Abstract: Described as a filler-tank coupling, exhibiting a) a coupling plug (S), b) in which is arranged an axially movable conduit (R), c) a coupling socket (D) corresponding to the coupling plug (S), d) wherein the conduit (R) extends beyond the parting plane (T) into the coupling socket (D) in the coupled state, so that a media opening (9) provided in the front area of the conduit (R) becomes aligned with the inlet opening of a media line (L) arranged in the coupling socket (D), and e) means for joining the coupling plug (S) and coupling socket (D). According to the invention f) the conduit (R) has an insulated design (1), g) a first insulating body (2) is arranged at the front end of the conduit (R), h) the coupling socket (D) exhibits a second insulating body (6) that can move in an axial direction and corresponds to the first insulating body (2), and i) the conduit (R), first insulating body (2) and second insulating body (6) are sealed gastight (3, 4, 7).

Abstract: The invention provides a connector, comprising a male member and a female member, one of said members is stationary whilst the other member is retrievable. The connector is distinctive in that the interface between the male and female members comprises a facing surface of a ceramic sleeve, ceramic insert or ceramic member, such that the male and female members are galvanically isolated.

Abstract: It is the object of the present invention a thermoplastic element for the protection against corrosion in the thermofused splicing of a thermoplastic tube to a thermoplastic connection, which element has the shape of a fully thermoplastic tubular sleeve, able to be introduced into a socket mouth formed by the expansion of the tube end, said splice element bearing only one internal diameter and two external diameters which define a cylindrical external portion of larger diameter and a tubular projection which diameter is smaller than the former, and which is introduced into the thermoplastic tube, a lateral wall of the external portion defining a front butt of said thermoplastic element against the end of the thermoplastic tube. Said splicing element also exhibits an auxiliary ring which operates as a reference point for the assembly thereof.

Abstract: An elastomeric lip seal joint for sealing the inner liner and grout layers when joining two sections of multiwall pipe having an outer steel casing and an inner liner. The ring-shaped lip seal joint comprises a gasket with insulating material completely covering its outer surface. The insulating material is capable of shielding the gasket from the heat produced when the sections of outer steel casing are welded together. The use of the lip seal joint simplifies the process of joining sections of multiwall pipe. Each side of the lip seal joint is inserted into one of the annular voids at each end of the pipe, thereby sealing the inner liner and grout. A single circumferential weld then joins the outer steel casing. The gasket remains intact during the welding process due to the presence of the insulating material.

Abstract: A joint between two metal tubes may be formed by creating a cutout on each of the tubes, each cutout having a pair of channels sized according to a wall thickness of a tube to be received, and then pressing the tubes together. Teeth are formed in the channels to engage the wall of the opposite tube when the tubes are pressed together to prevent the joint from separating once created. Optionally a mechanical fastener may be used to further strengthen the joint structure.

Abstract: Means for fire protection of pipe joints and valves in a pipeline, comprising two socket halves being situated tightly against each other and against the pipe line and surrounding the joint, valve or such, where the socket halves being made by a perforated plate (6) in stainless steel, by fire isolation (7, 8) of heat expanding epoxy material on the inside, on the outside or on both sides, and that one of the edges of the socket halves being situated against each other having an internal cover plate (9) with fire isolation (8) which covers the joint between the two halves and prevent penetration of hot gasses into the internal of the socket halves.

Abstract: An electrical isolation connector subassembly for interconnecting adjacent tubular drill rods of a drilling system used in drilling bore holes in earth formations, the connector comprising an electrically insulative sleeve being sandwiched between two electrically isolated subassembly components, the sleeve providing an exterior gap between the edges of the spaced apart electrically isolated components, the exterior gap having a width of less than 50 cm.

Abstract: A dielectric joint for pipes, particularly for underground pipes, comprises a male head of a first pipe which enters a mating and mutually opposite cup-shaped female head of a second pipe; a sealing insulating means is interposed between the pipes and is externally extended on the first pipe by an extent which reaches beyond the inlet edge of the female head and internally forms a tight-fitting cladding of the first and second pipes for a longitudinal extent which is at least equal to the overall length of the joint.

Abstract: A coupling has a plastic socket part having a connection nipple fitted into an end of one of two tubes to be joined and having an outer surface engaging the lining of the one tube, a socket having an inner surface, and a conductive metallic lining layer on and extending between the inner and outer surface. A plastic plug part has a respective connection nipple fitted into an end of the other of the tubes and has an outer surface engaging the lining of the other tube, a plug having an outer surface and fittable in the socket, and a conductive metallic lining layer on and extending between the outer surfaces of the plug part. An electrically conductive seal ring is fixed in the socket and engages the outer surface of the plug part. The parts are made of polyoxymethylene and/or a fiber-reinforced polyamide.

Abstract: The invention relates to a hose fitting, more specifically, for a brake arrangement in a motor vehicle, for connecting, in a compression-proof manner, a multi-layer hose to a metallic end piece. At least part of one free end of the end piece engages with the inside of the hose and features at least one bulge, with a metallic pressed sleeve encompassing the hose, overlapping the bulge and also featuring, lateral to the bulge, respective first pressed sections. The crux of the invention is based on the fact that elastic and electrically nonconducting surface layers are arranged on the hose and end piece, upon which are arranged, in each case, a second pressed section in a liquid-tight manner. The invention is associated with the advantage that a hose fitting is sealed with respect to electrolyte penetration from the outside, and that, moreover, local cell formation, with resultant corrosion of the hose fitting, is prevented.

Abstract: A connector assembly is provided for connecting two pipes of dissimilar material. In particular, an assembly is provided for connecting a first end portion of a first pipe to a second end portion of a second pipe formed as a bell housing having a larger inside diameter than an outside diameter of the first end portion and which second end portion overlaps the first end portion. The connector assembly includes a mandrill for attachment to the first end portion, which is formed as a flange extending radially from an outside circumference of the first end portion to face at least a portion of an end face of the bell housing, and an axial tubular extension extending from the flange so as to, upon assembly, reach a point approximately equal to an axial end point of the first pipe, and reside within the second end portion creating an annular space therebetween.

Abstract: A low corrosion resistant pipe 1 is jointed with a high corrosion resistant pipe 2 directly or via a coupling 3. An insulating ceramic film having a thickness of 0.4 .mu.m and a resistivity of 10.sup.8 .OMEGA. cm or more is formed on the outer and inner surfaces of the pipes 1 and 2 at a length L of 60 mm or more from the end of the pipe and on the surface which forms a space when the pipes 1 and 2 are jointed at a coverage ratio of 90% or more to less than 100%.

Abstract: In prior art coolant couplings, multiple parts are provided for guiding and supporting a connector plug in a connector sleeve and for sealing off the connection between the plug and the sleeve. According to the invention, the support function, sealing function and centering function in a connection between a plug and a sleeve of a coolant coupling are integrated in a single component in the form of an annular combination element.

Abstract: A flangeless pipe joint including lined pipes with the end section of the outer pipe spaced radially outwardly from the liner and insulating material filling the space between the end sections of pipe and liners. The ends of the liners are sealed to each other and the outer pipe ends are joined by an outer sleeve.

Abstract: Disclosed is a hose unit including harnesses which can be easily attached to and detached from the other portion of the unit at the time of fastening thereof to the body of a motor vehicle or the like and which hardly undergoes stress even at the time of vibration or torsion of the hose of the unit. The hose unit includes the hose to which respective end metal members are secured. Holders are removably fastened to these members. One harness extends along the hose and is fastened to the holders and another harness is connected to the former through the holders and extends therefrom. Also disclosed is a special hose clamp.

Abstract: A joint for end-to-end coupling of two tubular elements includes tapered coupling surfaces on the tubular elements which are bonded together by adhesive. The coupling surfaces comprise a plurality of cylindrical sections of gradually increasing and decreasing diameters, respectively. A plurality of axially spaced-apart centering rings are interposed between the tubular elements to provide proper positioning thereof and to facilitate injection of bonding material between the coupling surfaces. A series of axially spaced-apart conducting rings forming part of an antenna surround one of the tubular elements and are insulated therefrom by a layer of bonding material. The conducting rings are separated from each other by toric joints and shims. Openings are provided in one of the tubular elements for injecting the bonding material under pressurized conditions, and an insulating sheath is bonded to inner peripheries of the tubular elements.

Abstract: An electrically insulated pipeline joint for use in fluid or gas pipelines is disclosed. Such a joint is used to electrically insulate one section of a pipeline from an adjoining section pipeline. The joint is further designed to preclude physical failure therein and also to preclude leaks from forming therein, in the case of mechanical failure.

Abstract: The joint comprises a first end portion to be coupled and shaped like a sort of cup, in which a second portion, shaped like a flange, and to be joined to the first one, is insertable, wherein the second portion is internally occupied for a section by a precision seating recess, for a cylindrical element of highly insulating material, and flush to the inner wall of the conduit. The end of the cylindrical element, facing towards the bottom of the cup, has a radially directed annular projection for the constant separation of the flange from the bottom of the cup, the projection axially and sealingly engaging with an annular gasket, and being provided with a collar for the blocking therein.

Abstract: The joint comprises a first end portion to be coupled and shaped like a sort of cup, in which a second portion, shaped like a flange, and to be joined to the first one, is insertable, wherein the second portion is internally occupied for a section by a precision seating recess, for a cylindrical element of highly insulating material, and flush to the inner wall of the conduit. The end of the cylindrical element, facing towards the bottom of the cup, has a radially directed annular projection for the constant separation of the flange from the bottom of the cup, the projection axially and sealingly engaging with an annular gasket, and being provided with a collar for the blocking therein.

Abstract: An electrically insulated joint for metal piping having two receiving elements each having an opposing surface and defining a passage therebetween, at least one of the opposing surfaces having a non-recessed portion and a recessed portion that has an outer diameter smaller than an outer diameter of the non-recessed portion; an insulating ring having an outer diameter and being at least partially disposed against the recessed portion; an elastic sealing ring; and at least one leg disposed against the recessed portion to make the insulating ring impermeable to gas to thereby prevent high pressure build-up. The insulating ring is composed of a metal ring and one leg extending radially from the metal ring so that the insulating ring has an outermost diameter, and insulation material of high compression strength lining the insulated ring entirely. The elastic sealing ring has an inner diameter in a non-compressed state greater than the outermost diameter of the insulating ring.

Abstract: An electrically insulated joint is provided between two fluid conduits, one of which is connected to a fuel cell stack, and the other of which is connected to a source of the fluid being circulated through the stack. The two conduits are both preferably formed from stainless steel, one of the conduits being larger than the other. An intermediate dielectric insulating sleeve is fitted onto the outside of the smaller conduit and extends beyond a free end thereof. The free end of the smaller conduit and a portion of the dielectric sleeve are expanded to the size of the larger conduit's bore and telescoped into the larger conduit's bore. The free end of the larger conduit is then shrunk down onto the outside surface of the unexpanded part of the dielectric sleeve and the smaller conduit. The resultant point has terminal cylindrical portions and an intermediate tapered portion.

Abstract: An insulating coupling for drill collars and a method of manufacture thereof are presented wherein the coupling consists of an electrically insulating ceramic coating applied in thickness from 0.002 to 0.006 inch to the threads of the coupling by a detonation gun process and sealed with an epoxy sealer to reduce porosity.

Abstract: An insulating pipe joint is disclosed. The joint comprises a first tubular member, a second tubular member comprising a cylinder having the same inside diameter as that of the first tubular member and an annular metal stopper at one end of said cylinder, and an insulator made of a glass/mica composition and a cured organic, solventless resin. The annular metal stopper has an inside diameter larger than the outside diameter of the first tubular member, and the annular metal stopper nests the first tubular member with a space left between them. The insulator fills the space to hold the first and second tubular members in position and provide air- and water-tightness, and secures the insulation creeping distance between each tubular member.

Abstract: A separable electrical isolator for coupling two pieces of conductive tubing carrying high pressure cryogenic gas includes a gas-impervious dielectric spacer with a bore in which the pieces of tubing are sealed axially-aligned in fluid communication with an electrically-nonconductive gap between them. A pair of complementary coupling members are rigidly attached to the pieces of tubing to define outwardly-extending annular flanges that are each sealed about the periphery of a corresponding one of the pieces in a position slightly set back from an end of the piece. Each flange has an annular rib protruding from it toward the end of the piece. The coupling members are separably and nonconductively interconnected with the annular ribs applying compressive force to the spacer to thereby effect the seal.

Abstract: A separable electrical isolator for coupling two pieces of conductive tubing carrying high pressure cryogenic gas includes a gas-impervious dielectric spacer with a pair of opposing surfaces and a bore extending therebetween in which the pieces of tubing are sealed axially-aligned in fluid communication with an electrically-nonconductive gap between them. A pair of complementary coupling members are rigidly attached to the pieces of tubing to define outwardly-extending annular surfaces that are each sealed about the periphery of a corresponding piece in a position slightly set back from and facing an end of the piece. The coupling members are separably and nonconductively interconnected with the annular surfaces facing the spacer surfaces and O-ring seals in between to apply compressive force to the spacer and seals and thereby effect the seal.

Abstract: A swivelable quick connect assembly for use with tubular conduits is disclosed as comprising a housing having an axial bore for receiving one end of the conduit, an elastomeric ring-like seal is disposed in the bore for providing a fluidtight seal between confronting portions of the conduit and the housing, an annular bushing is disposed in the bore for positioning the seal and for guiding the one end of the conduit into nesting relationship with the bore, and a retainer is detachably secured to the housing and is cooperable with an annular projection on the conduit for securing the conduit in its operative position within the bore, the retainer having resilient deformable portions which are adapted to snap over the locking wall upon insertion of the conduit into the housing bore.

Abstract: An insulated joint and a method for producing the joint in which first and second tubular members are joined together with an insulating member disposed in the gap therebetween. The first tubular member includes a cylindrical body with an outer circumferential portion having a larger internal diameter than the external diameter of the cylindrical body while the second tubular member has the same internal and external diameters as those of the cylindrical body of the first tubular member. At least a portion of the second tubular member is fitted in the outer circumferential portion of the first tubular member with a gap therebetween. An insulating member is disposed in the gap to hermetically couple the first and second tubular members while insulating them from each other.

Abstract: An insulated pipe joint and a method for producing the joint in which first and second tubular portions are joined through an insulating member disposed in a gap between the first and second tubular members. The first tubular member has a flange portion at one end thereof while the second tubular member has a cap portion which accommodates the flange portion of the first tubular member with the gap being formed between the cap and flange portions. The insulating member disposed in the gap hermetically couples the first and second tubular members while electrically insulating them from one another.

Abstract: The invention pertains to a vibration and sound isolator for pressurized conduit systems, such as refrigeration systems, capable of absorbing torsional and bending vibrations without fluid leakage. An annular cylinder casing defines a chamber receiving a tubular piston member having a head located within the chamber. The chamber is axially defined by a pressure face wall at one end, and a reaction wall at the other end. An annular elastomeric seal bonded to the piston head and reaction wall is compressed by fluid pressure acting upon the pressure face wall and piston head increasing the elastomer's resistance to fluid permeability. The axial dimension of elastomer intermediate the piston head and reaction wall permits torsional deflection between the cylinder and piston members about an axis coincident with fluid connection means defined upon the members, and radial clearance between the piston stem and elastomer permits related angular deflection of the members while maintaining a sealed relationship.

Abstract: The invention is directed to a connector for pipe joints in which inner and outer tubular connecting members are telescopically engaged. The connecting members are secured to one another by a jointing compound which is cast in the tubular passage between the members. A preformed element, normally in the form of an O-ring is fitted at the inner end of the tubular passage to provide means for locating the members relative to each other prior to delivery of the jointing compound. A similar preformed element may be located at the outer end of the tubular passage after delivery of the jointing compound to further stabilize the joint. The jointing compound and the preformed element or elements are each electrically insulating whereby one member is electrically isolated from the other in the connector.