Abstract: A fluid conveying hose, especially a refrigerant conveying hose, that exhibits improved resistance to permeation of the refrigerant while still affording desirable flexibility, and a fitting for such hose and methods of making the hose and the union between the hose and fitting. Also provided is a coupling assembly for a hose and a service fitting that is a considerably less expensive alternative to existing assemblies equipped with relatively expensive shut-off valves or quick connect/disconnect couplers.

Abstract: The present invention is directed to a coupling for use with sanitary hose, including a hollow female coupler piece and a hollow male coupler piece, wherein the male coupler piece is threadedly connected into the female coupler piece, and wherein a first end of the male coupler piece extends into a first end of the female coupler piece such that opposing surfaces of the first ends are radially spaced, and wherein one of the surfaces of the first ends includes a plurality of raised pad surfaces of a predetermined geometric design.

Abstract: A hose construction, coupling therefor and methods of making the same are provided, the hose construction comprising a tubular hose and a coupling secured to one end of the tubular hose, the inner peripheral surface of the tubular hose comprising an inner corrugated hose made of polymeric material and having inwardly convex projections with recesses therebetween and extending from one end of the tubular hose to the other end thereof, the coupling having an insert disposed in the one end of the tubular hose and being radially outwardly expanded into sealing relation with the inner corrugated hose, the insert having an outer peripheral surface defined by a plurality of outwardly convex projections with recesses therebetween, the projections of the insert being respectively received in the recesses of the inner hose and the projections of the inner hose being respectively received in the recesses of the insert whereby the interior of the tubular hose is substantially sealed to the interior of the coupling.

Abstract: A hose construction, coupling therefor and methods of making the same are provided, the hose construction comprising a tubular hose and a coupling secured to one end of the tubular hose, the coupling having an insert disposed in the one end of the tubular hose and being radially outwardly expanded into sealing relation with an inner corrugated hose of the tubular hose, the insert having an outer peripheral surface defined by a plurality of outwardly directed projections with recesses therebetween, the projections of the insert being respectively received in recesses of the inner hose and projections of the inner hose being respectively received in the recesses of the insert whereby the interior of the tubular hose is substantially sealed to the interior of the coupling, the projections of the insert each having a substantially flat outer surface.

Abstract: An improved gas riser comprises a pipe nipple, casing, adaptor sleeve, tube, and stiffener. The adaptor sleeve features an internal stop which accurately positions an end of the plastic tube before the tube is plastically deformed into grooves in an internal surface of the adaptor sleeve. Each of the first and second ends of the adaptor sleeve can be manufactured in different diameters to fit pipe nipples and casings that are required by different code regulations.

Abstract: A hose construction, coupling therefor and methods of making the same are provided, the hose construction comprising a tubular hose and a coupling secured to one end of the tubular hose, the inner peripheral surface of the tubular hose comprising an inner corrugated hose made of polymeric material and having inwardly convex projections with recesses therebetween and extending from one end of the tubular hose to the other end thereof, the coupling having an insert disposed in the one end of the tubular hose and being radially outwardly expanded into sealing relation with the inner corrugated hose, the insert having an outer peripheral surface defined by a plurality of outwardly convex projections with recesses therebetween, the projections of the insert being respectively received in the recesses of the inner hose and the projections of the inner hose being respectively received in the recesses of the insert whereby the interior of the tubular hose is substantially sealed to the interior of the coupling.

Abstract: Connectable connector fittings for positioning on the terminal ends of flexible conduits include a first member positioned on the exterior surface of the terminal end of a conduit, a second member is positioned on the interior surface of the terminal end of the conduit, and a connector member coupled with either the first or second member. The first and second members are securely affixed by expanding the diameter of the second member outwardly against the first member to achieve a pressure fit whereby to provide a connectable connector fitting on the terminal end of the conduit.

Abstract: A coupling for a flexible soft hose for example for a foam supply duct of a car wash includes a helical spring wrapped around the end of the hose with a spring on the end of the hose inserted into a sleeve member and abutting a shoulder within the sleeve member. A threaded insert member is then engaged through the sleeve member to the inside of the hose thus squeezing the hose outwardly to engage the inside surface of the spring. A swivel coupling can be provided on the male insert member using a replaceable O-ring and clip ring mounting.

Abstract: A hose construction and methods of making the same are provided, the hose construction comprising a tubular hose and a coupling secured to one end of the tubular hose, the inner peripheral surface of the tubular hose comprising an inner corrugated hose made of polymeric material and having inwardly convex projections with recesses therebetween and extending from one end of the tubular hose to the other end thereof, the coupling having an insert disposed in one end of the tubular hose and being radially outwardly expanded into sealing relation with the inner corrugated hose, the insert having an outer peripheral surface defined by a plurality of outwardly convex projections with recesses therebetween, the projections of the insert being respectively received in the recesses of the inner hose and the projections of the inner hose being respectively received in the recesses of the insert whereby the interior of the tubular hose is substantially sealed to the interior of the coupling, the inner peripheral surface

Abstract: A hose coupling wherein a tubular connector has a first portion with an internal annular wall and an internal annular protuberance, and a cylindrical second portion. The protuberance is located between the wall and the second portion, and the first portion has axially extending elastic arms with pallets which can engage an external rib of a pipe when the terminal portion of such pipe is introduced into the first portion. A thin-walled metallic sleeve has a larger-diameter first section with a free end which is receivable in an annular socket of the wall after having passed within and beyond the protuberance upon entering through the open end of the second portion of the connector. At such time, the first section deforms and/or is deformed by the protuberance.

Abstract: A hose connection for high pressure installations and a method for making the same in which a nipple provided with externally projecting beads or ribs of annular configuration is initially internally expanded to substantially the inner diameter of the hose by an expanding tool while the hose is constrained against radially outward movement by a cylindrical sleeve-like member having a smooth internal surface. The sleeve-like member secured to the nipple is subjected to at least one subsequently realized inwardly extending deformation which may be made by a crimping tool; in case of annular rolled-in grooves, the latter are preferably so arranged that the deepest point of the annular grooves are located between peaks of adjacent beads or ribs.

Abstract: A hose construction, coupling therefor and methods of making the same are provided, the hose construction comprising a tubular hose and a coupling secured to one end of the tubular hose, the inner peripheral surface of the tubular hose comprising an inner corrugated hose made of polymeric material and having inwardly convex projections with recesses therebetween and extending from one end of the tubular hose to the other end thereof, the coupling having an insert disposed in the one end of the tubular hose and being radially outwardly expanded into sealing relation with the inner corrugated hose, the insert having an outer peripheral surface defined by a plurality of outwardly convex projections with recesses therebetween, the projections of the insert being respectively received in the recesses of the inner hose and the projections of the inner hose being respectively received in the recesses of the insert whereby the interior of the tubular hose is substantially sealed to the interior of the coupling.

Abstract: A high pressure coupling for hose-like objects in which the nipple structure includes a main portion, a connecting nipple portion extending from the main portion in one direction and a nipple portion extending from the main portion in the opposite direction. A sleeve-like member made from tubular stock is adapted to be securely connected to the nipple structure by crimping, flanging or the like. The nipple portion includes outwardly projecting, rounded-off ribs cooperating with rounded-off grooves in the sleeve-like member so that the hose inserted between the nipple portion and the sleeve-like member is held securely in position after the nipple portion is internally expanded with subsequent reduction of the cylindrical surface of the sleeve-like member. Both the nipple structure as well as the sleeve-like member are made from appropriate stock machined accurately to the required dimensions.

Abstract: A hose construction, coupling therefor and methods of making the same are provided, the hose construction comprising a tubular hose and a coupling secured to one end of the tubular hose, the inner peripheral surface of the tubular hose comprising an inner corrugated hose made of polymeric material and having inwardly convex projections with recesses therebetween and extending from one end of the tubular hose to the other end thereof, the coupling having an insert disposed in the one end of the tubular hose and being radially outwardly expanded into sealing relation with the inner corrugated hose, the insert having an outer peripheral surface defined by a plurality of outwardly convex projections with recesses therebetween, the projections of the insert being respectively received in the recesses of the inner hose and the projections of the inner hose being respectively in the recesses of the insert whereby the interior of the tubular hose is substantially sealed to the interior of the coupling.

Abstract: A hose construction and methods of making the same are provided, the hose construction comprising a tubular hose and a coupling secured to one end of the tubular hose, the inner peripheral surface of the tubular hose comprising an inner corrugated hose made of polymeric material and having inwardly convex projections with recesses therebetween and extending from one end of the tubular hose to the other end thereof, the coupling having an insert disposed in one end of the tubular hose and being radially outwardly expanded into sealing relation with the inner corrugated hose, the insert having an outer peripheral surface defined by a plurality of outwardly convex projections with recesses therebetween, the projections of the insert being respectively received in the recesses of the inner hose and the projections of the inner hose being respectively received in the recesses of the insert whereby the interior of the tubular hose is substantially sealed to the interior of the coupling, the inner peripheral surface

Abstract: A hose connection for high pressure installations and a method for making the same in which a nipple provided with externally projecting beads or ribs, preferably of annular configuration, is internally expanded by an expanding tool while the hose is constrained against radially outward movement by a sleeve-like member. To enhance the holding ability of the connection, the sleeve-like member is provided with inwardly extending annular grooves, preferably so arranged that the deepest point of the annular grooves are located between peaks of adjacent beads or rims.

Abstract: A number of embodiments of sea water hose fixing devices for fixing a conduit within an opening of a marine outboard drive without damaging the hose so as to permit reuse of the hose upon disassembly. The conduit is maintained within the opening by means of a pair of interengaging inner members that interlock with the conduit and interlock the conduit with that member in which it is received without causing damage of the conduit so as to facilitate reuse.

Abstract: A hose construction, coupling therefor and methods of making the same are provided, the hose construction comprising a tubular hose and a coupling secured to one end of the tubular hose, the inner peripheral surface of the tubular hose comprising an inner corrugated hose made of polymeric material and having inwardly convex projections with recesses therebetween and extending from one end of the tubular hose to the other end thereof, the coupling having an insert disposed in the one end of the tubular hose and being radially outwardly expanded into sealing relation with the inner corrugated hose, the insert having an outer peripheral surface defined by a plurality of outwardly convex projections with recesses therebetween, the projections of the insert being respectively received in the recesses of the inner hose and the projections of the inner hose being respectively received in the recesses of the insert whereby the interior of the tubular hose is substantially sealed to the interior of the coupling.

Abstract: A kink resistant flexible plastic or rubber hose for spraying water is provided having a plurality of functions including resistance to hose kinking, water delivery through the hose when kinked and equalization of water pressure on both sides of the kink causing the hose to snap open. The hose is adapted for coupling to a pressurized water supply for delivery of water through the hose and a spraying device is coupled to the other end to provide sufficient back pressure for equalization and opening of the kinked hose during delivery of a pressurized stream of water. The hose is especially suited for use as a garden hose and for other water delivery purposes in boat, camper, car, patio, potable and other environments.

Abstract: A coupling assembly for hoses, fabricated of plastic and comprising one-piece male and multi-piece snap together female coupling sections. The male section includes an externally threaded fitting and an integral hub adapted to fit over the end of a hose section, the hub having internal circumferential ribs or barbs. A ferrule inserted into the hose expands the hose wall into engagement with the barbs for securing the section to the hose. The female section includes an annular collar likewise fitted over and secured to the end of a hose section. An annular flange is formed on the collar, and an internally threaded connector is provided, including an inwardly turned annular lip adapted to snap over and engage behind the flange for rotatably mounting the connector on the collar. The barbs are specially configured to bite into the hose material and resist separation of the coupling section from the hose in response to axial forces tending to pull them apart.

Abstract: A hose with connector end fittings for carrying pressurized fluid having longitudinally displaced internal ribs. These ribs run along inside walls of the hose to prevent flow termination due to kinking or compression.

Abstract: A composite male hose coupler comprising a metallic tail piece and an integral plastic nut, and a method of manufacture thereof, are disclosed. The metallic tail piece is formed of annealed brass and includes a cylindrical portion terminating in a radial flange portion disposed generally perpendicular to the longitudinal axis of the cylindrical portion. The plastic nut is formed with a lip portion molded around the entire peripheral margin of the flange portion of said tail piece, and a cylindrical portion disposed oppositely from the tail piece. The outer surface of the cylindrical portion of the plastic nut is provided with threads.

Abstract: The invention relates to a connecting part between a rigid mechanical element and a hose in which a fluid at high pressure travels. The connecting part has a hollow tubular part B enlarged at one end into a head (1) and driven into a hose A, an internal locking pipe C in the hollow tubular part B, and a clamp D.

Abstract: A clamping band for clamping a resilient gasket against an opening within a wall to provide a fluid-tight seal therebetween. The clamping band is generally circular-shaped and has an elongated slot extending inwardly from one free end of the clamping band and cooperates with an elongated projection of reduced cross section as compared with the nominal cross section of the clamping band and which is provided at the opposite end of the band. The projection is inserted into the slot, the clamping band is placed against the gasket arranged within the aforesaid opening and the gasket is expanded a predetermined amount by an hydraulic expander to exert the desired clamping pressure upon the resilient gasket. One surface of the projection is provided with a series of teeth. An opening communicating with said slot receives a wedge fitted into said opening and having several teeth along one surface thereof, which teeth conform to the teeth of said projection.

Abstract: The end portion of a hose is or can be bonded to the front section of a tubular connector whose rear section surrounds the end portion of the hose and has integral pallets with teeth engaging a circumferentially extending external rib of a nipple which receives the front section of the connector with the interposition of an annular sealing device. A deformable sleeve in the end portion of the hose biases the hose radially outwardly against the internal surface of the rear section of the connector.

Abstract: A coupled hose assembly of the type including a coupling attached to a polymeric hose by pinching part of a hose end portion. A pliable adhesive is disposed in part of the coupling to define a substantially leakproof seal between the hose and coupling at an environment temperature falling at least within the range of about 135.degree. C. to about -40.degree. C.

Abstract: A conduit consisting of a metal tube, with or without a plastic tube liner, is rendered strain accommodating by securing to its ends fittings that have a first component part to one end of which is joined the usual male or female coupling means or other connector means and to the other end of which is joined a sleeve which, in turn, is connected either directly or through another component part to the metal tube end. Said sleeve is joined to the component part or parts with provision for limited axial and angular movement and a fluid-tight seal therebetween. The plastic lining tube when present may be independently connected to the first component part with a fluid-tight seal or may pass therethrough. Alternatively, a short section of plastic tubing is connected with fluid-tight seals between the two component parts when present or between the first component part and the sleeve.

Abstract: A hose coupling for connecting lengths of fire hose is formed by coupling halves. Each coupling half includes a hose connection piece and a cam ring rotatable relative to the hose connection piece. The cam rings provide a bayonet-type locking engagement. The hose connection piece has two serially arranged axially extending sections each of different diameters. The larger diameter section receives and holds a length of the fire hose. A neck on the cam ring is rotatably attached to the smaller diameter section. The neck on the cam ring is held on the smaller diameter section against movement in the axial direction. A resilient back-springing holding ring is located adjacent the free end of a smaller diameter section in a recess in the section. The holding ring in combination with the free end of the smaller diameter section forms an annular space in which a sealing ring for the coupling is secured.

Abstract: The invention relates to a hose coupling whose halves are held together by identical cam rings (Storz coupling). For the solution of the problem to construct the connections which are to be arranged in the halves of such couplings to be short and light and in one piece and consequently without sealing problems even when the outer diameter of the connection is as large or even larger than the diameter of the cylinder which is limited by the inside of the cams, the joining between the connection and the cam rings is of similar construction as in cam rings of coupled coupling halves in that the connection (3) at its end which is to be joined with a cam ring (1) has an extension (6) which extends radially outwardly, forms a stop and is preferably constructed as a collar. In the cam ring (1) a shoulder (9) of a recess (8) of angular cross-section which extends behind the cams (2) is provided as a counterstop for the extension.

Abstract: The pressure hose is preferably a shower hose having an inner hose and an outer hose, between which can be provided preferably axially directed reinforcing threads and/or a reinforcing helix. At the free end of the pressure hose is provided a connecting nipple comprising two cross-sectionally in each case substantially circular jackets between which is clamped the hose end. In the clamping area, the inner hose and optionally the reinforcing thread surrounding it are longer than the outer hose and the reinforcing coil and are wrapped round towards the outside to form a hose wall reinforcement, which, after compressing the two jackets, ensures a reliable hold of the connecting nipple.

Abstract: The present invention relates to a device and method for lining a steel or iron service pipe with a plastic liner and securing an end of the plastic liner to the inside surface of the service pipe. More particularly, the device includes an expanding means removably attached to a hydraulic operated piston, and a plastic sleeve crimped to one end of the plastic liner. The piston forces the expander into the sleeve to deform the sleeve out against the service pipe.

Abstract: Male threaded hose connectors in the form of an integral sheet metal piece, and hose equipped therewith. The male threaded portion of the connector surrounds the hose and includes rolled sheet metal threads embedded in the hose material.

Abstract: A fluid conduit assembly is provided having at least two snug-fitting concentric pipes each of which is independently impervious to fluid. End fittings are secured to each end of the conduit and have separate portions joined, respectively, to a different one of both of the pipes with a separate fluid tight seal therebetween. The outer pipe is metallic while the inner pipe is non-metallic.

Abstract: A method of securing a flange ferrule to the end of a flexible tube having an exterior diameter slightly smaller than the interior diameter of the ferrule, comprises positioning the flange ferrule over the end of the flexible tube and aligning the flange at the end of the ferrule with the end of the tube, placing a flange clamp bushing which has an outer diameter smaller than the inside diameter of the tube into the tube and aligning a flange of the clamp bushing with the flange of the ferrule and, thereafter, expanding the clamp bushing outwardly into engagement with the wall of the tube. Before the outward expansion of the clamp bushing is effected, the clamp bushing and the ferrule are positioned in a matrix which has a receiving cavity with an outline conforming to the flange ferrule and the tube end and the clamp bushing.

Abstract: A hose coupling for hoses handling relatively high fluid pressures, which hose coupling embodies a cup-shaped body having primary and secondary internal grooves in a wall defining a chamber, and a tubular pressure element having a deformable externally grooved end portion at one end, an intermediate externally tapered portion, and a collapsible end portion. The deformable grooved end portion is adapted to squeeze material into the primary grooves. The collapsible end portion is adapted to squeeze material into the secondary grooves so as to enhance the securement and sealing of the hose relative to the hose coupling. Ball means movable axially within the hose coupling are adapted to cause axial movement of the tubular pressure element so as to initially collapse the collapsible end portion thereof and subsequently, to deform the deformable grooved end portion.