Abstract: A fluid sample transfer device made of non-toxic inert material and preferably of virgin fluorocarbon material provides a sealed closed system for transferring a sample of the fluid to be analyzed for contaminants into a vial sealed by a self-sealing septum pierced by a pair of hypodermic needles of different length fixed to and extending from a bottom side of a body having a fluid inlet passage and a vent or outlet passage therein. A long needle is connected to the inlet passage and conveys fluid through and out its sharply pointed outlet end situated close to the bottom of a vial being filled therewith and a short hollow needle is connected to the outlet passage and extends to its pointed inlet end situated slightly below the septum of the vial to allow gas above the fluid filling the vial to escape. One embodiment is adapted for sealably connecting the upper portion of the body to a conventional bailer and has a valve for selectively preventing or allowing passage of fluid to the long needle and vial.

Abstract: Processes for making rigid ceramic bodies with one or more channels therein includes forming an outer tube of extrudable ceramic mix about an inner core of extrudable organic mix within the chamber of a piston type extrusion barrel composite, simultaneously extruding the outer tube and inner core through a tapered extrusion die having an extrusion outlet of smaller cross sectional size and area than the inner chamber of the extrusion barrel, cutting the extruded single core composite strand into shorter composite strands of equal length, filling the extrusion barrel with a plurality of the single core composite strands, simultaneously extruding the plurality of composite strands through the extrusion die and thereby forming a multiple core composite strand, cutting the multiple core composite strand into unfired green composite ceramic bodies and firing or alternatively prior to the cutting and firing steps again cutting the multiple core composite strand into equal lengths, refilling of the barrel therewith

Abstract: Straight and arcuately curved superheater tube shields of refractory material comprising a pair of elongated half shields of identical interchangeable interfitting and interlocking size and shape, each half shield having a semicircular sidewall of corresponding straight or arcuate shape of predetermined radius of curvature extending between opposite ends and to inner diametrically opposite inner sides lying in a central plane and the plane of curvature. A number of mating camming portions with inclined camming surfaces are precisely spaced adjacent each of the inner sides so that one of the half shields may be turned end for end relative to and assembled to the other about a correspondingly shaped superheater tube by a relatively short axial movement and engagement of the inclined camming surfaces whereby the half shields are pulled together to close the joints therebetween and interlocked about the superheater tube. A refractory cement may be applied to attach the half shields to the tubes.

Abstract: An efficient embossed packing element for exchange columns is made up of a plurality of preformed embossed vertical sheets, each having a plurality of elongated inclined troughs including converging embossed sidewalls, valleys, and ridges extending between upper inlet edges and lower outlet drip edges and projecting alternately outwardly from one side and then the opposite side of the median plane of each sheet. Projecting from the converging sidewalls of the troughs are a plurality of hollow protuberances with perforated peaks including small openings surrounded by edges of the wall about the peaks.

Abstract: In a device for the transmission of information from a borehole to the surface during the operation of a drilling device which comprises a rotary drill bit, a tubular housing and a pump which delivers a drilling fluid downwards through the tubular housing, through the rotary drill bit and upwards in the annular space between the tubular housing and the borehole, there is provided a detector arranged in the tubular housing, for detecting information, a processor for converting that information into a sequence of electrical control signals and a transducer for generating pressure pulses in the downwardly-directed flow of drilling fluid as a function of the control signals, and a remote detector arranged at a position spaced from the processor by a wire-less transmission path with a transmitter unit associated with the remote detector at one end of said path and a receiver unit at the other end of said path.

Abstract: A superheater tube shield of refractory material comprises a pair of elongated half shields of identical interchangeable interlocking size and shape, each half shield having a semi-circular sidewall portion extending between and to diametrically opposite tongue and groove side wall portions which are assembled together about the tubes by axially inserting elongaged tongues into the elongated grooves. Refractory cement may be applied to attach the half sheilds to the tubes.

Abstract: A cyclic screening apparatus (10) and method utilizes multiple air flows and differential air pressures to separate undersize and oversize particles from a mixture of 5 to 50 micron size particles. The apparatus (10) comprises a support (12) including a first conduit (14) connected to a blower (16). A lower undersize particle collecting housing (20) has a secondary air inlet (24) and outlet (26) connected to a suction fan (SF). A screen is clamped between the lower housing and an axially movable and pivotable upper receiving housing. An air distributor rotor (R) is slowly rotated below and directs the first air flow through the screen and into the upper chamber and through a lower portion (40) and against the bottom of lower housing. A rotary nozzle (80), with the help of incoming secondary air flow, disperses particulate material onto the screen below.

Abstract: An efficient low pressure drop packing element for exchange columns is made up of a plurality of preformed vertical sheets, each having a plurality of inclined rows of adjacent relatively short inclined troughs including valleys and ridges extending between upper inlet edges and lower outlet drip edges and projecting alternately outwardly from one side and then the opposite side of the median plane of each sheet. The sheets are arranged so that the inclined rows of the troughs in adjacent sheets are oppositely inclined and in criss-crossing relation to the inclined rows of the adjacent sheet of the packing element causing frequent changes in direction of liquid flow and whereby the both sides of each sheet are more easily and uniformly wetted by the frequently diverted liquid flowing downwardly over the surface thereof.

Abstract: A drive device for driving a drill bit for drilling bore holes in underground formations comprises a tubular housing for attachment to a drill string with a rotary drive means in the housing arranged to be driven by fluid forced through the housing. The rotary drive means drives an output shaft for connecting to a drill bit, the output shaft being supported by at least one axial bearing which comprises a continuous bearing ring and a retaining ring carrying a plurality of bearing segments which are swivellingly mounted to provide for a spacing of reducing cross-section between the bearing surfaces so that relative rotation of the bearing ring and bearing segments causes fluid to flow into the space and build up a hydrodynamic lubricating film.

Abstract: A device for delivering flowable materials from a production bore (2), consisting of a source of pressurized medium (1), a pressurized medium conduit (3) for conducting the pressurized medium into the bottom area of the bore, the pressurized medium being used to operate drive means (5) coupled to a pump (6) for the flowable material. The drive means (5) and the pump (6) are both rotary displacement devices having a spiral rotor (10, 12) which describes an eccentric rotational path within a spiral stator (11,13). The rotor (10) and the stator (11) of the drive means (5) and the rotor (12) and the stator (13) of the pump (6) have the same eccentricity and are rigidly connected to one another.

Abstract: A device for use in underground drilling comprising:a tubular housing,a down-hole motor mounted within the housing and having an output shaft,means for connecting said output shaft to a drill bit,means for connecting said housing to a drill string,first and second stabilizers mounted on said housing,said first stabilizer being mounted nearer than the second stabilizer to the output shaft connecting means,at least one of said stabilizers being an eccentric stabilizer, andat least one stress relieving means between the first stabilizer and the means for connecting the housing to the drill string.

Abstract: A supporting and guiding means comprises a centrally disposed support column (6) at the upper end of which at least one slide tube (1) is secured paraxially. A holding and guiding device (2) is arranged on said slide tube and retaining plates (4) act at the ends of said device, the retaining plates (4) engaging in the upper open end of at least two insulators or similar elongated ceramic articles (7) arranged outside of the support column and, upon shrinking of the insulators (7), following the shrinking movement in axial direction while, at the same time, holding and guiding the insulators (7).

Abstract: A compensation device for deep-well drilling tools with a transversely divided outer pipe, the pipe members (1 and 2) of which can be rigidly connected to one another by a screw thread (8) and comprise adjacent end faces (5 and 6) as stop faces which approach one another when the pipe members are screwed together and move apart from one another during the unscrewing, comprises a spacing member (3) which can be inserted radially, from the outside, between the end faces. The screw thread (8) has a length of engagement which secures the firm connection between the pipe members within the whole preset compensating range.

Abstract: A high-pressure sealing means for two parts of deep-well drilling tools which are longitudinally movable in relation to one another consists of a wearing sealing ring (7) which is disposed in an annular groove in a first part (1) and bears against the second part (2) and prestressed radially by a pressure ring (14). The wearing sealing ring (7) has a wall surface (13) extending substantially over its axial length, which seals against the second part (2). Moreover the ring (13) is smaller than the width of the annular groove (3) of the first part (1) receiving it and is displaceable between the two sides (4,5) of the annular groove for the selective formation of a static sealing surface at one of the sides (4,5) of the annular groove. The pressure ring (14) is formed from elastomer material, has a large volume, and is gripped, compressed and deformed between the wall surface (10) of the wearing sealing ring (7) situated opposite the sealing wall surface (13) and the bottom (6) of the annular groove.

Abstract: An auxiliary controlled valve including a valve body (8) displaceable against a valve seat (9) disposed in a drilling string (6) to produce pressure pulses in drilling fluid renders possible a selective closing or opening of a low-resistance transmission section (12) which lies parallel to a main throttle section (10). The valve has a central passage which permits the passage of measuring instruments through the valve regardless of the particular position of a valve body (8). The valve body (8) is largely balanced out with regard to dynamic flow forces so that only a comparatively small actuating force is necessary.

Abstract: A locking device for a tool with telescopically displaceable parts such as the various tools including a drilling jar used in the deep-well drilling art comprises thickened spindle portion (1) and a sleeve portion (2) with a displaceable sleeve (11) displaceable therein to and away from an axial abutment (17). The thickening of the spindle portion provided by a rigid tapered sleeve (3) with tapered end surfaces (5 and 6) and the sleeve (11) within the sleeve portion with an internal tapered surface (12) are coupled via locking balls (19) disposed for radial movement in an annular cage 20 between the rigid and displaceable sleeves 3 and 11. The sleeve (11) is held by an axial spring (16) in such a position that the balls come to lie axially between the axial abutment (17) and a region of the tapered sleeve (3) having a larger diameter and thereby form a constriction to the passage of the sleeve (3) of the spindle portion ( 11).

Abstract: A randomly dumpable self orienting or orderly stackable hollow or cellular plastic packing elements of uniformly distributed high surface area and open cells comprised of adjacent first and second hollow triangular structures angularly displaced 60.degree. relative to one another about a central axis each including inclined structural side members connected together at apexes of the triangular structure and at crossing portions of the inclined structural members of the first and second triangular structure. Each of the inclined structural side members of each triangular structure is connected to a radial structural member of a Y-shape structure located on the adjacent outer side of each of the first and second triangular structures and interconnected by a central hub about the central axis of the packing element.

Abstract: Apparatus for making and breaking screw couplings between pipe members of pipe and drilling strings, includes a rotatable chuck (9) and a fixed chuck (17), the rotatable chuck being provided with a fluid reservoir (111) which maintains the pressure in the pressure-fluid-actuated chuck so that continuous rotary movement of the chuck by a torque-producer (100) is possible for the complete screwing or unscrewing of the coupling.

Abstract: A bore hole wall undercutting or reaming device in which a rotatable tubular support housing (1) (61) is adapted for rotation by drive means, has at least one circumferential guide slot in its side wall for receiving and guidingly supporting a cutting tool (4) (60) for movement outwardly to and inwardly from a cutting position. The cutting tool may comprise either a rigid and/or resilient slide or pivot lever (9) having a trailing end portion supporting a cutting member (10) thereon and a leading end portion connected to the housing by a single rigid, or pivotal pull type connection by which the housing tensions and pulls the cutting tool (4) around during a cutting operation.

Abstract: A hollow lavatory setter (10, 10', 10", 10'") of recrystallized silicon carbide has a continuous wall of predetermined cross sectional size and shape including an outer wall portion (14, 14', 14", 14'") spaced from a bowl engaging inner wall portion (16, 16', 16", 16'") adjoining, extending around and defining the general configuration of a bowl receiving opening (18, 18', 18", 18'") and the peripheral mounting rim portion (R', R'") including a continuous mounting under surface of a rimless lavatory (L', L'"). Spaced upper (24, 24', 24", 24'") and lower (26, 26', 26", 26'") wall portions extend between the inner and outer wall portions and of which the upper wall (24, 24', 24", 24'") surface is adapted to supportingly engage and maintain the continuous mounting under surface of the peripheral mounting rim portion (R, R'") in a single plane during firing in a kiln and suitable for mounting on a counter top thereafter.