Abstract: A duct system is disclosed for telephone cables and other cables and conductors. The duct system includes a conduit having multiple bores each adapted to contain a cable, and a hollow, tubular duct branching from the conduit and adapted to contain a single cable or group of cables. The duct system also includes a connection adapted at one end to be attached to the conduit and to communicate with one of the bores of the conduit and adapted at the other end to be attached to the end of the tubular duct. The connection provides an easily and economically installed means for connecting single bore tubular ducts to multiple bore conduits which maintains the integrity of the duct system, may be formed of a long-life plastic material, and which provides a smooth interior surface for the pulling of cables therethrough.

Abstract: There is disclosed an accumulator filter and conduit clamp assembly of the type to be applied to an apertured conduit. The assembly includes a filter unit and a conduit clamp integrally joined to the filter unit. The conduit clamp includes a pair of relatively rigid arms having inner surfaces contoured in general correspondence to the outer transverse dimension of the conduit, resilient hinge means joining the inner ends of the arms together including an arcuate inwardly projecting portion arranged to engage and exert a compressive force against the outer surface of the conduit, and latch means at the free ends of the arms for locking the free ends together. A projection extends inwardly from one of the arms and is dimensioned for being received by the conduit aperture. The projection includes a through aperture for communicating the filter unit with the conduit.

Abstract: An in-line junction member for tubes comprising an open-ended longitudinally slitted tubular socket member through which slit a portion of a flexible tube can be moved by flattening the tube either having a hollow spike with a sprinkler-engaging hollow takeoff, or alternatively a takeoff for a normal tube junction whereby a tube can be fitted into the hollow of the slitted tubular socket and engaged on a nipple and optionally with a keeper.

Abstract: A tee connector for coupling a corrugated tubing lateral normal to a larger diameter corrugated tubing main with a circular aperture in its side wall. The connector has a first end with a circular periphery sized to be received in the aperture. The first end is configured with two arcuate longitudinal recesses separated by two arcuate protuberances to conform with the interior surface of the main. Adjacent the first end are positioning projections which abut the exterior surface of the main to position the connector normal to the main. Also, adjacent the first end are tabs which are snapped through the aperture to engage the interior surface of the main. The lateral is received in a bore in the second end. The length that is received is limited by limiting projections in the bore adjacent the first end. Detents on the interior surface of the bore engage the corrugations of the lateral to inhibit its removal from the connector.

Abstract: A branch piece for pipe-lines comprising a first part and a second part for forming a cylindrical housing, each of the two parts being provided with a coupling edge for engaging a connecting or closing part. The parts are provided with wedge-shaped tongues which fit in complementary wedge-shaped recesses in the other parts.

Abstract: A T-joint fitting comprising two parts for clamping to an existing length of pipe encloses a piston, which is axially displaceable by firing of a cartridge. The piston cuts a hole in the wall of the pipe and is provided with a transverse passage, which will serve for conducting fluid from the pipe to a second passage in the fitting.The length of the piston is selected so its front, cutting edge rests against the envelope wall of the pipe, when its back face is about level with the open end of the first passage. The cartridge is a disc-shaped shell, having about the same diameter as the portion of the housing enclosing the first passage, this portion having external threads. There is an eccentrically located socket for a firing cap at the face of the shell to be turned outwards in use.A cup-shaped nut engaging these external threads has in its inner bottom surface a recess for reception of the cap containing socket, the recess being further adapted to make the firing cap accessible to a firing pin.

Abstract: A service clamp for use as a fitting in tapping a hole in a main pipe and/or for supporting a branch pipe, the service clamp being particularly adapted for use when the main pipe is plastic such as polyethylene (PE) or polyvinyl chloride (PVC) although it may be used with pipe made from other material including metal pipe. The service clamp comprises two saddle parts for encircling the main pipe, one of the saddle parts carrying a branch pipe extension with a throughbore, and each saddle part carrying, prior to assembly of the service clamp, at least one of the screws or bolts used during assembling the clamp about the main pipe.

Abstract: Tapping apparatus is provided for cutting an opening in the wall of a conduit and providing fluid tight communication between such opening and a second conduit via a rotatable outlet to facilitate alignment and connection of the second conduit to the tapping apparatus.

Abstract: A hollow body is connected by a compression seal and a split collar over a closed end of a first pipe containing fluid under pressure. A lateral screw-type cutter connected to the body has a circular knife edge with one or more scallops, the knife edge being formed and being positioned to cut cleanly a single slug from a first pipe at a point within the body near the seal. An end of the body opposite that end sealed to the first pipe has a nipple to which a second pipe is connected, and a strainer positioned across the nipple retains the slug within the body. Space between the first pipe and the body is sufficient to provide a passgeway for full flow of fluid through the hole of the first pipe to the nipple for the second pipe. The second pipe usually continues in a direction coaxial with the first pipe.

Abstract: A method of joining tubular elements to provide fluid tight connections is disclosed in which the mating portions of the joined tubes are preformed so as to be able to be located with respect to each other prior to soldering, brazing, or other joining process. The preforming operations involve the punching or shearing of an opening in the sidewall of a body tube to which a branching tube is to be joined, in which shearing operation a pair of cusps or tabs are formed at opposite locations on either side of the sheared hole. The punching or shearing is carried out by a punch tool moved to intercept a segment of the body tube sidewall to form an opening, with portions of the tubing wall on either side of the opening formed remaining, these portions being displaced upwardly by the tool to provide the locating cusps or tabs at the periphery of the opening so-formed.

Abstract: A self-sealing branch attachment for rigid or flexible tubing comprising a four part attachment having two self-mating members that assemble around a main tubing and an insert and seal that coact with the self-mating member to lock the attachment to the main tubing and provide a leakproof connection between the main tubing and the branch tubing.

Abstract: A hot tap housing for mounting over a main pipeline located underwater or in another restrictive environment adapted for use with a hot tap machine to connect a branch pipeline to the main pipeline. The hot tap housing includes a central housing section and a lateral housing section. The central housing section includes a central bore for receiving the main pipeline and first and second central housing grip and seal assemblies are mounted in the central housing bore for gripping and sealing off the main pipeline on either side of the lateral housing section. An access sealing assembly is mounted with the lateral housing section and includes an access sealing member which is movable in the lateral housing section bore into sealing engagement with the outer surface of the main pipeline in order to isolate an approximately circular area which is to be cut out and removed by a hot tap machine.

Abstract: An assembly of interconnected conduits including first and second conduits each having an aperture extending through its wall surface. The conduits are disposed adjacent to one another and a coupling interconnects them by presenting a fluid flow passage between the apertures.

Abstract: Mating halves of plastic composition form a tapping sleeve service connector for mounting a branch connection on an inservice plastic gas main. A tapping tool supported in communication with the branch outlet is provided in one of the sleeve halves. Emplaced lining the internal pipe gripping surfaces of the sleeve halves is a dual faced, open mesh, basket woven fabric containing a random distribution of particle abrasive bonded on each of the faces. The particle abrasive is of a relatively harder composition than the plastics of either the service connector or gas main to effectively penetrate or imbed in the opposed surfaces of each when the sleeve halves are assembled in place. By being imbedded in this manner the abrasive fabric acts to secure and prevent relative rotational slippage between the service connector and pipe on which it is mounted.

Abstract: This invention provides a pipe tapping band of the type formed in two halves adapted to be clamped about a pipe to be tapped, one band half having an internally threaded integral ferrule to receive conventional pipe tapping means, a recess in the inner surface of the tapping band around the ferrule aperture, said recess arranged to receive and locate an apertured resilient seal between the tapping band and the outer surface of the pipe about an aperture formed therein and with said seal having peripheral lips arranged to provide sealing engagement with the tapping band and the outer surface of the pipe about the aperture therein.

Abstract: A nipple which may be inserted into one pipe for attaching another pipe intermediate ends of the one pipe. A shield extends about the nipple and conforms to the outside of the one pipe to aid in adhesively sealing the nipple thereto.

Abstract: This invention relates to a pressure/vacuum system apparatus; one part of such apparatus being an economical fitting, another part being operating mechanism, another part being a means to join such fitting to such operating mechanism in a substantially fluid-tight manner, all operable to perform certain functions together without shutting down the pressure/vacuum system they are attached to. Some installations require many fittings. In many instances an operating mechanism may be attached to an operated fitting for only short periods of time and then disconnected therefrom, leaving the operated fitting in (a) a dormant condition in relation to its functions to the pressure/vacuum system, or (b) in a functional condition in relation to the pressure/vacuum system. Thus, in many cases a single operating mechanism may be used for operating each of a number of different fittings from time to time as required.

Abstract: A self-piercing needle valve having a body and a shank is adapted for mounting upon a pipe. A valve support plate extends transversely of and is secured to said shank and has a right-angle extension at one end. Said extension along its length on one side has a series of variably spaced parallel wedge-shaped slots corresponding to different pipe diameters. The support plate is adapted to extend transversely of and bear against one side of a pipe. An anchor plate is spaced from and opposed to the support plate and adapted to bear against the opposite side of said pipe. A transverse slot through one end of the anchor plate is adapted to loosely receive said extension upon one side of the pipe, with portions of said anchor plate bounding said slot retainingly nested within one of said notches. A fastener upon the other side of the pipe extends between and interconnects the opposing ends of said plates for drawing the plates together and for gripping the pipe therebetween.

Abstract: Mounting apparatus for installing a food waste disposer in a sink in a bottom opening thereof wherein the disposer is moved downwardly through the opening and is clamped to the sink about the edge of the opening. A water inlet connector is mounted to the disposer subjacent the sink and a waste discharge conduit is mounted to the disposer below the water inlet connection. An improved clamp ring and locking ring structure are provided for effecting the clamping of the disposer to the sink opening edge. The water inlet connector is installed by movement downwardly through the upper end of the disposer and subsequently urging it outwardly through a horizontal opening of the disposer. The water discharge conduit includes a tubular element secured to the disposer by a strap clamp encircling the disposer.

Abstract: An improved device for enabling a small diameter milking hose to be removably connected to a larger diameter manifold of a milking system through an opening in the wall thereof and for automatically closing the opening through the wall of the manifold when the milking hose is not connected thereto is disclosed. The method of making such device primarily from flat spring steel stock by simple stamping and forming techniques is described and preferred structural features of the completed device providing for optimum performance in use, inexpensive manufacture and ease of application and removal from the larger conduit are described.

Abstract: A branch piece for pipe branch connections comprising two parts. The first part is provided with two longitudinal edges extending parallel to the axis of the branch pipe, and the other part is provided with one longitudinal edge which can be coupled with one of the longitudinal edges of the first part. The second longitudinal edge of the other part tapered. A separate wedgelike connecting member has two lips each adapted to engage with a longitudinal edge of the first part and of the second part.

Abstract: A flushing attachment comprising a resilient belt is constructed to be wrapped around and secured on the lower motor housing so that a hose fitting fastened through an opening in the belt registers with one or more water inlet ports on one side of the housing. The belt is disposed in wrap-around position to cover one or more additional water ports on the opposite side of the housing. When the motor is removed for cleansing, a garden hose is attached to the hose fitting to apply tap water to the set of water inlet ports on the one side, forcing a portion of the water into the motor and out through the cooling system. The belt is flexed in response to excess water pressure, releasing from housing ports on the opposite side that portion of the water which does not pass through the engine.

Abstract: Apparatus is provided for pneumatically communicating with a pressurized cable provided with a peripheral opening. The apparatus includes a saddle of resilient material having a cross-section defined by a parabola and the arc of a circle. The saddle is adapted to sit astride the cable in surrounding relationship with the opening. A pneumatic fitting is molded into the saddle in generally parallel relationship with the cable. The saddle is provided with a bore communicating with the fitting and generally perpendicular thereto. The bore communicates with the opening in the cable. A sealing compound is provided between the saddle and the cable and the saddle is held on the cable by a pair of straps holding a metal strip against the saddle. An orientation protrusion is located on the saddle in alignment with the bore and protruding through an opening provided in the strip.

Abstract: A branch fitting for permanent attachment to the periphery of a pipe including a tubular portion having an inner diameter less than or the same as the inner diameter of the pipe, a saddle portion surrounding and extending outwardly and downwardly from the base of the tubular portion and having its under surface generally conforming to the outer surface of the pipe, and positive alignment means integral with the fitting at the junction of the saddle portion and the tubular portion whereby the fitting is self-aligning and self-jigging relative to an opening in the pipe.

Abstract: A tapping sleeve for mounting on an in-service pipe under pressure in which a pipe opening is to be formed. The sleeve comprises upper and lower sleeve halves, one of which supports an endless gasket adapted to provide a pressure seal about the branch opening when formed in the pipe. Contained in the lower sleeve half are a plurality of arcuately displaced longitudinally extending metal pads mounted for articulation and adapted to support the pipe against internal pressure forces. The pipe engaging surfaces of the pads are inwardly curved approximating the pipe radius and are sufficiently deformable to enable surface conformance with the circumferential curvature of pipe wall in distributing the unit force loading therefor.

Abstract: A pipe branch fitting has a cylindrical body freely slidable along the pipe to a point where a hole is pre-cut in the pipe. On one side, the cylinder carries a screw-threaded tubular insert on which the branch is to be connected. A gasket between the insert and the pipe gives a seal as the insert bears upon it as the insert is tightened up. The inner end of the insert has a stepped shoulder which abuts the periphery of the hole in the pipe and limits the compression applied to the gasket. The reduced diameter end of the insert locates itself in the hole and indicates if the fitting is misaligned with the hole.

Abstract: A pipe tee unit which may be mounted to a pipe for attachment of an extension tube to the pipe. The tee unit is formed of a pair of clamp members which are each formed with a circular concave recess of less than semi-circular section on their respective inner faces for clamping about a cylindrical pipe. One of the clamp members is externally fitted with a threaded nipple formed with a through hole for use in guiding a drill so as to cut a hole in a pipe clamped by the two members, when the two members are bolted together about a pipe. An extension tube fitted to a threaded collar is then fastened by the said collar to the nipple.

Abstract: An invention relating to a device adapted to connect a branch line to a main pipeline without interrupting flow of fluid through the mainline. The device includes a pair of tubular, cutter-containing portions and a branch line connection. The device further includes the means to pressure test the branch line prior to the actual cutting or tapping into the mainline.

Abstract: Branch connection for a pipe, which connection comprises a saddle-shaped part provided with an internally screw-threaded tubular member integral with said part, and a tee piece provided with a screw thread which engages with the first-mentioned screw thread, a sealing member being disposed between the end of the tee piece nearest to the pipe and the external screw thread on said tee piece.

Abstract: Disclosed herein is a flushing device for supplying fluid to a water intake port on a lower unit of an outboard motor. The device comprises a flexible strap having a first end and a second end, along with a buckle connected to the first end. The buckle includes a kinked portion which has a cross member and which is adapted for engagement with the lower unit, which buckle also includes an over-the-center latch pivotally connected to the kinked portion. The buckle also includes a strap link connected to the first end of the strap and connected to the latch at a point radially outwardly spaced from the kinked portion pivotal connection with the latch. A cup-shaped member is connected to the strap and spaced from the buckle, which member is adapted for sealing engagement with the lower unit and for covering the water intake port. The cup-shaped member includes a conduit adapted for communication with the water intake port and with a source of fluid.

Abstract: Two embodiments of a hot tap are disclosed. In the first embodiment, a hot tap is formed around a pipeline. It includes an elongate sleeve divided into two semi-cylindrical portions. The two portions preferably bolt together. They divide along two lengthwise edges. In the lowermost half, stationary semicircular gripping devices for gripping the pipe are enclosed. They are formed as inserts in the lowermost portion. In the uppermost portion, a semicircular tapered wedge is included at the remote ends. The wedge is located adjacent to a movable tapered collet. It has a set of serrations or teeth which dig into the pipeline. The collet is driven lengthwise against the wedge by means of hydraulically actuated pistons and cylinders. The pistons and cylinders extend, thereby driving the collets against the tapered wedge to firmly grasp the outer surface of the pipe. This arrangement is located at both ends of the elongate cylindrical member. This secures and locates a laterally directed tubular member.

Abstract: A line tap valve having a body portion integrally formed with opposed leg portions defining a saddle for the reception of a line to be tapped and bendable into embracing relation about the line to retain it securely in place during soldering or brazing, the line tap valve further comprising piercing needle mechanism separable from the body portion during the soldering or brazing operation, but adapted to be permanently assembled thereto after such soldering or brazing by a body screw-on cap and associated flare mechanism operative to simultaneously pierce the line and swadge a retaining ring for securing the piercing needle mechanism in place.

Abstract: Tapping tee for a main pipe having integral coupling means for coupling to branch pipes made of flexible or relatively inflexible synthetic materials. A branch-receiving socket has a support pipe fitting snugly inside the branch pipe, and an integral sleeve having a part fitting snugly to the branch pipe outside, and a part with an enlarged bore for a sealing means.

Abstract: A split-sleeve type pipe device for assembly on a pipe for sealing off at a leak, hot tapping a pipe at a desired location, and electrically insulating the pipe for cathodic protection. The coupling includes a one piece gasket insulator having split annular end seal portions connected by longitudinal side runner seal portions, and a pair of housing halves which fit together over the gasket to form a sealed housing along the pipe. Annular portions extend axially from either side of each annular seal portion for insulating the pipe from the housing. One of the housing halves has an externally threaded side boss defining an opening into the housing through one of the shell halves for manipulation of pipe cutting equipment and for connection of a valve or other suitable equipment. Both housing halves have internal and external flanges for engaging annular electrical insulator portions. End set screws and compression rings are provided for gasket compression.

Abstract: Branch pipes are secured to main pipes mechanically by means fitted about the main pipe at a hole in the pipe wall. Two sections of the outlet contact the main pipe around its entire circumference, and either or both sections can have a spigot for fitting within a hole through the pipe wall to align the branch accurately. The housing sections have means for easy bolted assembly and for accurately positioned reception of a pressure sensitive gasket.

Abstract: An apparatus and method for opening a flow-way in a main when the main is to be connected to a secondary main or service line. The apparatus includes a fitting arranged to be at least temporarily secured to the main, the fitting being provided with a cutter member for preliminarily cutting a coupon from the main to form a preliminary hole in the main and a tapping tool for progressively enlarging the hole to a predetermined size, the tapping tool directing the material from around the hole as the hole is being progressively enlarged in the predetermined direction. The tapping tool remains in the fitting and in the hole formed in the main to function as an internal mechanical connector for holding the fitting securely on the main.

Abstract: A pipe joining device for interconnecting a main pipe to a branch pipe in fluid flow communication comprises a lug pipe, sealing collar and lock nut. The lug pipe is a short, externally threaded pipe having a pair of lugs extending radially from one end thereof. Arches cut in the central portion of the lug pipe extend the undercut stem portion in line with the lugs. A tilting and rocking motion inserts first one lug and then the other into a hole cut in the main pipe, clearance for the tilting movement being provided by the undercut stem and arches. The contoured sealing collar and lock nut are attached to the lug pipe to fasten the device to the main pipe. The branch pipe is externally threaded so it can be threaded into the internal threads of the lug pipe to complete the connection. A caulking, bonding or adhesive agent may be employed to provide a more fluid tight seal of the component parts.

Abstract: The invention provides a valve assembly for use on a refrigerating pipe line to gain access to the refrigerant so that it can be removed or replaced without disassembly of the piping while repairs are being made. The assembly is a compact structure comprising a single integral body member having a stem within which is a movable pierce valve and having a transverse threaded nipple forming an internal fluid passageway controlled by the adjustment of said movable pierce valve. The valve is in non-removably position within said body and is sealed to said body by an O-ring placed in an undercut on the stem of said valve. Interchangeable clamp plates secure the pipe line to the body adjacent the point of the pierce valve. Each of two interchangeable plates has two sets of grooves so that four sizes of tubes can be accommodated by interchanging and adjusting the two clamp plates. The construction is simple but reliable and an improvement over all known prior art.

Abstract: Disclosed is an apparatus for selectively connecting different sizes of service conduits to mains. The apparatus has a fitting with first and second bores therethrough. These bores are axially spaced and positioned in the fitting to radially extend from the main when the fitting is fixed thereto. A port adjacent the end of the fitting shaped for connection to the exterior of the main interconnects the two through bores. An annular flange is provided around a counterbore in the first bore for selectively connecting various sizes of service lines to the fitting. Internal threads are formed in the second bore for receiving an externally-threaded tapping means for manipulation axially through the bore to cut a coupon from the wall of the main to interconnect the main with the first bore. A sealing plug is provided for sealing the open end of the second bore.

Abstract: Cable reclamation method and apparatus by which moisture is precluded from entering or is purged from an electrical cable by injecting a two-part polymerizable compound in liquid phase into and along the cable. Any moisture present is purged through an outlet port distant from the compound entry port. The compound takes a permanent soft-solid set at normal ambient temperatures within a few hours as a paste-like gel readily removable at any future time to permit cable splicing and servicing operations. This soft-solid gel forms a moisture-proof nonconductive sealing barrier precluding entry of moisture and restoring normal cable operating conditions. The compound supply tank is pressurized with air or gas to transfer the compound in liquid phase into the cable, the pressurized gas being used initially to agitate and intermix the compound constituents.

Abstract: Disclosed is an apparatus for connecting a service line at a right angle to a main, having a fitting with one end shaped to be fixed to the exterior surface of the main in a plane with the fitting extending horizontally from the main. First and second through bores are formed in the fitting. These bores are axially spaced and positioned in the fitting to radially extend from the main when the fitting is fixed thereto. A port adjacent the end of the fitting shaped for connection to the exterior of the main interconnects the two through bores. Means is provided in the first through bore for connecting a service line to the fitting to extend radially from the center of the main. Internal threads are formed in the second through bore for receiving an externally-threaded tapping means for manipulation axially through the bore to cut a coupon from the wall of the main to interconnect the main with the first through bore. A sealing plug is provided for sealing the open end of the second through bore.

Abstract: An improved apparatus for securing an externally threaded line tap valve to the exterior of a penetrable tubing line such as that found in a closed refrigeration system. The apparatus is adapted to secure a line tap valve to a line having any of a plurality of outside diameters. The apparatus includes a body member having a threaded passage extending therethrough and a substantially square lateral cross-section. A first cylindrical outer surface is formed adjacent one end face of the body member and a second cylindrical outer surface is formed intermediate the first cylindrical outer surface and the opposite end face of the body member.