4217320 Slip cast article manufacturing method  
A method of forming a slip cast article is disclosed. The slip cast article is formed in a casting volume of a forming mold, which mold has a portion thereof formed of a meltable organic material....
4202857 Casting of articles from compositions containing calcined gypsum and Portland cement  
An article is cast from a composition comprising a binding agent containing, by weight, from 90% to 10% calcined gypsum and from 10% to 90% Portland cement mixed with water to produce a fluid...
Matches 251 - 300 out of 439 < 1 2 3 4 5 6 7 8 9 >