Abstract: The diamond drill bit comprises a steel powder comprising iron in a non-zero proportion of up to 99.6% iron and carbon in a proportion between 0.03% and 2.14%, coated diamonds impregnated in the steel powder, and a metallic infiltrant alloy comprising copper and one of tin, silver and both tin and silver; wherein the diamond drill bit is produced by an infiltration process that comprises providing the steel powder to form the matrix; dispersing coated diamonds in the steel powder; compressing the matrix comprising the steel powder and the coated diamond at a cold-compression temperature; after the compressing, adding to the matrix an infiltrant alloy comprising copper and one of tin and silver; and heating the mixture of steel powder, coated diamonds and infiltrant alloy at a fusion temperature allowing the infiltrant alloy to melt, wherein the infiltrant alloy infiltrates the matrix and binds it.

Abstract: A drill bit including a body section. The body section defines a body proximal end and a longitudinally opposed body distal end, and a body passageway extending longitudinally therethrough for receiving a fluid and conveying the fluid through the body section. An annular crown section extends longitudinally from the body section, the crown section defining a crown distal end and a longitudinally opposed crown proximal end, the crown section extending distally from the body section, the crown section defining a crown passageway extending longitudinally therethrough and in fluid communication with the body passageway. A flow directing component cooperates with the crown section to define a fluid flow channel extending through the crown section radially outwardly from the crown passageway, the fluid flow channel being self-modifiable upon the crown section reaching a predetermined wear threshold so as to modify a flow of the fluid through the fluid flow channel.

Abstract: A drill bit usable with a fluid, the drill bit comprising a body section, the body section defining a body proximal end and a substantially longitudinally opposed body distal end, the body section defining a body passageway extending substantially longitudinally therethrough for receiving the fluid and conveying the fluid through the body section; a substantially annular crown section extending substantially longitudinally from the body section, the crown section defining a crown distal end and a substantially longitudinally opposed crown proximal end, the crown section extending from the body section with the crown proximal end located substantially adjacent to the body distal end, the crown section defining a crown passageway extending substantially longitudinally therethrough, the crown passageway being in fluid communication with the body passageway for receiving the fluid from the body passageway; and a flow directing component cooperating with the crown section to define a fluid flow channel, the fluid

Abstract: A process is disclosed for managing or controlling fermentation product profiles in a parallel pair of beer product streams in which a brewer's wort is fermented to produce a beer having fermentation products therein. The beer is passed along a first side of a semipermeable membrane, under selective fermentation product passing conditions, to transfer selected fermentation products across the membrane, and into an unfermented beer wort on a second side of that membrane. This procedure results in the production of an unfermented wort having a permeate-supplemented fermentation product profile and a fermented wort having a permeate-reduced product profile. The unfermented wort is then itself fermented to produce a second fermented wort. The second fermented wort has a combination of fermentation-supplemented and permeate-supplemented fermentation product profiles. The respective fermented worts are then finished and-packaged for subsequent distribution and consumption.