Abstract: A hose connector includes a cylindrical elongated member having a first and second end, a first and second inner sleeve rotatably mounted on the cylindrical member, and a first and second outer sleeve capable of connecting to the respective first and second inner sleeves.

Abstract: The sealing connector ensures sealing between a gas cartridge having an outlet fitting and a transmission member for filling a combustion chamber of a gas fastening device having an inlet fitting with gas and includes two internal sealing sleeves for receiving the two fittings, at least one of which is made of flexible material, with, at the bottom of this sleeve, a flexible transverse annular partition for dimensional adjustment, and an external slide. A rigid transverse annular partition is provided at the bottom of the other of the two sleeves to serve as a support for a fitting.

Abstract: A safety release adapter for making a sealed fluid connection with a male connector that is disconnected when a pulling force is applied between the adapter and the connector. The safety release adapter includes a base and a socket. The base receives and secures a first male connector. The socket includes a cavity with a lip at the distal end of the socket. The socket releasably secures a second male connector with the lip inside the socket opening engaging a neck of the second male connector. The first male connector extends into the socket in a sealed interface with the socket such that when the second male connector is secured in the socket with a sealed interface with the socket, the valve buttons of each connector are mutually depressed so the two connectors are in sealed fluid communication.

Abstract: A clamp for a tubular hose or cable is disclosed. The clamp comprises a first clamp half, a second clamp half, and a hinge pin. The first clamp half has a first end and a second end and defines a first concave semi-cylindrical face. The first end of the first clamp half carries means for mounting the clamp. The second clamp half has a first end and a second end and defines a second concave semi-cylindrical face. The first clamp half and the second clamp half come together along a parting line and are retained together by a hinge pin. The clamp halves are provided with snap-in liners for easy use. Alternative mounts for mounting the clamp on subsea wire line or tubulars is also disclosed.

Abstract: A sleeve-shaped anchoring element is disclosed for pipe couplings for connecting flat-ended pipes, with an essentially cylindrical housing and at least one sealing element consisting of rubber-elastic material which is arranged in the housing. The anchoring element is arranged in the housing and consists essentially of individual longitudinal supports which are connected to each other by means of deformable webs and have a C-shaped longitudinal section. The ends of the longitudinal supports are configured as limbs which are angled radially inwards. The free ends of the limbs can be brought into engagement with at least one of the pipes when the pipe coupling is clamped. In each case only one single web is provided between two adjacent longitudinal supports. The two webs of a longitudinal support are arranged offset with respect to each other in the axial direction for connection to the adjacent longitudinal supports, seen in the circumferential direction.

Abstract: The device according to the invention for connecting a suction hose has a connecting piece which is designed in such a way that the suction hose can be pushed over a region of the connecting piece in a sealing manner. The device also comprises a sleeve which can be pushed over the aforementioned region of the connecting piece, at least partially covering said piece and leaving room between the sleeve and the connecting piece for the suction hose. The connection between the sleeve and the connecting piece can only be separated by the destruction of at least one of said two parts. The design of the exterior of the sleeve prevents a second suction hose from lying in a sealing manner against the sleeve. A suction hose that is connected in a sealing manner to the claimed device can therefore not be removed without destroying the device. In addition, it is impossible to push a hose with a greater diameter onto the sleeve in a sealing manner.

Abstract: A pipe coupling (1) includes a pipe-shaped sleeve (2) being provided with a protruding flange (4) at least in one end, said flange having a tapering end face (6). The pipe coupling further including an annular gripping ring (13) divided into ring segments (17), an annular resilient sealing ring (12) provided between the flange (4) and the gripping ring (13), a pressure ring (8) and tightening means of the bolt/nut type (26, 27). The pressure ring (8) is divided into a number of separate, mutually interspaced ring segments (10) each provided with an abutment face (9) adapted to displaceably abut the end face (6) of the flange (4). The bolts (26) extend through elongated, radially extending openings (30) in the flange (4) and through clearance holes (32) in the pressure ring segments (10).

Abstract: A pipe connecting device (10) for connecting two pipeline portions (12, 14) of an aircraft pipeline system comprises a bridge portion (16), the cross-sectional form of which is matched to a cross-sectional form of the pipeline portions (12, 14) that are to be connected to each other. The pipe connecting device (10) further comprises a first receiving portion (18), which is constituted by two limbs (20, 22) extending from the bridge portion (16) in a first direction, and which is adapted to receive an edge portion (38) of a first pipeline portion (12) of the aircraft pipeline system, and a second receiving portion (24), which is constituted by two limbs (26, 28) extending from the bridge portion (16) in a second direction opposite to the first direction, and which is adapted to receive an edge portion (40) of a second pipeline portion (14) of the aircraft pipeline system.

Abstract: A tubular coupling system and method; the system and method in at least certain aspects, using a coupling member with an interior protective ring that has at least one inner energizing member which, upon compression, forces the body of the coupling member against an interior wall of the coupling thereby inhibiting corrosive material from contacting the coupling's interior wall or, in the event some corrosive material does enter this area, holding the interior protective ring against the coupling's interior wall so that the corrosive material remains in and does not exit this area, thus inhibiting or preventing a continuous flow of corrosive material.

Abstract: An improved static seal element, sometimes referred to as a gasket, which maintains contact with a pipe and a flange during and after seal compression, such seal being particularly useful in a removable pipe coupling. The improved elastomer static seal element is for the prevention of leakage from between two pipes to be connected end to end, a flange being provided to contact the element, and being at least partially contained in a sheet metal housing which is arranged to apply diametric pressure to seal the element against the outer surface of one of the pipes and against the flange, the improvement being the addition of a stabilizer and seal lip projecting beyond the outer diameter of the seal element to maintain the seal in position against the metal housing vis-à-vis the flange of the center component.

Abstract: A coupling according to the present invention has a socket (2) and a plug (30) that is inserted into and connected to the socket. The socket includes a socket body (10) having a first through-hole (13b) for a plug-locking element (12b) and an elongated second through-hole (13a) for a sleeve-actuating element (50), and a sleeve (50) set around the socket body. The sleeve is urged by a spring member (15) toward a position for pressing the plug-locking element (12b) against a locking recess (34) of the plug to prevent the plug from slipping out of the socket. The sleeve has a locking surface (50b) that presses the plug-locking element in the position described above. When being inserted into the socket, the plug engages with the sleeve-actuating element to move the sleeve rearward, thereby disengaging the locking surface from the plug-locking element.

Abstract: An end clamp housing for attachment to a cylindrical body, the side end housing being a unitary metal casting comprising; an open annular base element provided with a first, ingoing flange at a first side of the base element and a second ingoing flange at a second side of the base element. The second ingoing flange having a cross-section forming a loop extending outwardly beyond the base element; and a pair of clamp members projecting outwardly from the base element. The clamp members being positioned face to face and having an aperture to allow the insertion of a tightening element which can be operated to reduce the distance between the two ends of the open annular base element and thereby press an annular seal element against the outside of a pipe inserted through the seal clamp housing, which after release of the tightening element returns to its original dimensions.

Abstract: A joint for plumbing using a wedge action, which can easily and rapidly assemble and disassemble a pipe. The joint can maximize tensile stopping power of the product by mounting a stopper in such a manner as to occupy the maximum area, increase sealing effect and convenience in insertion of the pipe by adopting a packing the most suitable for the joint, and prevent introduction of dust from the outside. For this, a spring is designed in such a way that the final round of the spring forms a round, and thereby the present invention maximizes a stopper receiving capacity. In addition, the present invention adopts an X-ring as a packing, and a dust seal is mounted in an inlet in which the pipe is inserted.

Abstract: Clamp-connection hose (1) for a fluid feed circuit inside the engine compartment of a motor vehicule, comprising a side wall (2) suited to convey said fluid and an end portion (4) of the side wall (2) having an axis (A).

Abstract: An apparatus and method for connecting copper tubes are developed to facilitate welding operation in the refrigerating device. The new apparatus will reduce the poor welding rate so that it will effectively prevent clogging of the copper tubes and leaking the refrigerant. It also has merit to easily determine a suitable heating time while the copper tubes are welding. Thus, the rate of poor welding is reduced, as well as a method for connecting copper tubes by using the tube connecting apparatus.

Abstract: An apparatus for coupling and sealing tubes, comprising a flexible duct having a first and second end portions, each portion having an outwardly extending seal portion connected to a flat portion, which in turn is connected to an angled portion which connects to a flat portion having expanded diameter. The apparatus also comprises a sealing assembly comprising a split ring, a compression ring and an end cap subassembly which fits over the compression and split rings. The end cap subassembly comprises a pair of half-rings which are hinged together at one end and latched together using a closure mechanism at the other end. The split ring is mounted over the duct end seal after a tube with a bead is inserted inside the duct. A compression ring is fit over the split ring and the end cap subassembly is latched in place over the compression and split rings, thereby placing the duct seal portion under compressive pressure against the tube and maintaining it in place in a sealed relationship.

Abstract: A hose with a joint fitting for conveying a carbon dioxide refrigerant has a hose body and a joint fitting. The joint fitting is provided with an insert pipe inserted in an end portion of the hose body, and a socket fitting including a sleeve and a radially inwardly directed collar portion on an axial end of the sleeve. An axial blocking layer blocking an axial leakage path of the refrigerant is provided between an outer surface of the insert pipe and an inner surface of the hose body, and a radial blocking layer blocking a radial leakage path of the refrigerant is provided between an inner surface of the collar portion and an end surface of the hose body.

Abstract: A pipe coupling (11) comprises a tubular casing (12) and a sealing gasket (13), which fit over the ends of the pipes to be coupled. The casing (12) is formed from a strip of rolled steel into a cylindrical shape, with a longitudinal gap (14). The free ends of the strip, which forms the casing, are bent outwardly to form radially projecting flange (15) along opposite edges of the longitudinal gap (14). The outer ends of the flanges (15) are bent back at right angles to form stiffening flanges (16) along the longitudinal outer edges of the flanges (15). A bridging member (18) fits inside the casing so as to span the longitudinal gap. Tensioning screw bolts (25) pass through reinforcing plate's (20) and the flange (15). A hexagonal nut (34) is threaded onto the end of each screw bolt. The nuts fit into the channel but are prevented from turning. The heads (35) of the bolts have a hexagonal recess to take an Allen key so that they can be tightened to clamp the coupling around the pipe ends.

Abstract: An exhaust pipe connecting device includes a seal member, mounted on an end portion of a first exhaust pipe; a coupling member, mounted on an end portion of a second exhaust pipe; and a spring member, provided between the first exhaust pipe and the second exhaust pipe, that presses the seal member toward the coupling member. The first exhaust pipe and the second exhaust pipe are rotatably connected to each other while the coupling member contacts the seal member. The spring member has nonlinear spring characteristics such that a spring constant in a high load region in the operation range of the spring member is larger than a spring constant in a low load region in the operation range of the spring member.

Abstract: A tubular coupling system and method; the system and method in at least certain aspects, using a coupling member with an interior protective ring that has at least one inner energizing member which, upon compression, forces the body of the coupling member against an interior wall of the coupling thereby inhibiting corrosive material from contacting the coupling's interior wall or, in the event some corrosive material does enter this area, holding the interior protective ring against the coupling's interior wall so that the corrosive material remains in and does not exit this area, thus inhibiting or preventing a continuous flow of corrosive material.

Abstract: An instantaneous connection device includes a tubular body, a tight element used to hold the end of a line in the body and includes an elastically deformable annular sealing element and a holding element that are arranged to receive the end of the line, a cam member for moving the holding element from a free state into a state wherein it grips the end of the line when it is axially displaced in the tubular body from a first position to a second position, and an elastic member for bringing the holding element back towards its second position. The sealing element is mounted between a radial shoulder of the body and a radial face of the holding element. The radial shoulder and the radial face are provided with reciprocal reliefs for laterally coming into contact with the annular sealing element.

Abstract: A restrained sleeve coupling assembly for interconnecting pipe sections includes a generally cylindrical sleeve body, a generally cylindrical adaptor body and opposed end rings which are sleeved over the respective pipe sections to be joined. The generally cylindrical sleeve body has opposed gasket engaging surfaces adjacent opposite ends of the sleeve body for receiving fluid sealing gaskets forcibly engaged with the sleeve body, the adaptor body and one of the opposed end rings. The adaptor body includes a gasket engaging surface for receiving a fluid sealing gasket forcibly engaged with the adaptor body and the other of the opposed end rings. The end rings include flanges for engagement with elongated tension bolt assemblies to secure the sleeve body, the adaptor body, the gaskets and the end rings in assembly with each other.

Abstract: A diode assembly comprises a diode, an electrical lead extending from the diode and a pre-fabricated connector placing the lead of the diode in electrical communication with another electrical component or an electrical circuit, such as a resistor. Preferably, the pre-fabricated connector comprises a tubular sleeve. In use, the leads are placed into openings at ends of the sleeve and the sleeve is preferably crimped so that it mechanically engages the leads. In one embodiment, the connector forms a conductive path between the leads or places the leads in direct contact.

Abstract: An apparatus for joining the ends of a pair of ribbed ducts together has a collar with an interior suitable for receiving the ends of the pair of ducts therein, a first coupler element translatably secured adjacent a first end of the collar, a compressible seal disposed between a surface of the first coupler element and the first end of the collar, a second coupler element secured adjacent a second end of the collar, and a second seal disposed between a surface of the second coupler element and the second end of the collar. The coupler elements are translatable so as to compress the seal such that a surface of the seal will bear against a respective rib of the pair of ducts.

Abstract: A union coupler assembly for coolant lines comprising a coupler body, a first coolant line end portion, and a second coolant line end portion. The coupler body has a passageway extending between first and second ends, two tapered annular grooves, a snap ring disposed within each tapered annular groove, and a plurality of o-rings seated in corresponding annular grooves. The coolant line end portions are fabricated from metal and have tapered ends and grooves formed in their outer surfaces. The coolant line end portions are movable between an engaged position, wherein the snap rings engage the grooves in the coolant line end portions, and a disengaged position, wherein the snap rings do not engage the grooves in the coolant line end portions.

Abstract: An apparatus for joining ends of a pair of ducts together in end-to-end relationship has a collar with a first end portion and a second end portion, a first coupler element translatably secured to an exterior of the collar for moving the first end portion between first and second positions, and a second coupler element translatably secured to the exterior of the collar so as to move the second end portion between first and second positions. The end portions have a plurality of fingers that are movable so as to be free of the surfaces of the duct when in the first position and which contact a rib of the duct when in the second position. The collar and the coupler elements form a liquid-tight seal over the respective ends of the pair of ducts.

Abstract: A tube coupling for connection to a conduit through which a cable may pass includes a coupling body having an open ended throughway to receive an end of the conduit and a tube locking device in the open end of the throughway for locking the conduit in the coupling body. The throughway has a reduced diameter section with an annular step at an end of the section facing towards the open end of the throughway to receive the end of the conduit inserted into the throughway. An annular flexible sealing member is disposed adjacent the step to be forced by an end of a tube inserted into the throughway into the reduced diameter section of the throughway. Compression of the annular flexible seal forces the seal into sealing engagement with a cable extending along the throughway to provide a seal between the coupling body and cable.

Abstract: A serviceable exhaust aftertreatment device and configured cylindrical bodies for coupling include a raised annular rib or bead structure providing low profile mounting and ease of assembly.

Abstract: A watering system for a poultry house comprises a watering line which is suspended from a stabilizing bar by means of a clip. The watering line is comprised of a plurality of pipe segments connected together by a coupling mechanism. The coupling mechanism includes a keying element or portion which is formed in the pipe segment at a predetermined location relative to the drinker opening in the pipe segment. The coupling mechanism thus rotationally fixes adjacent pipe segments relative to each other such that the drinker openings of the pipes segments in the watering line are rotationally aligned and fixed relative to each other. The clip includes a boot which engages a projection on the pipe segment (preferably the drinker saddle) to key the pipe segments relative to the stabilizing bar.

Abstract: A coupling (13) is used for a fuel cartridge (2) outlet nozzle (1) designed to supply a compressed gas mounting device with compressed gas and an intake nozzle (3) on the device's intake system (4). The coupling is a single piece formed to ensure a seal and maintain it between the two nozzles (3,1) of the cartridge (2) and the intake system (4).

Abstract: A coupling for attachment to the end portion of a pipe includes jaw members adapted to slide along an inner end taper in the coupling body so that linear movement of the jaw members toward the end of the inner end taper adjacent an end of the coupling body causes movement of the jaw members radially inwardly of the coupling body against the end portion of the pipe when received in the coupling body. The coupling may include a bell type gasket to function as a spring and the spring action of the gasket may be augmented by installing a springy crib ring around the gasket inside the coupling body.

Abstract: A pipe coupling for joining adjacent ends of first and second pipe sections. The coupling includes a generally cylindrical sleeve having first and second sides. The sleeve is formed as a sheet which is rolled to form the sleeve, wherein the first side of the sleeve defines a substantially continuous annular corrugation to cooperatively engage an end of a first pipe section. The connection of the pipe coupling to the first pipe section end occurs at a factory. The second side of the sleeve is in the form of a bell and defines a non-corrugated surface which is adapted to slidably receive an end of the second pipe section in the field, to thereby interconnect the adjacent ends of pipe. Gaskets may be provided to further reduce infiltration or exfiltration at the coupling.

Abstract: A coupling couples pipes of pipe fixes, especially polytetrafluoroethylene pipes. Methods for using the coupling are also provided.

Abstract: A coupling assembly including a coupler body having a generally cylindrical shape and an opening at one end. The coupler body has an inner wall with an inner circumference and an outer wall. An abutment extends from the inner wall of the coupler body. The coupling assembly further includes a conduit having a generally cylindrical shape complementary to the coupler body. A coupler key groove extends along the inner circumference of an inner wall of the coupler body and is shaped like part of a parallelogram. The conduit has a conduit key groove and is generally shaped like part of a parallelogram. When the coupler key groove and the conduit key groove are aligned they form a pathway shaped like a parallelogram with two acute angles. An aperture in the wall of the coupler provides access to the pathway for a locking strip or flexible key. The locking key has a cross-section, which is a complementary shaped parallelogram. A sealing groove is also provided along the inner wall of the coupler to hold an O-ring.

Abstract: A sealing system adapted for placement into an exterior groove of a structure. The sealing system includes a seal ring having a generally ‘L’-shaped cross-section. The sealing system further includes a canted-coil spring. The seal ring includes an inner surface, an outer surface and two side surfaces. The seal ring's inner surface features a groove that increases the ring's flexibility. The seal ring's outer surface protrudes outwardly until it is pushed inwardly through contact with an inner surface of an external structure. As the outer surface moves inwardly, it causes a compression of the spring while a part of the seal ring flexes and bends about the seal ring's groove. At the same time, the outer surface becomes reoriented in a manner that cause its shape to change to a flatter configuration that is more complementary to the inner surface of the internal structure.

Abstract: The snap connection for sealed and releasable connection of a first tube end with a second tube end, with spring arms, with a first outer stop projection on the first tube end, with a first elastically deformable ring connected with the spring arms, and with two first inner stop cams on the first ring cooperating with the first outer stop projection, is characterized by a second outer stop projection on the second tube end, a second elastically deformable ring connected with the spring arms with distance from the first ring, and by two, second inner stop cams on the second ring cooperating with the second outer stop projection. Both rings with their stop cams, connected to one another via the spring arms, form a double-connection element separable by and on both tube ends, which can be made from a plastic injection molding part.

Abstract: A method of manufacturing a threaded joint for oil well pipe having a pin part with a male thread, a box part with a female thread, metal seal parts provided on the pin part and the box part, respectively, and torque shoulder parts provided at the tip of the pin part and at the portion of the box part coming in contact with the tip of the pin part, respectively, comprising the step of providing a design procedure for determining the dimensions of each part, whereby an highly strong threaded joint showing an excellent leak resistance to internal and external pressures can be designed and manufactured.

Abstract: A pipe formed from a concrete cylinder has an end ring with a ferrule which can be snuggly mounted on one end of the pipe and a skirt axially adjacent to the ferrule for receiving a mail endpiece of another pipe. The ferrule is expanded as it is mounted on the cylinder and exerts a compressive force against the outer peripheral face of the cylinder for forming a secure seal. A rib may be disposed on an inner annular surface of the ferrule and an adhesive may be applied for enhancing the seal between the cylinder and the ferrule.

Abstract: A tubular connection 7 is provided for connecting an upper tubular member 10 with a lower tubular member 12. A radially movable latch body 20 is positioned outward of the tubular members. Outer load flanks 25 on the latch body are slidably engageable with inner load flanks 24 on the tubular members. A radially projecting member 32 and a corresponding guide recess 34 are provided for guiding the latch body with respect to one of the tubular members. A safety actuator 30 and corresponding mating surface 38 may also be provided for urging the latch body outward.

Abstract: An electrofusion joint assembly includes a meltable member, such as a pipe or fitting, and a heating element secured to the pipe or fitting. The pipe or fitting may be tapered to facilitate receiving another pipe to form an electrofusion weld joint. Fasteners are used to secure the heating element and extend through a meltable zone and into a non-melt zone. Power supplied to the pipe melts the pipe proximal the heating element.

Abstract: The device provides a low cost, easy to use and cost-effective way to repair or connect pipe ends. The pipe coupling includes an elongated housing comprising a first end and a second end. The housing defines an elongated bore therein. A stop is located on an inner diameter of the housing. The stop located between the first end and the second ends of the housing, wherein a distance from the stop to one of the first and second ends is at least two times a distance from the stop to the other of the first and second end of the housing. A first cylindrical bore extends from the first end to the stop and a second cylindrical bore extending from the second end to the stop, wherein an angle between the first cylindrical bore and the second cylindrical bore is about 15 degrees to about 165 degrees.

Abstract: A flexible piping connector 10 includes a flexible elastomeric tubular member 12, with a central annular groove formed around the circumference of the member. Two rigid plastics tubular members 20, 22 engage with the flexible tubular member 12, while inner annular members 28 retain the flexible tubular member 12 in co-operation with the rigid members 20, 22. The rigid members 20, 22 may be connected to sections of piping, while the flexible member 12 allows the assembly to be flexed through a restricted range of angles to allow for construction of piping lengths at non-standard angles, while the connector retains a smooth inner bore.

Abstract: The apparatus for joining and sealing conduits, includes edge trim, a sleeve, and a retaining element. The edge trim is shaped to mount upon and engage an end of a conduit. The sleeve extends between the conduits and at least partially surrounds the edge trim. The sleeve may be made of compressible material, such that when the retaining element surrounds a portion of the sleeve and the edge trim, the retaining element generally compresses the portion of the sleeve portion underlying the retaining element and displaces the sleeve material to expand on either side of the retaining element and limit movement of the retaining element. The method of joining and sealing conduits includes mounting the edge trim and a retaining element upon an end of a conduit, extending a sleeve between the conduits, and sliding the retaining element over the sleeve toward the end of the conduit.

Abstract: A coupling used to transfer fluid between two conduits includes a seal arrangement that permits an inner sleeve to move axially and angularly without fluid leaking from the coupling. The coupling also includes a pair of coupling members coupled to the inner sleeve, around each end of the inner sleeve. The inner sleeve includes tapered ends sized to receive a seal including a spherical lip. Each coupling member includes a tapered end that compresses each seal during assembly of the coupling. The seal spherical lips maintain sealable contact between the inner sleeve and the coupling first and second members.

Abstract: A flushing system for air conditioning drainage pipes including a pipe assembly, a valve for selectively blocking the pass of the upstream drain line and a connection for a pressurized fluid supply. Each of the pipe assembly ends has a slidable tubular member cooperatively larger in diameter than said pipe assembly and drain line to snugly receive the ends of the pipe assembly. The tubular members are slid partially over the drain line ends and the ends of the pipe assembly. An alternate embodiment uses cooperating threads on the ends of the pipe assembly and one of the ends of the slidable tubular members. To flush the system with a fluid (liquid or gas), a user closes the valve assembly by rotating the ball valve member and applies the pressurized fluid to flush the system. Also, O-rings are used to enhance the sealing engagement in yet another embodiment.

Abstract: A coupler for a low pressure piping system has a hollow metal tube terminating in a pair of end portions defining open ends for slidably receiving and joining together sections of other metal tubes in a substantially air tight relationship. Slots are formed in at least one of the end portions to aid in the crimping of the hollow metal tube by an annular clamp. A radial flange is formed adjacent the end portion and receives an annular seal therein. A stop for limiting the insertion of a tube section into the end of the hollow metal tube is formed on the inside of the coupler adjacent the radial flange opposite the slots. The annular clamp encircles the slots and is tightened to clamp the end portions to form metal to metal contact between the metal tubes and to form a seal between the annular seal and both metal tubes.

Abstract: A butt-wrap joint includes a plurality of wraps 5201-520n of material wetted with a thermosetting resin and wrapped circumferentially about two abutting pipe ends 101, 201. The first wrap is disposed relative to the respective pipes and the second through n-th wrap is deposed successively outwardly, relative of the respective preceding wrap. The wraps are covered by a chopped strand mat 530 wetted with the thermosetting resin.

Abstract: In a subassembly electrical isolation connector for interconnecting sections of a tubular drill rod, the subassembly having an electrically insulated connector for and between spaced-apart connector sections to transmit drilling forces therethrough, the use of a sealing membrane for sealing an insulated spacing in the electrically insulated connector to prevent ingress of pressurized drilling mud into the connector and shorting out said spaced-apart sections of the connector, the sealing membrane overlapping said connector sections as a continuous sleeve and having at least its sleeve ends sealed to respective portions of the connector sections to thereby activate the sealing membrane.

Abstract: This invention is a new and improved PVC conduit coupling (FIG. 1) designed specifically for the use of connecting PVC conduits together under roadways, asphalt, concrete and underground. A long, cylindrical, sleeve-type embodiment that has a greater Glue Surface Area (1) and a stop ring (4). This new invention utilizes the greater Glue Surface Area (1) that keeps conduits from pulling apart, giving the installer and the owner assurance of conduit continuity.

Abstract: The invention relates to a pipe fitting, in particular for connecting waste pipes, especially pipes consisting of glass fiber-reinforced plastic.