Abstract: A joint for connecting first and second pipes, each including spaced inner and outer pipe members and a foam material filling the space between the inner and outer pipe members. The inner pipe members of the two pipes are adapted for conveying a fluid medium, the inner pipe member of the first pipe having a flared female end and the inner pipe member of the second pipe having a male end sealably inserted in the female end. The foam material in the second pipe is provided with a recess in which the first pipe extends so that the foam material in said first pipe confronts the foam material in the second pipe. The outer pipe member of the first pipe has an annular groove therein which faces outwardly and a coupling in the form of a separate tubular member secured to the second pipe or a thickened portion integral with the second pipe surrounds the outer pipe member of the first pipe and has an annular groove therein which faces inwardly and is in registry with the annular groove in the outer pipe member.

Abstract: A fuel hose assembly having a swivel coupling for interconnecting the gasoline dispensing nozzle with the coaxial hose of the pump, with the swivel coupling retaining the inner and outer hose in their spaced apart positions thereby defining separate passageways while permitting the hoses to rotate relative to each other and permitting the dispensing nozzle to rotate and swivel relative to coaxial hose connection to a fuel dispensing pump.

Abstract: A suction nozzle for a vacuum cleaner runs on rollers (4) at the ends of a suction passage (24) whose front and rear margins are defined by replaceable insert strips (7', 8', 9'; 7, 8, 9). The rollers have a cranked axle bar (5) supported at intervals by open bushings (23) of different orientations, integral with the nozzle body (1). At the ends of the suction passage (24) gaps between the rollers (4) and the front strips (7, 8, 9) create lateral suction. A plastic covering (2) caps the nozzle body (1) and is secured by integrally molded studs (14).

Abstract: A hose end coupling unit which has an expandable interlocking snap ring interconnecting a plug member inside a socket member. The interlocking snap ring has a countersunk or funnel-shaped mounting hole, which fits over a frusto-conical cam surface on the plug member and is expanded thereby, as the plug member is inserted into the socket member, into an internal groove within the socket, and is held in an expanded state confined in the groove, after passing over the cam surface, on a cylindrical shoulder portion on the plug member. A spacer snap ring nested in an external groove in the plug member, outside the socket member, prevents the plug member from being inserted deeper into the socket member once the interlocking snap ring is seated on the shoulder portion. An O-ring seal at the entrance of the socket member seals the interconnected plug and socket members.

Abstract: A pipe swivel joint for use at underwater or other submerged locations provides a system for circulating a lubricant under pressure through the joint's bearing race chamber and for monitoring the lubricant pressure to detect any leaks in the joint. The composition of the circulating lubricant can be analyzed to ascertain when an outward leak of pipe fluid or an inward leak of sea water into the lubricant exists. The leak can be halted by changing the lubricant pressure to match the pressure of the pipe fluid or the pressure of the sea water leaking through a defective seal so that operations can continue until the leak is repaired.

Abstract: A swivel joint for incorporation in a pipe network maintains flow path integrity at the joint for both swivel and rigid connection modes. A butt flange and a connector body having aligned flow paths therethrough are coupled together by a bearing which provides rotational movement between the butt flange and the connector body. A dynamic seal is disposed between the butt flange and the bearing. A retainer between the bearing and the connector body allows axial movement therebetween when the connector body is urged toward the butt flange, but restrains such axial movement when the connector body is urged away from the butt flange. A static seal carried by the butt flange and axially spaced from the connector body in the swivel mode is engaged by the connector body when the latter is moved axially toward the butt flange, thereby establishing the rigid connection mode.

Abstract: A rotatable coupling member for attachment to an end or between the ends of hose or tubing to be used in the conveyance of a fluid under pressure. The coupling member comprises a first body member having means disposed at one end thereof for attaching the first body member to a source of fluid and a substantially tubular shaped insert extending away from a second end thereof into an axially aligned receiving bore disposed at a first end of a second body member that provides a fluid interconnecting relationship to a second end of the second body member having means disposed thereat for attachment to a source of fluid. An annular retainment groove having a cross-sectional shape capable of being altered as a result of an axial compressive force being applied to the insert is disposed in the first body member insert outer wall.

Abstract: A rotary seal for a swivel joint is provided which is capable of standing substantially high internal pressure without leakage. Such swivel joints are widely used, for example, to prevent external leakage of products down the drain line in floating roof tanks. Also the sealing surfaces utilized are corrosion resistant to most acids.

Abstract: An improved articulated ball connector for use with pipelines as disclosed. In the illustrated embodiment, a sphere is attached to the end of a pipeline. A collar is fitted about the sphere. The collar has a surface contoured to match the surface of the sphere and its rotates or deflects through a designated angle. The collar has an encircling outer groove. A cup shaped receptacle receives the curved surface of the ball. The collar is abutted against a transverse shoulder on the cup shaped receptacle. The ball is pivoted relative to the cup shaped receptacle and the collar. A ring having a cross section which is U-shaped latches about the cup shaped receptacle and the collar. The U-shaped cross section includes upper and lower shoulders which protrude inwardly and engage the cup shaped receptacle and the groove in the collar. The ring is squeezed radially inwardly to clamp the cup shaped receptacle and the collar together.

Abstract: A hose fitting which comprises a body having a longitudinal fluid passage adapted to receive a hose, an O-ring provided in the fluid passage so as to give water- or air-tightness to a space formed between the outside surface of the hose inserted in the fluid passage and the surrounding wall thereof, a quick hose-disconnecting mechanism provided between the O-ring and the outlet of a fluid passage for gripping the hose in such a manner as to prevent reverse motion and disconnecting the hose by the aid of a single manual pressing operation, and a rotary joint provided rotatably at the inlet end of the fluid passage and adapted to be connected to a fluid supply source.

Abstract: A fluid conducting swivel joint is disclosed which has a sealing system effective against the leakage of fluids of extreme temperature. The joint consists of two housings mounted for relative rotation about an axis, the housings having a fluid passage therethrough. A first annular sealing chamber, having a seal therein, surrounds the passage, and is located adjacent the passage at the interface between the housings. Each housing has a radial flange at said interface, said flanges spaced apart to define an annular tempering chamber therebetween. A second annular sealing chamber, having a seal therein, is positioned between the flanges outboard of the tempering chamber. A temperature controlling chamber is mounted on one or both of said flanges. One of the housings may have an annular insulating chamber, and insulating members may be used to additionally insulate the second sealing chamber.

Abstract: A system is disclosed for dispensing fuel, e.g. gasoline, from a reservoir tank into a consumption tank as in an automobile. The system incorporates two fluid flow channels, first a channel for liquid fuel and second a return line for fluid vapors. The channels include flexible hoses extending from a pump to a dispensing nozzle with rotatable or swiveled couplings. The couplings include two mating members affixed together to provide a fluid seal and relative rotation to accommodate swivel movement. One coupling member includes a fastening section which may be threaded to affix the coupling to a rigid structure, e.g. pump or nozzle. Also, the one member includes a somewhat cylindrical section defining an external, concentric groove for receiving a ring of nylon-like material. The cylindrical section of the one member is telescopically received within the other member which defines an internal groove for locking engagement with the nylon-like ring.

Abstract: A submersible large diameter pipe swivel is provided with seal means which is designed and adapted to allow small radial and axial relative movements (wobble) between the pipe and the swivel joint, while maintaining full integrity of the seal and which, being unaffected by such wobble, therefore offers minimum resistance to rotation.

Abstract: A swivel connector comprises three hollow members with the first and second members rotatably connected to each other for rotation about a first axis and the second and third members rotatably connected to each other for rotation about a second axis at an angle to the first axis. The first member has adjustable members for connection to the gasoline supply and vapor return passages of a gasoline dispensing nozzle body. The third member has the gasoline supply and vapor return hoses, which are connected to the pump pedestal, connected thereto. A hollow tubular member is supported in the first and third members and extends through the second member to provide the passage for the gasoline supply within the swivel connector while the space between the inner walls of the first, second, and third members and the outer surface of the hollow tubular member provides the vapor return passage within the swivel connector.

Abstract: A rotary gas seal provides a gas tight connection between a pair of pipes having a common axis wherein one pipe is capable of rotation with respect to the other about their common axis. One of the pipes extends into the interior of a tubular seal member through an end wall to which it is secured by a rigid gas tight seal. The other pipe is rotatably sealed to the seal member by a gas tight gland. The seal member is secured in one part of a rotary bearing so that the bearing axis lies on the common axis of the pipes while the other pipe is secured to another part of the bearing.

Abstract: A hand tool is constructed for detachable connection to a fluid cleaning machine such as a steam cleaning unit. A hollow head has convexly rounded front and rear edges to promote smooth back and forth sliding motion over fabric. Forward and rearward regions of the head constitute a suction chamber and a spray chamber respectively. A fluid solution line is surrounded and protected by a flexible suction hose that is releasably coupled to a neck of the hand tool. A flow control interconnects the fluid solution line and a spray nozzle in the spray chamber. Baffles positioned across a lower opening of the suction chamber reduce wrinkling and ridging tendencies of the fabric as it is being cleaned.

Abstract: A swivel connector between a flexible hose and a nozzle has a reduced portion of a first body secured to the nozzle and an enlarged portion of a second body secured to the hose with the first and second bodies, which have an enlarged portion of the first body overlapping a reduced portion of the second body, providing aligned passages therethrough to provide communication between the hose and the nozzle. A plastic thrust bearing is disposed between a metallic ring secured by set screws to the enlarged portion of the first body and a metallic ring mounted by flats on the ring cooperating with flats on the reduced portion of the second body so that each of the rings rotates with the body to which it is connected.

Abstract: In a two-stage combine grain tank unloading system, grain is conveyed upward by a generally upright but forwardly inclined auger conveyor, through a transition housing into a generally horizontal unloading auger conveyor, which can be swingably adjusted, to discharge the grain away from the side of the combine, in a range of positions called an unloading zone. The unloading auger conveyor is rigidly attached to the transition housing which is free to swivel on a ring surrounding the upper end of the upright auger conveyor housing. The drive for the horizontal unloading auger is taken from the upright auger through a bevel gear case mounted partly within the transition housing.

Abstract: A marine loading arm equipped with an improved pipe swivel joint at the outer end of the arm's triple-swivel coupling assembly that functions to connect the outer end of the arm to the manifold flange of a marine tanker. The weight and axial dimension of this improved swivel joint are less than that of conventional swivel joints of the same pipe diameter, so that the coupling flange at the distal end of the triple-swivel assembly rests in a more vertical attitude, thereby easing the task of coupling the arm to the tanker's manifold flange and reducing the moment load imposed on that flange. The improved swivel joint also includes an arrangement for gaining quick and easy access to its packing chamber when replacing the packing between the joint's relatively rotatable elements becomes necessary.

Abstract: An adjustable stem drop apparatus and method for a fire extinguishing sprinkler mounted on a pipe located above the ceiling of a building and arranged in such a manner that the position of the sprinkler can be adjusted from below the ceiling after the ceiling has been permanently installed.

Abstract: A swivel joint and connection for abutting high pressure hydraulic manifolding, the joint comprising two flanged non-rotating swivel bodies with one of the non-rotating swivel bodies having a rotating swivel body journaled therein. A flanged tubular sleeve is secured between the adjacent end faces of the two non-rotating swivel bodies with the opposite ends of the tubular sleeve received respectively in counterbores formed in one non-rotating swivel body and in the rotating swivel body, respectively. A static annular seal is disposed between the first end of the tubular sleeve and the counterbore in the non-rotating swivel body and a dynamic annular seal is disposed between the end face of the opposite end of the tubular sleeve and the counterbore in the rotating swivel body. Improved composite elastomeric and metallic annular dynamic seals are also disclosed.

Abstract: A swivel joint and connection for abutting high pressure hydraulic manifolds, the joint comprising two flanged non-rotating swivel bodies with one of the non-rotating swivel bodies having a rotating swivel body journaled therein. A flanged tubular sleeve is secured between the adjacent end faces of the two non-rotating swivel bodies with the opposite ends of the tubular sleeves received respectively in counterbores formed in one non-rotating swivel body and in the rotating swivel body, respectively. A static annular seal is disposed between the first end of the tubular sleeve and the counterbore in the non-rotating swivel body. A resilient dynamic annular seal is disposed between an annular shoulder on the opposite end of the tubular sleeve and a first counterbore in the rotating swivel body.

Abstract: A device for transmitting high pressure fluid between relatively rotating mbers. One of the members is equipped with a protruding axial cylindrical pipe having an accurately machined outside diameter and the other member has an accurately machined central bore receiving said pipe. By careful positioning and dimensioning of parts the pipe of the one member rotates in the bore of the other member without friction and with negligible loss of fluid.