Abstract: An improved seal at the junction of a pipe or tube to an opening formed in a flat wall or in the wall of a cylindrical or rounded container, including axially tapered exterior and interior peripheral surfaces. The tapers of such surfaces being different one from the other and being of such a degree that, when the seal is inserted into the opening in the receiving member and the pipe is inserted therethrough, the material from which such seal is fabricated is forced to bulge around the periphery of the opening, thereby securing the pipe in the opening and perfecting the seal therebetween.

Abstract: A deformable sealing member is disposed between two surfaces such that a space is provided to at least one side of such sealing member. A smaller space may be provided to a second side of the sealing member. The sealing member is conformed to contact both surfaces. A pressure coming from the direction of the greater space between the two surfaces will cause the sealing member to deform into greater compliance with the two surfaces. However, should pressure reverse and approach the seal from the opposite direction the seal will distort into the area of greater space thereby causing the seal to break contact with one of the surfaces and for such pressure to vent past the seal.

Abstract: A tubular connection comprising a pin end and a box end of adjacent joints having a conical metal-to-metal seal located with respect to the pin end forward thread set and its nose, the improvement of a circumferential groove in the pin end forward of the metal-to-metal seal which carries an elastomeric sealing ring radially extending beyond the limits of the groove. The metal-to-metal makeup of the connection causes by conical deformation a slight wedge shape opening to form forward of the metal-to-metal seal. The elastomeric material extrudes to fill this wedge shape opening to thereby form a compound seal forward of the metal-to-metal seal.

Abstract: A deformable sealing member is disposed between two surfaces such that a space is provided to at least one side of such sealing member. A smaller space may be provided to a second side of the sealing member. The sealing member is conformed to contact both surfaces. A pressure coming from the direction of the greater space between the two surfaces will cause the sealing member to deform into greater compliance with the two surfaces. However, should pressure reverse and approach the seal from the opposite direction the seal will distort into the area of greater space thereby causing the seal to break contact with one of the surfaces and for such pressure to vent past the seal.

Abstract: A pipe end fitting or coupling including an elongated tubular body having a bore at its first end and a counterbore at its second end with the counterbore being formed as a plurality of frusto-conical grooves and with each of the grooves converging toward its second end. A support sleeve is mounted within the bore and extends throughout the counterbore to form an annular chamber. A cylindrical pipe may be fitted into the annular chamber to form respective chambers with each of the grooves. The respective chambers are filled with a hardenable epoxy resin to complete the end fitting connection.

Abstract: A connector for and a method of connecting pipe members for a variety of purposes including (but not limited to) plumbing, hydraulics, pneumatics and medical purposes. Wherein the connector which can be used in conjunction with other fittings, has a connector body with an opening to receive a pipe and a tapered internal bore in the opening to receive a substantially coaxial inner sleeve adapted to engage the surface of the pipe in the connector. After insertion, the pipe is then moved in an opposite direction to the direction of insertion and the inner sleeve is adapted to slide wherein internal bore to wedge into frictional engagement and connection with the outer surface of the pipe and the tapered surface of the internal bore so that when the pipe is sealably engaged within the connector the pipe can be disengaged from the connector by a reverse operation.

Abstract: A plumbing connection is disclosed to connect a supply conduit to a faucet. A supply conduit has a main cylindrical body portion with an expanded, end portion. The supply conduit is received in a valve mounting body having a commensurate throughbore and counterbore which are adapted to respectively engage in slidable contact the cylindrical main body portion of the supply conduit and the expanded end portion of the supply conduit. A resilient seal member with projections having throughbores is received in wedged contact within the expanded end portion of the supply conduit. A valve is removably secured to the valve mounting body and in contact with and in communication with the throughbores of the supply conduit and the seal 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 dual function gasket adapted for insertion into a suitable groove formed in the bell of an associated pipe includes an annular gasket body made of a resilient material. The body terminates radially inwardly in a leading lip and a pressure activated sealing lip spaced rearwardly therefrom. An annular groove is provided in the gasket body and an annular locking ring may be selectively inserted into the groove. The ring is made of a material harder than the gasket body and is inserted into the groove when a high pressure seal is desired. The ring may be removed when only a low pressure seal is desired.

Abstract: A repair coupling is herein disclosed which is particularly suited for use with fiber-reinforced thermosetting resin pipe. The coupling comprises a pair of inner and outer sleeves to be secured on respective end portions of a pair of pipe sections to be coupled, a tubular seal carrier, and a clamp. Each inner sleeve is axially slit and has a tapered external thread. Each outer sleeve has a complementary internal thread. The inner sleeves have internal teeth so that threading of the outer sleeves onto the inner sleeves causes the teeth to grip the respective pipe end to secure the inner and outer sleeves thereto. The seal carrier has opposed seal-carrying sections which fit into the respective pipe ends and form internal fluid seals, and a flange between the seal-carrying sections forming a spacer between the adjacent pipe ends.

Abstract: The invention relates to a device for connecting flanged pipes. For this purpose, a multiple-section clamp is mainly used which includes inwardly protruding flanges engaging beyond the collars of the pipe ends. An annular profiled seal forms an approximately U-shaped hollow profile with the shanks which are formed as sealing lips and which abut against the peripheral surfaces of the collars. The assembly of the profiled seal is difficult. The sealing effect is often impaired by the peripheral surfaces of the collars being no longer sufficiently even and smooth. These drawbacks are removed by the invention such that the profiled seal has an inner profiled section extending between the faces of the collars and that the outer surfaces of the outer profiled section surrounding the peripheral surfaces of the collars are reinforced at a guide ring. Thus, the particular sealing region is disposed between the faces of the collars.

Abstract: A quick connect tube coupling sealingly couples a tube to a body solely by pushing the tube axially into the body. The tube is provided with a reduced diameter end portion and a conical ramp portion and an annular groove. The body has a passage extending therethrough which includes a nominal diameter portion, a counterbore portion, and a threaded end portion. A coupling subassembly is screwed into the threaded end of the passage in the body before the tube is assembled. The coupling subassembly includes a nut having a tube receiving passage and a retainer which holds a snap ring and an elastomeric seal in place prior to and after assembly of the tube.

Abstract: A singly or doubly tapered sleeve for gripping a hose in a hose coupler so that the gripping action on the hose is modified by changes in water pressure in and end pulls on the hose.

Abstract: The invention provides a seal for pipe joint couplings, the present seal comprising a sleeve member receivable over the pipe joint and extending for a relatively short distance along each of the pipes. The seal further comprises an annular pressure chamber formed in the inner wall of the sleeve facing each of the pipes, the outer surface of each pipe acting to define the chamber, each pressure chamber being partially positioned into two sub-chambers by an inwardly extending annular bead formed on the sleeve, the sub-chambers each having packings such as O-rings disposed therein.

Abstract: Combined mould element and sealing ring suitable for sealing off a joint between a socket end and an insert end of two cooperating pipes formed from thermoplastic material and for being used as a portion of a body of a mould for both fabricating the socket end of the one pipe and simultaneously inserting the ring in an internal groove in the socket end produced thereby. The main bulk of the sealing ring is composed of elastically yielding material having within its contour at least one zone composed of relatively non-elastic material capable of rendering the zone stable as regards its shape compared with the remainder of the ring. Conveniently, such zones are formed by stiffening rings permanently connected to the main bulk of the sealing ring.

Abstract: A self-locking pipe coupling for joinder of adjacent end segments of pipe comprises a bell at one of the adjacent ends, a spigot at the other adjacent end and a wedge-shaped seal configured to fit over the spigot and within the bell. The angle of the seal, the coefficient of friction between the seal and the bell, and the coefficient of friction between the seal and the spigot are chosen relative one another selectively in a manner to prevent disassembly of the coupling once it is assembled without destruction of the seal.

Abstract: Sealing apparatus used for sealing the gap between flanges which comprises an O-ring engaged with a circular groove formed in the coupling surface of one of the flanges and two backup rings engaged with the groove and the O-ring, each of the backup rings having an inclined surface to be axially urged by the O-ring whereby the upper backup ring is moved according to the gap to close it.

Abstract: Apparatus for connecting the ends of two pipes comprising; a pair of coupling members, each of which is connected at one end thereof to the end of one of the pipes; one of the coupling members having attached to the other end thereof an annular spherically-shaped enlarged portion having axially forward and rearward sides; the other coupling member having attached to the other end thereof a housing having an internal surface for receiving the spherically-shaped forward side of said enlarged portion in mating engagement therewith, thereby enabling the central axes of the coupling members to be inclined at an angle relative to each other for connecting similarly inclined pipe ends; seal means disposed between the enlarged portion and the housing for providing a fluid seal therebetween; a plurality of cam members supported in circumferentially disposed relation about the housing and movable axially and radially inward towards the internal surface between a retracted position in which the housing freely receives t

Abstract: The specification discloses a sleeve type coupling for providing a limited flexible connection between two sections of pipe, particularly large diameter pipe such as shore dredge pipe. The coupling has an overall length in the range of 11/2 to 2 times the diameter of the pipe sections to be coupled and is of uniform wall thickness tapering uniformly from end to end except for a relatively short section intervening between the opposite end sections. The end sections are tapered in the range of 31/2.degree. to 5.degree. with respect to the longitudinal axis and the section intervening between the end sections is of a length approximately 0.15 to 0.20 times the diameter of the pipe sections to be coupled, and is tapered at an angle to the longitudinal axis substantially larger than that of the end sections.