Patent application number | Description | Published |
20090312173 | VOLUME-CHANGE RESISTANT SILICON OXY-NITRIDE OR SILICON OXY-NITRIDE AND SILICON NITRIDE BONDED SILICON CARBIDE REFRACTORY - A reaction sintered silicon carbide-based product, including a silicon carbide component, a bond component, wherein the bond component includes silicon oxynitride in excess of any silicon nitride of the bond component, and at least one boron component residual to an amount present prior to reaction sintering to cause increased resistance of the reaction sintered silicon carbide-based product to volume change under oxidative stress, and methods of making the same. | 12-17-2009 |
20110151192 | ELECTROSTATIC DISSIPATIVE ARTICLES AND METHOD OF MAKING - An electrostatic dissipative (ESD) article includes a body having a volume resistivity within a range between about 10 | 06-23-2011 |
20120165179 | INFILTRATED SILICON CARBIDE BODIES AND METHODS OF MAKING - A composite article including a body made of recrystallized silicon carbide and an infiltrant, wherein the body comprises a static impact resistance of at least about 1800 MPa. | 06-28-2012 |
20120208690 | CRUCIBLE BODY AND METHOD OF FORMING SAME - An article including a monolithic crucible body comprising silicon oxynitride (Si | 08-16-2012 |
20130090228 | COMPOSITE BODY AND METHOD OF MAKING - A composite article having a body including a first phase that includes a nitride material, a second phase that includes a carbide material, and a third phase having one of an amorphous phase material with a nitrogen content of at least about 1.6 wt % or an amorphous phase material comprising carbon. | 04-11-2013 |
20130168079 | CONSTRUCTION ARTICLES AND METHODS OF FORMING SAME - A pipe choke for use in drilling and mining operations comprising a body including a first end and a second end configured to couple to a pipe, an opening extending through the body from the first end to the second end, and wherein the body includes a first phase comprising recrystallized silicon carbide and a second phase comprising silicon. | 07-04-2013 |
Patent application number | Description | Published |
20100230371 | METHOD TO MAKE AN ARM FOR THE DISTRIBUTION OF CONCRETE, AND ARM THUS MADE - A method to make an arm for the distribution of concrete, or other material similar to concrete, used on heavy work vehicles, wherein the arm comprises a plurality of segments selectively folding and extendible one with respect to the other. Each segment comprises a main girder and auxiliary elements for connection to adjacent segments or for attachment of movement and/or supporting devices for the pipe that carries the concrete. The method comprises a first step in which each main girder is formed, with a predefined length, by depositing a plurality of layers of pre-impregnated composite material in a female type mold. The method comprises a second step in which the composite material, deposited in layers in the mold in a variable number of layers, is subjected to polymerization. The method comprises a third step in which each main girder is removed from the mold and a fourth step in which the auxiliary elements are associated with each girder so as to form a relative segment. The method comprises a fifth step in which the extendible arm is assembled, connecting the various segments at the respective ends. The cross section of each of the main girders of the segments is substantially constant over the whole length thereof. The female mold consists of one or more elementary molds of equal section, connected in sequence with each other according to the overall length of the main girder to be made. | 09-16-2010 |
20140283942 | METHOD TO MAKE A CURVED TUBULAR ELEMENT TO CONVEY ABRASIVE MATERIALS SUCH AS CONCRETE OR SUCHLIKE, AND CURVED TUBULAR ELEMENT THUS OBTAINED - A method to make a curved tubular element comprising obtaining a first external curved tubular component, and a second internal curved component made of a material with a greater resistance to wear than the first external curved tubular component, and having a cross section which covers a portion of the internal surface of the first external curved tubular component. The first external curved tubular component includes at least two parts. Each of the parts has a cross section which is a respective portion of the complete tubular section of the first external curved tubular component; to bring the at least two parts near each other along respective connection edges, disposing the second internal curved component internally in contact with at least one of the two parts; to weld the at least two parts to define the first external curved tubular component and to enclose therein the second internal curved component. | 09-25-2014 |