30results about How to "Wear characteristic" patented technology

A rotary seal assembly for a rotary support table for use in drilling systems and the like to provide pressurized fluid to a rotary slip assembly disposed within the rotary support table is provided. The rotary seal assembly is designed to be coupled to an existing rotary support table which is used to rotate a drill string, and includes a powered slip that is powered into an engaged position to securely engage a pipe segment, for example, a casing segment. The rotary seal assembly generally comprises a ribbon of expandable material having an outer surface in fluid communication with a source of pressurized fluid, and an inner surface cooperative with a rotary housing, the rotary seal having a plurality of openings capable of communicating fluid between said outer and inner surfaces, wherein the outer seal surface has a surface area greater than the inner surface such that when the pressurized fluid is conducted to the outer surface of the seal a differential pressure between the outer and inner surfaces is created such that the inner surface of the seal is expanded to engage the rotary housing and form an annular fluid duct providing fluid communication between the pressurized fluid source and the rotary housing. A method of operating a rotary table and powered slip assembly utilizing the rotary slip assembly of the current invention is also provided.

A subsoil applicator has an upright shank provided with a leading soil-slicing edge and a pair of opposite sides. At the bottom of the shank, a pair of soil lifting wings are provided, presenting a pair of outermost wing edges that diverge rearwardly from the lowermost and forwardmost point of the shank to the rear extremity of the applicator. The wings are generally relatively thin and flat except for a thickened portion across their rear extremity making an upright, rearwardly facing rear wall. A pair of laterally spaced discharge outlets are located in the rear wall and communicate with an internal tubular passage within the shank for delivering substance down into the soil behind the wall as the applicator advances through the soil. The discharge outlets are located in undercut portions of the rear wall, while top, upwardly facing surfaces of the thickened portion are convexly curved to improve soil flow and provide extra protection against premature wear for the internal substance passageways.

The electrically motorized pump has a low energy loss because it uses of the shaft and the sleeve made from synthetic resin composition obtained by uniformly dispersing fine powder of RBC or CRBC in a resin. The typical process for the production of a synthetic resin composition for making the sleeve bearing for the pump for use in water includes kneading with a resin the fine powder of RBC or CRBC at a temperature in the neighborhood of the melting point of the resin, and thereby uniformly dispersing the fine powder of RBC or CRBC in the resin. Fibers, such as glass fibers, may be blended with the fine powder of RBC or CRBC and the resin.

The invention provides compositions of matter comprising coal body surfaces having improved characteristics for hydration and preservation of pristine surfaces, and which are compatible with both hydrophilic and hydrophobic liquid media. The coal body surfaces of the invention facilitate burning at low temperatures, avoiding emissions of nitrogen oxides, and also have improved properties for surfactant-free suspension in either water or oil media, as well as for liquefaction and gasification.

The invention provides a process that comminutes fuel solids in a steam-driven shear field, with controlled water content and catalyst, with gasification of the particles entrained in the vented steam. Unlike conventional gasification methods the invention requires no dioxygen to be present, and produces dry friable ash that has significant marketable value as a material in its own right.

The present invention provides an apparatus for hardening a metal article, comprising a holding device, an energy beam generator pointed at the holding device for directing energy beams at the holding device, and a cycling system supporting the holding device, wherein the cycling system varies the location of the holding device relative to the energy beam generator. The apparatus includes an energy beam delivery instrument system positioned between the energy beam generator and the holding device so that the energy an energy beam delivery instrument directs the energy beam to the holding device. Also, the apparatus includes an auxiliary heating device engaging the holding device, wherein the auxiliary heating device heats the metal article independently from the energy beam.

A magnetorheological fluid comprising a mixture of soft and hard iron particles, an organic based carrier fluid, and optional additives such as anti-friction, anti-wear, or surfactants unexpectedly have improved durability when used in devices for control vibration and / or noise, for example, shock absorbers, elastomeric mounts, dampers, and the like.