Abstract: The present invention relates to a safety valve for a containment (16) comprising a tubular body composed of a main branch (11) and a secondary branch (12) connected to said main branch (11) and opening into it via an aperture in the side of said main branch, a piston (13) mounted so that it slides inside said main branch (11) to free the said lateral aperture from the main branch, an upper stop (14) and a lower stop (15) both mounted inside the main branch and limiting the upward and downward displacement of said piston (13), the lower section of said main branch (11) being subject to a reference pressure, wherein an additional safety apparatus (25) is positioned under the tubular body between the lower section of said main branch and said reference pressure such that the maximum safety throughput rate of which the valve is capable is released in the event of an incident.

Abstract: A fluid control valve having a valve body, a cage, and a flexible elastomeric diaphragm with a formed convolution to fully open the cage opening. An elastomeric diaphragm regulator with a flow diverter in the fluid flow path to reduce fluid flow separation and thereby reduce the required flow recovery area before pressure throttling. A raised knife edge seat located on the cage top in a position of stagnant fluid flow to reduce the build-up of contaminants on the seat. An elastomeric diaphragm regulator with a valve actuator coupled to a guided valve stem attached to the regulator diaphragm.

Abstract: The present invention is intended to provide an economically advantageous, high-performance water hammer preventing check valve capable of preventing both water hammer and pressure rise under any pipeline conditions when feed of a fluid is stopped and of easily designed and manufactured. The invention provides a water hammer preventing check valve which opens when a fluid is fed forward and closes when the feed of the fluid is stopped to prevent the fluid from reversing.

Abstract: A fluid-collecting receptacle includes a fluid-impervious base sheet having an upstanding perimeter lip, a sloping floor, and a fluid outlet in the floor. A porous support member is disposed atop the upper surface of the base sheet and a porous, flexible mat is disposed atop the porous support member. Openings in the mat and the porous support member permit fluid to be discharged onto the sloping floor where removal through the fluid outlet can be accomplished by means of a suction device. The device can be equipped with suction cups to prevent slippage or a rigidified foam core to strengthen the device and prevent slippage. In an alternative embodiment, the porous support member and the mat are replaced by a hinged sheet formed of a plurality of small basins each having a drain opening.

Abstract: A modular pneumatic distribution assembly comprising a plurality of modules, each formed by a pneumatic distributor fixed on a base which comprises at least one common length of pressure duct and at least one common length of exhaust duct, and means for fixing to an adjacent base, the assembly being remarkable in that each distributor is a distributor having a flat slide distributor communicating with the base via three distribution orifices and a pressure orifice, the axis of the slide mechanism being parallel to the direction of the common pressure and exhaust ducts in the bases, in that at least two distributors of the assembly are of different calibers, one having distribution orifices of a section that is at least twice the section of the distribution orifices of the other, and in that the outside profile of the section of each module on a plane perpendicular to the axis of the slide mechanism is identical regardless of the caliber of the distributor.

Abstract: A fluid flow control device for use in heat pump systems is provided. The device includes an elongated body shaped to define a plurality of lines of contact along the elongated body which reduces operational noise and which improves fluid flow characteristics. In a preferred embodiment, the device includes four or six lines of contact. The device may also include a highly angled nose region to improve seating and stability.

Abstract: An exhaust pipe cover that can be placed over the exhaust pipe of a truck or other vehicle that has a vertically oriented exhaust pipe. The purpose of the exhaust pipe cover is to prevent precipitation and dirt from entering into the exhaust pipe during the time that the truck or other vehicle is not being used. The exhaust pipe cover is to utilize a main section which has one end closed and the opposite end open which is to be placeable over the exhaust pipe. This main section can be shortened for shorter length exhaust pipes. This main section can be attached to an extension for longer exhaust pipes. The extension can be shortened by a longitudinally operated drawstring arrangement mounted within the extension so as to customize the cover to precisely the length of exhaust pipes on which it is being used.

Abstract: A multiple-tube flexible pipe (1) including a central flexible member (2) having high tensile and compressive strength, a casing (8) and a plurality of circumferentially arranged tubes (3) wound around the central flexible member to form at least one ply in a ring-shaped space between said central flexible member (2) and said casing (8). At least one of said circumferentially arranged tubes (3) has low compressive and/or tensile strength. The flexible pipe further comprises at least one flexible compressive force transmitting member (5) arranged in said ring-shaped space and adjacent to said tube (3, 4) having low compressive and/or tensile strength.

Abstract: A process for making a length of rubber tubing with axially spaced circumferentially corrugated flexible segments from a sleeve of uncured rubber and the product resulting therefrom. An end length of a sleeve of uncured rubber is placed over an end portion of a forming mandrel and an external form is placed around the sleeve end length. Rudimentary corrugations are then formed in the end length after which the sleeve is moved axially along the forming mandrel so that a new length portion of the sleeve is placed in a forming position. Then using the external form, rudimentary corrugations are formed in the second length portion of the sleeve. These steps are repeated until the desired number of axial length portions in the sleeve are provided with rudimentary corrugations. The resulting product is then cured to form a length of rubber tubing with a plurality of axially spaced circumferentially corrugated flexible segments.

Abstract: A diagnostic system for a jacquard machine having a plurality of heald hooks (16) moveable between at least two discrete shed positions, the system including visual sensing means (30) for producing a visual image of hooks (16) located at one of said shed positions during each weaving cycle, and control means (49) for comparing said visual image with a predetermined shed pattern for each corresponding weaving cycle in order to determine whether or not all the appropriate hooks have been selected to define the required shed pattern.

Abstract: A lifting heald assembly is used in a device which forms a leno selvedge on a fabric or hosiery. The heald assembly comprises two lifting healds and one half heald alternately taken along by the lifting healds. Each lifting heald has, in the area of one end, at least one first magnet for guiding the half heald and has a web for taking along the half heald. The spacing between the web and the magnet corresponds approximately to the length of the half heald's legs and the lifting heald (2, 3) is provided with at least one second magnet (61, 62) that is arranged in or on the lifting heald (2, 3) and longitudinally spaced from the first magnet (41, 42) in the direction of the web (23).

Abstract: An improved reed for weaving machines includes upper and lower channel members having an outer width and an inner channel width. A plurality of spaced apart dents have end portions held in the upper and lower channel members. Each of the dents comprises an upper leg portion adjacent to the upper channel member and a lower leg portion adjacent to the lower channel member wherein the lower leg portion has a width greater than the width of the upper leg portion.

Abstract: A selvage cutter for a weaving loom has a cutter guide (9A, 9B) that causes the cutter to follow the cut fabric edge (8A) dependent on any fabric edge shrinkage locations (SL). The cutter guide has a guide claw (9A) that is elastically urged into contact with the cut fabric edge (8A) by a spring mechanism (14, 14A) which causes the cutting blades (3, 5) to move along a cutting path (8B) that follows the contour of the cut fabric edge (8A), whereby each cut weft thread end (8B) protruding from the cut fabric edge (8A) has the same length and the cutting line conforms to the contour of the cut fabric edge (8A) including shrinkage locations (SL).

Abstract: A method for the face-to-face weaving of a pile fabric whereby on a weaving machine in successive insertion cycles in each case two weft threads (1), (2) are inserted almost simultaneously between binding warp threads and pile threads, so that two backing fabrics are woven, pile threads (3), (4), (5) have parts which form pile according to a two-shot weave and have other parts which are inwoven in a backing fabric, and two married pile threads (3), (4); (4), (5) perform a pile change. The successive positions (B=bottom; M=middle; T=top) of each pile thread (3), (4), (5) are predetermined in relation to the weft threads (1), (2) in a series of successive lift plans, of which every lift plan determines the positions in relation to the weft threads (1, 2) of two successive insertion cycles.

Abstract: A rapier clamp for an inserting rapier of a rapier weaving machine. The rapier clamp includes a first and a second holding member that are pivotally arranged with respect to one another and are in resiliently pre-biased contact. Between oppositely disposed surfaces of the holding members is spacing structure for creating a free space for receiving a weft thread. Holding sections for the weft thread are formed on the opposing surfaces of the two holding members and the holding sections include at least partially inter-engaging tooth grooves that extend along a longitudinal extent of the holding members.

Abstract: An apparatus for sensing the hydrocarbon concentration of the return vapor flow of a fuel dispenser equipped with a vapor recovery system. The apparatus includes a sensing housing positioned adjacent the vapor return passage so as to provide fluid communication with the return vapor flow and to discourage entry of liquid into the sensing housing and a vapor inlet positioned in the vapor return passage for admitting hydrocarbon vapor into the sensor chamber. Desirably, the sensing housing is angled to the vapor flow within the vapor return passage.

Abstract: A drip tray includes, in combination, a plurality of trays having a bottom and a raised peripheral sidewall extending from the bottom to define a liquid retaining enclosure. The plurality of trays are arranged in edge to edge relation to form a grid-like pattern. The trays are detachably secured together in edge to edge relation to maintain the grid-like pattern.

Abstract: A portable device for the retention of multi-fuel tanks on board marine vessels during the refueling process. The receiving receptacle will fit around the air vent on said tanks. Thus catching discharged fuels in its basin; from there it will pass into its own holding tank for later removal. It will cling to the side of vessel's hull with the aid of rope, counter weights and leverage levers.

Abstract: A particulate filling system for assisting in filling a container from a hopper containing a supply of particulate material is provided. The particulate filling system includes a conduit operably connected to the hopper and extending downwardly therefrom. The conduit is adapted to permit a flow of particulate material therewithin. A vacuum valve assembly surrounds a porous tube portion of the conduit and supplies a vacuum to the particulate material in the conduit which stops the flow of the particulate material between filling operations. The particulate filling system also includes a nozzle assembly operably connected to the conduit below the porous tube portion and extending downwardly therefrom. The nozzle assembly defines an inlet thereof for receiving particulate material from the conduit and defines an outlet thereof for dispensing particulate material from the nozzle assembly to the container.

Abstract: The present invention relates to a new and improved modification for converting a drill press into a wood lathe. Further, the present invention relates to an adaption kit for the modification of a conventional drill press into a general-purpose wood lathe. A drill press is modified for use as a wood lathe useful for shaping wood stock with a shaping tool. A driving spur is affixed to the chuck of the drill press for engaging one end of the wood stock. An adapter plate is affixed to the platform of the drill press. A tailstock is removably attached to the adapter plate for engagement of the opposite end of the wood stock. A tool rest is affixed to the adapter plate for use with a shaping tool.

Abstract: A veneer slicer comprises a frame and a flitch table for supporting a flitch for the slicing of veneer therefrom. The flitch table is supported from the frame. The veneer slicer further comprises a knife. The flitch table and knife are relatively movable along a path toward and away from one another. The flitch table is mounted on the frame for movement of the flitch across the knife in cutting and return strokes. The flitch table is supported from the frame by a guide member secured to one of the flitch table and the frame and a bearing member secured to the other of the flitch table and the frame for cooperation with the guide member. The guide member and bearing member form between them at least one channel for a plurality of bearings.

Abstract: A urethane wheel including a hard urethane hub formed with a rim facing radially outward, and including stand-off ribs spaced equidistant thereabout. The stand-off ribs having centering notches opening radially outward. A thin wall polyurethane annular bladder with an interior annular stand-off skirt facing radially inward, contacting the centering notches of the stand-off ribs, and cooperating to position the bladder both radially and axially about the rim. The tire body is formed of soft polyurethane which surrounds the rim, encapsulates the bladder creating and integral cavity, and forms a contoured surface. A method of manufacturing the wheel which includes selecting a pressurized annular bladder, locating the bladder both axially and radially about the rim, forming a concentric bridge space having axial communication channels between the rim and bladder, and then pouring liquid urethane in a mold to form the tire.

Abstract: The present invention provides a pneumatic tire having a tread portion comprising a plurality of axially spaced apart essentially longitudinal grooves separating essentially longitudinal ribs. On at least one of said ribs, transverse grooves or cuts repeat in the circumferential direction to form first and second land portions wherein the first land portions comprise blocks having a circumferential length greater than that of the second land portions. Said second land portion acts as a sacrificial bridge which provides traction improvement and minimizes undesirable surface anomalies during the service life of the tire.

Abstract: A pneumatic tire comprises a tread portion, the tread portion is provided in a center region with a row of long blocks and wide blocks which are disposed alternately in the circumferential direction of the tire, the center region has 30% of the tread width, the long blocks are such that the circumferential length (a) is larger than the axial length L1, the wide blocks are such that the axial length L2 is larger than the circumferential length (b), the ratio (a/b) of the circumferential length (a) and the circumferential length (b) is 1.1 to 1.5, and the ratio (S1/S2) of the surface area S1 of the long blocks and the surface area S2 of the wide blocks is 0.40 to 0.77. Preferably, the axial length L2 of the wide blocks is 18 to 30% of the tread width, and the long blocks and wide blocks are disposed such that at least one of the long blocks and at least one of the wide blocks appear in the ground contacting patch of the tire.

Abstract: A pneumatic radial tire capable of effectively controlling the occurrence of wandering phenomenon when being used in vehicles such as passenger car, small-size truck, truck, bus and the like is provided, in which a second tread zone contacting with a mountain side of a slant road surface is arranged so as to project toward a side of a first tread zone contacting with a flat road surface and camber thrust of the radial tire is increased by the second tread zone during the running on ruts and the like under loading.

Abstract: A corrosion resistant steel cord for reinforcing rubber articles, particularly a belt and/or carcass of a pneumatic tire, has a residual compressive stress inside the twisting helix of each steel filament such that a ratio R.sub.1 /R.sub.0 is less than one, where R.sub.0 is the radius of curvature of a helix in each helically formed steel filament obtained by untwisting of the cord and R.sub.1 is the radius of curvature of the helix after removal of a surface layer from the inside of the helix in the steel filament. The steel filaments have a tensile strength of 4,000-4,800 N/mm.sup.2.

Abstract: A method and device for applying a pattern onto a support for a sign utilize a foil comprising a pattern layer and a carrier layer with an adhesive layer uniting them. The pattern is cut out in the pattern layer of the foil by using a controlled cutting device, after which the foil is placed on a laminating table in an application device. A traverse is passed in controlled manner over the foil placed on the laminating table, and a self-adhesive transfer film supplied from a roll over and around a rotatably journalled press roll of a press device, is applied under pressure on the foil. The carrier layer and spill of the pattern layer are removed and the pattern parts remaining are brought into contact with the support, with the adhesive layer of the pattern parts now exposed. The press roll is then again passed over the transfer film, pattern parts and support so that the pattern parts are transferred permanently to the support, after which the transfer film is removed from the support.

Abstract: A method and apparatus for making a graphic product from a layer of sheet material on a carrier sheet uses stored machine readable data describing the periphery of the graphic product to cut and remove the product from the carrier sheet. The apparatus includes a feeding mechanism for feeding the layer of sheet material and a bonding web adjacent a thermal heating head. The thermal heating head has individual heating elements that are selectively energized to heat the bonding web throughout a patterned heat application area which overlies the portion of the sheet material corresponding to the weed or the graphic product designated for removal. The portion of the layer of sheet material secured to the bonding web is then separated from the carrier sheet. The apparatus can also be used to apply an adhesive inhibitor to one portion of the sheet material so that another portion can be removed with a conventional adhesive transfer web.

Abstract: A hand held stamp dispenser and applicator that feeds pressure sensitive stamps (self-sticking stamps on a backing tape) from a roll. The hand held stamp dispenser and applicator incrementally indexes each stamp by depressing and releasing a manually operated lever press pad. When the lever press pad is depressed three things occur with each press or squeeze that has effect on the dispensing and the application. First, a gear is rotated turning a mandrel to draw the stamp string through a feed channel, thereby, incrementally dispensing a stamp and automatically pealing off the backing tape and exposing the pressure sensitive adhesive. Second, prior to reaching the bottom of the press pad stop point, a latching pawl drops into a gear cog to prevent reversing of the gear and mandrel.

Abstract: A metal or metal alloy article is cast using an investment casting mold where the mold facecoat, and perhaps one or more of the mold backup layers, comprises an imaging agent distributed substantially uniformly throughout in amounts sufficient for imaging inclusions. The facecoat preferably comprises an intimate mixture of a refractory material and the imaging agent. Intimate mixtures can be produced in a number of ways, but a currently preferred method is to cocalcine the refractory material, such as yttria, with the imaging agent, such as gadolinia. The facecoat also can comprise plural mold-forming materials and/or plural imaging agents. The difference between the linear attenuation coefficient of the article and the linear attenuation coefficient of the imaging agent should be sufficient to allow imaging of the inclusion throughout the article. The metal or metal alloy article is then analyzed for inclusions by N-ray analysis.

Abstract: A continuous casting mold for metals is provided that is formed of an assembly of four metallic plates (13, 14) which plates have channels in their respective interiors. The channels are vertically oriented and serve to pass a fluid which is being circulated for the purpose of cooling. Two or more of said plates (13, 14) each have one or more horizontal channels (6a, 6b) in the upper part of the plate, which channels serve for circulation of cooling fluid and are independent of the aforesaid vertical channels, wherewith the said vertical channels are terminated at a level below said upper part of the plate.

Abstract: A continuous casting method and apparatus therefor wherein a reaction force/reduction controller selects a pivot reduction roll such that the thickness of the solidified shell of the cast slab having a liquid core is equal to the target thickness T.sub.ref, and calculates a difference between a thickness T.sub.in of the cast slab having a liquid core at the inlet of the reduction roll zone PRT and the target thickness T.sub.ref, i.e., .DELTA.T. The resulting value of .DELTA.T, i.e., a target reduction is provided to the reduction controllers 2 of the pivot reduction roll. The reaction force/reduction controller 1 assigns target reductions 1/3 .DELTA.T and 2/3 .DELTA.T to the two reduction rolls upstream of the pivot reduction roll. The reaction force/reduction controller 1 calculates a target pressure (P.sub.i +.alpha.) on the basis of the selected value for .alpha., and the resulting target pressure (P.sub.i +.alpha.

Abstract: A metal strip is continuously cast between a pair of heat conductive endless belts which serve to form a molding zone to solidify molten metal. The endless belts remove heat from the molten metal and are cooled when the belts are not in contact with the molten metal, which minimizes belt distortion.

Abstract: Venting difficulties in a heat battery including a first container (10) for housing a heat storage salt that may be in the solid phase or in the liquid phase, a heat exchanger (22) within the container (10) and a second container (12) surrounding the first container (10) in generally spaced relation to provide an insulating space (14) about the first container (10) along with coolant inlet and outlet connections (40, 42) to the heat exchanger (22) are avoided in a vent system (52) including a vent inlet (66) generally centrally located in the top wall (56) of the first container (10) generally centrally of the ends thereof. A vent passage includes a check valve (106) located in close proximity to the vent opening (66) and the vent opening is surrounded by a cup shaped baffle (60) having an opening (62) facing the interior of the container (10). A filter (78) is located between the check valve (106) and the opening (62) to the baffle (60).

Abstract: A die-cushion oil pressure locking device is composed of a locking cylinder which couples with the operation of the die-cushion device can be prevented the wrinkling when the mold products is processed, and an operating cylinder controls oil which is used in the operation of the locking cylinder; and a cooling oil cooler device made of stainless steel, being capable of falling down the increased-temperature oil which is discharged from the locking device body and regulated as to drop its pressure down in efficiency owing to provided the cooling oil cooler device having the inlet so that oil increased temperature through the locking device body passes through the off cooler tubes without the extra resistance in a durability at intermittent flow, and it is fallen down by a cooling water into the cooling device in a short time.

Abstract: A system for repairing leaks, cracks and crevices in a stator assembly of the type having a fluid cooling system. The system includes an anaerobically activated, liquid polymer curable sealant supply which is circulated through the fluid cooling system of the stator assembly. Sealant connectors place the sealant supply in fluid communication with the cooling system and a pump circulates the curable sealant supply through the cooling system to repair the leaks, cracks and crevices in the stator assembly. In the preferred embodiment, a secondary curing system provides an initial curing of the curable sealant to form a protective "skin" after the removal of the excess curable sealant from the fluid cooling system.

Abstract: A heat exchanger for heat exchange between a working fluid and a coolant having an inner casing, an outer casing, and an annular space formed therebetween. A tube bundle including at least one tube formed into a helical coil is located within the annular space. End plates are removably secured and sealed to the ends of the outer casing. Bulkhead fittings are mounted in openings of the end plates to seal the tube ends which pass through the end plates. The bulkhead fittings are sized to permit the end plates to be moved off of the bulkhead fittings in a direction away from the helical coil. The tube bundle may also include a separating plate extending longitudinally between the coils of two tubes within the tube bundle creating two separate passages through which coolant may flow. External tubes may be connected at the tube ends, outside of the outer casing and the end plates, such that the working fluid flows in a parallel single-pass flow or a series double-pass flow through the annular space.

Abstract: A sorption cooling exchanger module and a process for its use in sorption cooling processes is described. The apparatus, provides high efficiency sorption cooling operations by maintaining a characteristic diffusion distance between fin plates such that the sorption cooling process can be carried out with short cycle times which increase the efficiency of the sorption cooling process and increases the specific power. The apparatus comprises an adsorption zone comprising an adsorbent layer comprising a coating of adsorbent or comprising a paper layer containing a selective adsorbent. For sorption cooling processes, the heat transfer zone is disposed in tubes disposed normal to the fin plates. The apparatus provides an opportunity to provide an adsorber/generator module having a high fin plate density per unit length of tube without the characteristic diffusion distance becoming equal to the height of the fin from the tube resulting in an improvement in efficiency.

Abstract: A heat exchange unit and a beverage or food container including a heat exchange unit therein. The heat exchange unit includes a vessel having a plurality of thermally conductive discs with a layer of compacted adsorbent material such as carbon particles disposed between adjacent discs. The periphery of the discs are in thermally conductive contact with the inner surface of the vessel and each discs has at least one surface which defines a plurality of radially extending grooves terminating at the periphery to define a preferential flow path for gas under pressure to travel along the inner surface of the vessel wall. The periphery of the discs also define a plurality of notches, one at each groove terminal, to enhance the preferential flow path.

Abstract: A cooling device includes a refrigerant tank in which liquid refrigerant is boiled, and a radiator in which gas refrigerant is condensed. A connection pipe is formed in the radiator so that refrigerant communicates between the refrigerant tank and the radiator. An interior of the connection pipe is partitioned into a first communication passage and a second communication passage, and a restriction plate is provided between the first communication passage and a refrigerant-condensing passage of the radiator to prevent liquid refrigerant from flowing into the refrigerant-condensing passage. Thus, when heat-generating amount of a heat-generating member becomes larger so that liquid refrigerant is vehemently boiled in the refrigerant tank and a part of liquid refrigerant is blown upwardly together with refrigerant vapor, the restriction plate prevents the liquid refrigerant from flowing into the refrigerant-condensing passage of the radiator while gas refrigerant readily passes through the restriction plate.

Abstract: A two-phase or mono-phase heat-exchanger for at least one electronic power component wherein the heat-exchanger supports a plurality of heat exchange tubes, each having a heat exchange fluid therein, and wherein said heat-exchanger includes at least one rigid plate provided with zones for receiving portions of the heat exchange tubes and wherein the heat-exchanger includes opposite edges which are formed so as to be secured to edges of adjacent heat-exchangers in such a manner that front and rear surfaces of the at least one rigid plate of each heat exchange unit are coplanar when one heat-exchanger is secured to an adjacent heat-exchanger.

Abstract: In the case where a partition for partitioning a combustion gas passage inlet 11 from an air passage outlet 16 is defined by a plate 8 attached by brazing to end surfaces of a plurality of heat-transfer plates S1, S2 in a heat exchanger 2, durability of the brazed portions are prevented from being degraded due to a load F acting on the plate 8 by a pressure differential between a combustion gas and air. Thus a bonding base plate 26 is attached by brazing to the end surfaces of the heat-transfer plates S1, S2 with the front surface of the bonding base plate 26 brazed to the rear surface of a bonding flange 28, which is formed by bending an end of the plate 8 by right angles, and a bonding flange 27 having an L-shaped cross section is attached by brazing to an underside of the plate 8 and the front surface of the bonding base plate 26. Accordingly, the bonded portions are increased in rigidity to ease stress concentration, thus enhancing durability.

Abstract: A structure for supporting and at least transferring heat energy away from at least a first heat source interconnected thereto is disclosed. In one embodiment, the structure includes a deck member having a plurality of layers of thermally conductive fibers packed within a matrix material. Fibers of at least a first layer are orientable to transfer heat energy toward at least a first sidewall of the deck member, and fibers of at least a second layer are orientable about .+-.45.degree. relative to the fibers of the first layer to enhance the structural strength of the deck member. In another embodiment, fibers of at least a first layer of thermally conductive fibers of the deck member are orientable to transfer heat energy from a first heat source to a second, cooler heat source, both of which are interconnectable to the deck member, such that the first and second heat sources operate at substantially uniform temperatures.

Abstract: A temperature control unit for independent control of a number of independent channels, as can exist with a cluster tool used for semiconductor fabrication, has high efficiency, long term life and reliability, and requires only a small floor area. To these ends, the unit employs a single high capacity refrigeration system and disposes a number of separate temperature control channels for the individual tools, with only some channels receiving refrigerant. Low temperature channels use high pressure, sub-cooled refrigerant for chilling the heat transfer fluid to selected levels controlled by proportional valves adjusting refrigerant flow through evaporator heat exchanger units which cool heat transfer fluid. Moderate temperature channels cool the heat transfer fluid for associated tools to an ambient temperature level.

Abstract: A multi-room air conditioning system includes an outdoor unit and a plurality of indoor units connected in parallel to the outdoor unit. A compressor frequency and combustion control calculator reads a load level for each indoor unit from a load coefficient table using a differential temperature calculated by a differential temperature calculator and a rated capacity stored in a rated capacity memory. The compressor frequency and combustion control calculator then multiplies a sum of the load levels by a predetermined constant and adds a compensation value thereto to obtain a frequency value. This value is used to control the compressor. The compressor frequency and combustion control calculator also sets a target combustion level using the frequency value for control of a refrigerant heater mounted in the outdoor unit.

Abstract: This disclosure sets out an induction logging tool enclosed in a cylindrical shell between top and bottom located end connected subs of larger diameter. The ends are larger; they define a standoff distance above a specified minimum to enable operation in a well borehole without centralizers.

Abstract: A locking device has a lower concave housing suitable to receive and hold an upper end of an element to be attached to a drill stem. The housing forms a conical surface. A number of blocks slides along the conical surface. Each block has an outside sliding surface that is parallel to the conical surface and has an inside surface suitable to engage the elements to be held. The blocks are mounted to slide along the conical surface. The blocks are moveable from a first, free position in which the blocks are pushed toward the lower, outside surface of the conical surface to a second, locked position in which the blocks are radially clamped against the element to be hold.

Abstract: A packer apparatus for sealing between a tubing string and a casing in a wellbore is disclosed. The packer apparatus includes a seal assembly disposed about a packer mandrel. Upper and lower seal wedges are disposed about the packer mandrel above and below the seal assembly and may be inserted between the seal assembly and the packer mandrel to radially expand the seal assembly into engagement with the casing. The seal assembly includes an expandable elastomeric seal element having anti-extrusion bridge elements disposed in recesses at the upper and lower ends thereof. The anti-extrusion elements form an almost complete circle and thus are arcuately shaped having first and second ends with a gap therebetween.

Abstract: A novel centralizer system adaptable to virtually all known rock and soil anchoring applications. Most preferably made from a petroleum based material, the primary components to the centralizer include a plurality of straps and two collars at opposite ends of the straps. The straps are easily and manually inserted into slots in each of the collars. Each collar may be molded to provide slots for three or more straps. The collars are molded with grout passages between slots thereby allowing more than the required amount of grout to be fed through the centralizer. On a least one strap are molded two lock hold pins distally located along an outer edge of the strap yet before the point where the strap is inserted into each collar. A separate yet component tool is manually and virtually simultaneously placed over both lock pins. The tool is a narrow band of material punched with a plurality of holes and placed over both lock hold pins.

Abstract: A method is disclosed for installing a tubular member, having an upper end and a closed lower end, axially into and through an over-pressured region of the earth by using a mandrel to drive the tubular member from near the bottom, which results in a significant section of the tubular member being pulled through the over-pressured region. In another embodiment, a filler material is inserted into at least a portion of the tubular member, and the tubular member is driven from the upper end, with the filler material assisting the progression of the tubular member through the over-pressured region.