A damage-resistant filter for use in subterranean wells has at least one layer of a filter medium, such as a sintered supported porous membrane, coaxially disposed about a perforated support member. The filter may also include a drainage layer disposed between the inner support member and the filter medium, and a protective covering, such as a perforated cage, surrounding the filter medium. The fi...

A damage-resistant filter for use in subterranean wells has at least one layer of a filter medium, such as a sintered supported porous membrane, coaxially disposed about a perforated support member. The filter may also include a drainage layer disposed between the inner support member and the filter medium, and a protective covering, such as a perforated cage, surrounding the filter medium. The fi...

Fluid from a producing well is accumulated in an accumulator (10) and allowed to separate into free water, a water-continuous phase and an oil-continuous phase; the separated fluid flows through a monitor (30) having electrodes (104-106;152-157) exposed to the fluid; a power source (125) provides an AC voltage and current to the electrodes and provides an injection voltage signal (Vi) and an injec...

Rotary cutting apparatus including a framework supporting, between two vertical uprights (2), two superimposed cutting cylinders (4, 5), the two opposite coaxial stub axles (4b) of the upper cutting cylinder (4) being mounted respectively with rotation in two opposite bearing blocks (9) capable of sliding vertically whereas the two opposite stub axles of the lower cutting cylinder (5) are mounted ...

A bead lock apparatus incorporating in a tire building apparatus and a method of locking a bead ring (4) by using the bead lock apparatus for transferring a bead ring from a bead setter (5) engaging the inner circumferential surface of the bead ring to the tire building apparatus at a predetermined position thereon. The bead lock apparatus includes a plurality of first bead lock segments (6) posit...

A solenoid actuator, adapted for use in a fuel injector, has a pole member, an armature associated therewith, and an energizable winding associated with the pole member. The solenoid actuator is latchable by residual magnetism between the pole member and the armature without the aid of a permanent magnet. The pole member and the armature are composed of steel having a carbon content of between 0.8...

The lifting magnet has a core (5) with a projection (5.1) which fits into an opening (1.3) in the yoke (1,7) lying on the longitudinal axis of the magnet. A pole plate (4,9) is fastened to the yoke (1,7) and lies opposite the core (5). The armature (6) is axially adjustably guided in the passage of the spool body (2,8) which carries at least one coil (3). The core projection (5.1) is conical and i...

The dc lifting magnet has a U-shaped armature (1) and two identical coil bodies (2,3). Each coil (2,3) is struck on to one shoulder (1a,1b) of the armature (1) and has flanges (2a,2b,3a,3b) at its axial ends. Two coils (4,5) are wound around the spool bodies (2,3). A magnetic yoke (6) lies opposite the armature shoulders (1a,1b). A cross-piece formed projection (A) is formed integrally with the up...

PCT No. PCT/AT94/00105 Sec. 371 Date Apr. 19, 1995 Sec. 102(e) Date Apr. 19, 1995 PCT Filed Aug. 2, 1994 PCT Pub. No. WO95/05888 PCT Pub. Date Mar. 2, 1995.A process for the purification of aqueous solutions of amine-oxides, characterized in that said solutions are contacted with an aqueous purification solution of an alkali hydroxide and/or ion pair reagent by means of an anion active membrane. B...

The present invention is related to an abrasive tool comprising a core and abrasive segments attached to said core wherein said abrasive segments comprise a bond material and superabrasive grains and wherein said segments comprise at least two circumferentially spaced regions and wherein said superabrasive grains are alternately dispersed in said regions in high and low concentrations of superabra...

PCT No. PCT/GB93/02671 Sec. 371 Date Sep. 9, 1994 Sec. 102(e) Date Sep. 9, 1994 PCT Filed Dec. 30, 1993 PCT Pub. No. WO94/16466 PCT Pub. Date Jul. 21, 1994.This invention relates to apparatus for assembling battery plates and includes mould, generally indicated at 10 which defines a pair of ducts 11, 12 which supply respective sets of mould cavities 13, 14 via weirs 15. Each feed duct 11,12 has a ...

A biaxially oriented polyester film comprising a copolyester which contains a lubricant having an average particle diameter of no greater than 2.5 mu m and has a melting point of from 210 to 245 DEG C, the film having a plane orientation coefficient of from 0.10 to 0.16, a thermal shrinkage at 150 DEG C of no higher than 10%, and a density of lower than 1.385 g/cm<3>, and optionally a refractive ...

A mold for molding vulcanization according to this invention is provided with top and bottom forces (1), (2), a sector (3) surrounding the outer circumference between these forces (1), (2), and an actuator (4) adapted to be moved vertically relative to the sector (3) to expand and contract the sector (3) in the radial direction. The actuator (4) is divided into upper and lower actuator portions (4...

The process comprises: (1) treating the recycle stream with (a) at least one inorganic base and (b) at least one nonionic surfactant under conditions and for a time sufficient to decrease the contact angle of the polyethylene terephthalate flakes with water below a value of 25 DEG while maintaining the contact angle of the polyvinyl chloride flakes above a value of about 45 DEG ; (2) adding the t...

A combined extruder and welder appts. for use with thermoplastics has a heated feeder with extruding screw which passes the material through a nozzle in a welding shoe to the place for welding a sheet; it also has an air heater which heats the welding point via a nozzle, and a temp. regulator. The last regulator controls the air and material temps. for the welding material emerging from the nozzle...

A rigid foam, especially a largely closed-cell polyurethane or polyisocyanurate rigid foam, includes a cell structure being formed by the expansion of rigid foam raw materials with carbon dioxide as an inflating agent. The cell structure is substantially homogeneous and has a cell content of substantially CO2 inflating agent and proportions of a physical inflating agent being at least substantiall...

The present invention relates to a ski binding part for retaining a ski boot at the front or rear end of its sole, which is mounted so as to be adjustable in the longitudinal direction of the ski, on a base plate which is to be fitted on the ski, and is loaded by a compression spring at least when the ski boot is inserted, a row of recesses extending in the longitudinal direction of the ski being ...

PCT No. PCT/FI95/00253 Sec. 371 Date Jan. 22, 1997 Sec. 102(e) Date Jan. 22, 1997 PCT Filed May 12, 1995 PCT Pub. No. WO95/31759 PCT Pub. Date Nov. 23, 1995The invention relates to an autonomous navigation system for an unmanned vehicle. The tracks or wheels are driven by hydraulic reversible motors, having the output thereof regulated by valves whose relative control can be used for controlling b...