Abstract: An apparatus and method for sealing a port of a distribution head in a fuel dispensing system. A plug has a head, flange and threaded shank. The flange extends radially beneath the head and includes a seal engagement surface. A sealing member is positioned upon the seal engagement surface. The port has NPT threads formed therein for engaging with the threads of the plug. When the plug is fully engaged with respect to the port, so as to be bottomed out, a seal is formed between the plug and port while the threads of the plug and port do not achieve an interference fit, to allow for easy removal of the plug.

Abstract: A nozzle cap for sealing a nozzle which penetrates a nuclear reactor vessel, and a method of using such, is provided, and includes a closure portion suitable for closing an open end of the nozzle under pressure associated with the nuclear reactor vessel, a skirt portion that is cylindrically formed beneath the closure portion, a flexible element that is secured to the skirt portion and may include concave portions to accommodate vibration movements between the nozzle and the nozzle cap, and a weldment lip that is secured to the flexible element, and welded to the nozzle.

Abstract: Disclosed is a plug and fastener for sealing in an opening formed in a workpiece, and the plug and fastener includes a shank having a threaded portion for engaging with an internal wall of the opening and providing a first seal, and having a sealing portion extending from the threaded portion. The sealing portion initially enters the opening and is configured to engage and provide a second seal against the internal wall of the opening.

Abstract: A removable plug for an internally threaded opening has particular application in a system for closing an opening in the sidewall of a pipe. The system includes a nipple having an inner end attached, such as by welding, to a pipe, and an outer end having internal threads. A short length externally threaded cylindrical plug body is threadably positionable within the nipple outer end, the plug body having a recess in a top surface thereof. An insert is affixed within the plug body recess providing an operating space within the recess below the insert, the insert being formed of a metal plate having a tool receiving central opening therethrough and at least one integral tang portion extending downwardly into the plug body operating space, the insert being secured, such as by welding to the plug body. The insert central opening is shaped in a geometrical pattern, such as a square, to slidably and non-rotatably receive a plug engaging portion of a driver of matching cross-sectional configuration.

Abstract: A plug for a threaded port is formed of resilient elastomeric material and has upper and lower ends. A smooth non-threaded outer cylindrical wall is disposed between the ends. The outer cylindrical wall has an outer diameter sufficient to frictionally engage the threads of the port. An outwardly protruding collar is disposed between the upper end and the outer cylindrical wall. An annular bead is integrally formed on the collar and is adapted to sealingly engage an inner peripheral surface of the port.

Abstract: Disclosed is a combination plug and fastener for sealing in an opening in a workpiece. The combination plug and fastener includes a shank having a non-helical sealing portion and a threaded portion extending from the sealing portion. The threaded portion initially enters the opening, and engages with the internal wall of the opening providing a first seal. The sealing portion is configured to engage against the internal wall of the opening providing a second seal.

Abstract: A versatile plastic cap assembly for plugging and/or protecting fittings comprising a joined pair of capping members, one of such capping members being adapted for snap fit onto a male fitting, and the other being adapted for snap fit onto a female fitting. The capping members are initially joined together with an easily breakable connector so as to retain them in pairs until put into use, at which time the two capping members may easily be separated as, for example by pulling or twisting. The invention also includes a method of retaining identification of and temporarily protecting ends of components adapted for connection or re-connection while the ends are disengaged.

Abstract: There is provided a pressurized gas tank valve plug which can safely and effectively fit and seal a first pressurized gas tank valve and a second pressurized gas tank valve each valve having a valve stem of differing interior depth.

Abstract: A removable, expansion sealing plug has an annular seal formed of an elastic material, which seal is expanded by a fruste-conical expansion member when the expansion member is drawn into a retention member, the retention member having an outer surface with screw threads, and the expansion member being rotationally fixed, but axially movable, relative to the retention member. When installed, retention member screw threads fix the plug in position and prevent forcible expulsion from the installation hole and the expansion of the seal causes compression of the seal between the wall of the installation hole and the expansion member and frictional interference between the seal and the installation hole and between the seal and the expansion member, thereby preventing the rotation of the plug within the installation hole.

Abstract: A protecting cap 10 for a Banjo member 42 used in a Banjo type joint 40 is an integrally molded product obtained from a resin material and extending from one end to an opposite end substantially in the same plane. A first cap portion 11 is provided at the one end and a second cap portion 21 is provided at the opposite end. The first cap portion is provided with a first annular flange portion 12 and a cylindrical female member 13 having a cylindrical wall 13a which is projected coaxially with the first annular flange portion from an inner peripheral portion. The second cap portion is provided with a second annular flange portion 22 and a projecting male member 23 projecting in parallel with the same direction as the cylindrical female member coaxially with the second annular flange portion. A connecting portion 31 extends between the first and second annular flange portions. The connecting portion 31 is provided with a deforming means for positioning the first and second cap portions opposedly to each other.

Abstract: A cap capable of being used to close off an unthreaded cylindrical member and capable of being removed after closing off the unthreaded cylindrical member is disclosed. This cap has a one-piece, generally circular, relatively flexible, relatively impervious, self-supporting body. It is made of elastomeric material, preferably rubber, and is shaped so as to include between about 2 and about 12 successive levels, each level having a larger diameter than the level before it. This multi-level cap is useful for capping water or sanitary systems during testing of the systems. The cap preferably has 3 levels which fit three different standard sized pipes, one pipe at a time.

Abstract: The invention described herein pertains generally to a crosslinked plumbing tube which has at least one overmolded end (e.g. nose cone or nut) attached thereto. In one aspect of this invention, the tube is more rigid than the overmolded component while in another aspect of the invention, the tube is more flexible than the overmolded component. In either embodiment of this invention, the tube provides an all-plastic waterway for a contained liquid or gas to flow through. The degree of flexibility is controlled independently controlling the density of the tube polymer and the overmolding polymer. In one aspect of the invention, the tube and the overmolding polymer are both partially crosslinked to independent first degrees prior to the overmolding process. Subsequent to the overmolding process, the crosslinking is continued to a higher degree for both polymers.

Abstract: A Luer-Lock fitting comprising a tubular body having at one end an outer Luer cone connector coaxially surrounded by an innerly threaded attachment cup-like element, and a detachable cap sealingly fitted axially over the Luer cone connector. The cap is formed by a tubular member interposed between the Luer cone connector and the attachment element, which carries a transverse filtering barrier and whose inner end is forcedly coupled onto the outer surface of the Luer cone connector, in proximity of the bottom of the attachment element, so as to define along a substantial portion of the outer surface of the Luer cone connector an annular interspace, opening towards the filtering barrier.

Abstract: A new and improved casing thread protector that has a toroidal body of elastomer with a bore to accept a pipe end, thread engagement pads, and a metal band and clamp arrangement extending around its periphery. The bore accepts the end of a pipe with threads to be protected when the thread engagement pads are allowed a certain degree of movement due to the open position of the clamp, which pads subsequently grip the pipe within the bore when the clamp is closed. The pads, which are replaceable, come into contact with the tubular inserted in the bore when the clamp is in the closed position, isolating the tubular good from the body of the improved device and creating greater pressure on the contact points of the threads of the tubular good which increases the force required to dislodge the improved protector from the threads.

Abstract: A closure which comprises a body portion having an open end, a closed end, an inner wall and an outer circumferential wall and an insert. The insert is for engaging a container, wherein the insert is formed separately from the body portion and includes a manner for attachment to the body portion. The insert is attached to the body portion adjacent the inner wall via the manner for attachment.

Abstract: A pipe end protector includes a protector body having a shape substantially matching that of a pipe end and at least one knock-out formed integrally with the protector body. The at least one knock-out has a peripheral edge having a first portion connected to the protector body by a hinge and is deflectable from the protector body. The at least one knock-out remains attached to the protector body while hingedly deflecting from the protector body about the hinge.

Abstract: A method of routing rigid electrical conduit pipe between spaced apart enclosures includes measuring the distance between the enclosures and cutting a length of conduit pipe to the measured distance, less a bulkhead hub allowance. Bulkhead hubs are threaded onto each end of the cut length of conduit pipe, to make a conduit assembly. O-rings are contained at the end faces of each bulkhead hub. The conduit assembly is positioned between the enclosures having aligned openings. Inner hubs also having o-rings within a recess are threaded into the bulkhead hubs from the inside of each enclosure, forming a sealed electrical conduit pipe connection between the enclosures.

Abstract: A plug is used in welding a female-threaded boss into a hole through a part, the plug being installed in the boss prior to welding (preferably at the plant of the supplier of the bosses, so that they already have the plug installed when they arrive for welding). The plug has a head and a cylindrical portion extending below the head, the cylindrical portion having male threads adapted to be received by the female threads of the boss. The head has a minimum transverse dimension of at least the maximum transverse dimension of an upper surface of the boss so as to completely cover the upper surface. The cylindrical threaded portion of the plug has thread-cutting edges defined therein, configured to re-tap the threads of the boss when an installed plug is rotated in the direction necessary to remove the plug from the boss.

Abstract: An end cap comprising a hollow base section 11 which can be fitted over the end of a bar. A larger cap section 12 is attachable to the base section 11 to project radially outward therefrom. The base section 11 includes a braced intermediate cap section 13 having a slot 14 into which a bar 14a (shown in phantom) can be fitted using a hand insertable snap action. The intermediate cap section 13 includes an eyelet 15 into which a tab 16 of the cap 12 is fitted as the tab 16 is manually pulled downward as shown in phantom at 17. The enlarged cap section 12 is snap fitted in place via the downwardly projecting legs 18 being forced into the slot 14 so that the shoulders 19 engage the slot.

Abstract: An anti-seizure protection for a threaded joint or sleeve, particularly suitable for the petroleum sector, comprises a first film layer of a copper-zinc alloy anchored to the threads of the joint and a second film layer of lead anchored to the first layer. The anchoring is preferably achieved by ionic deposition.

Abstract: A pipe cap assembly with embodiments which are capable of use over a very wide temperature range and which may be cycled through temperatures varying widely from the ambient assembly temperature and also over a wide range of pressures without the need to be retightened. The embodiments of the invention include a pipe cap for sealing a pipe comprising a hollow fitting member with a first end and a second end and an annular tapered ridge extending from the first end of the first hollow fitting member and threads to attach the hollow fitting member at the first end thereof to a pipe.

Abstract: An apparatus and method for sealing and accessing the end of a fill pipe connected to a pressurized fuel reservoir. The cap has a body, a sealing member for sealing between the cap and the adapter ring, a fastening system for fastening the cap body to the end of the pipe, and a valve system for venting the pressurized gaseous media in fuel reservoir. The valve system has an inlet exposed to the pressurized gaseous media contained in the fuel reservoir, an outlet exposed to a volume external to the reservoir. A flow path extends through the cap body between the inlet and the outlet, and a valving member movably disposed in the flow path that is adapted for manual activation to selectively provide fluid communication between the inlet and the outlet.

Abstract: A hydrant protector for preventing unauthorized use of the hydrant includes an internally threaded tubular shleld around the valve stem. To prevent a collection of trash in the shield and to provide more security for the hydrant a threaded plug fits completely into the shield and against the end of the valve stem and has, in the flat exterior end, a pentagonal keyway of deep grooves. A wrench having a pentagonal tubular socket to fit the keyway will also fit the valve stem.

Abstract: A device for preventing moisture, debris or other liquids from entering a hole adapted to receive a threaded member. The device comprises an interior plug having an external thread, an exterior plug having substantially the same diameter as the hole and suitably adapted such the top surface of the exterior plug is adapted to translate toward the interior plug when the threaded member is inserted into the hole. A resilient means, such as a spring, returning the exterior plug to a position such that its top surface is co-planar with the surface surrounding the hole when the threaded member is withdrawn from the hole.

Abstract: A thread protector has a toroidal body of elastomer with a bore to accept a pipe end and a metal band and clamp arrangement extending around its periphery. The body is cut through one side to allow the body to expand peripherally. The bore accepts the end of a pipe with threads to be protected when the periphery is expanded and grips the pipe with the bore when the clamp closes the cut and shrinks the bore. To increase unit loading to force more elastomer of the body into thread grooves the bore has projections for gripping pads, or is recessed radially to produce gripping pads. The pads, which may be replaceably attached, reduced area increases deformity under clamping pressure and increases the force required to dislodge the protector from threads. The metal band is removable from an open peripheral groove or an optional arcuate tunnel partially encircling the pad body.

Abstract: A ceiling fan control switch box, which includes a casing, a pull switch received inside the casing and having a hollow screw rod extended out of a wire hole on the casing and fixed in place by a screw nut, an angle pipe having raised ribs on the inside fitting around the screw nut to stop water from entering the wire hole, a fan motor forward/backward switch received inside the casing and having a switching lever extended out of an opening on the casing, and a flexible water sealing cap fastened to the casing and mounted around the switching lever to stop water from entering the casing through the opening without affecting the switching operation of the switching lever.

Abstract: A liquid anticorrosion composition adapted for application to ferrous tubular goods is provided comprising an aqueous solution of cyclohexylammonium benzoate and a benzoate salt, which is preferably prepared by reacting cyclohexylamine with excess sodium benzoate in an aqueous alcohol solvent. A sealable thread protector end cap which protects the precisely machined threads from physical abuse and which isolates or seals from the environment the corrosion inhibitor composition is also provided.

Abstract: A method of making a bi-metal pipe section, and especially reclaiming a used or damaged pipe section by making it into a bi-metal pipe section which resists corrosion. The bi-metal pipe section is used in constructing a pipe line or production tubing that resists corrosion at the pipe coupling where corrosion is especially prevalent in fluid conduits. The bi-metal pipe section is fabricated by first removing an annular marginal end of a length of the pipe section of the prior art, to provide a long length of pipe having a partially threaded cut end opposed to an opposite end. Next, an annular short length of pipe is axially aligned and butt welded to the cut, end of the long length of pipe. The short length of pipe preferably is an annular metallic alloy having greater resistance to corrosion respective to the long length of pipe.

Abstract: An apparatus for lubricating pipe joints is described which includes a generally cylindrical plug adapted to fit into a female box connection of a length of pipe. The plug has a first end, a second end, a circumferential exterior surface and a blind interior bore which extends through the first end and terminates short of the second end. The exterior surface has a network of channels. A plurality of lubrication passages extend through the plug from the blind interior bore to the network of channels on the exterior surface. When lubrication compounds are pumped under pressure into the blind interior bore, the lubrication compounds pass through the lubrication passages into the network of channels on the exterior surface of the plug thereby thoroughly coating the female box connection with lubricant. An end cap covers the first end of the plug. The end cap has a flange that extends beyond the circumferential exterior surface.

Abstract: An assembly for closing a pipe mouth comprising a mouthpiece connected to a pipe mouth, and a stopper having an axially projecting portion which is adapted for insertion into the mouthpiece. The stopper includes a lock which is operable by a key, and such that in the released position, the stopper can be moved into and out of the mouthpiece with the key securely connected to the lock, and in the locked position the stopper is retained in the mouthpiece and the key may be removed. The lock includes a magnetic control means which permits the lock to be moveable between the released and locked positions only when the stopper is inserted in the mouthpiece.

Abstract: A composition for inhibiting corrosion. The composition contains a mixture of a dessicant and a vapor-corrosion inhibitor. The mixture of dessicant and inhibitor is synergistic: the service life of the corrosion inhibitor is significantly longer when so used than when used alone or in in the presence of but not physically mixed with the dessicant.

Abstract: A security hydrant cap having a domed body adapted to be removed only with a specialized tool, and a slip ring surrounding substantially all of the body and mounted thereto so as to be free to rotate about the body. The slip ring and, preferably, the body are formed of stainless steel. Preferably, the slip ring and body are made of a 400 series stainless steel, heat treated to a Rockwell "C" hardness of approximately 43-47.

Abstract: A casing pipe thread protector which includes a body member molded of flexible material, such as urethane, with memory/resiliency characteristics, having a central opening through which a pin end of a length of casing will fit, the body member in a molded slightly open position, to accommodate the casing, a strap set within a channel formed around the annular wall of the body member, the strap having a locking member at its first opposing end, and an adjustment screw, so that the strap can be adjusted to various locking tightness. Upon sliding the pin end of the casing in the central opening, the locking member is moved to the closed position, tightening the body member around the pin, so that the threads are completely encircled around the pin end.

Abstract: A pre-installation liquid level gauge assembly is provided which comprises a fitting with a threaded outer surface and a thread protector friction fit over the threaded outer surface. The thread protector comprises a sleeve portion and a shoulder portion extending radially inwardly to protect the end of the fitting and prevent the sleeve portion from sliding up the fitting to expose some of the lower threads. The shoulder portion defines a hole that is larger than the outer diameter of the passage in the fitting so that the thread protector does not interfere with the insertion of an extension piece into the passage in the fitting. The thread protector includes a tab and a scored line extending from the tab to the edge of the hole defined in the shoulder portion such that the tab can be pulled to totally split the thread protector to allow ready removal of the thread protector from the fitting.

Abstract: A corrosion inhibiting system for protection of the threads of oil country tubular goods, including a vapor phase corrosion inhibitor and a liquid phase corrosion inhibitor in water solution, and a transparent thread protector. The threads may be inspected for corrosion without removing the thread protector or the corrosion inhibitor, and the corrosion inhibitor may be left on the threads for use in combination with an anaerobic sealing compound.

Abstract: A pipe-end protector depending on its being used as a cap or plug comprises a metal housing with a sleeve-like, elastomer inset or a metal plug with a sleeve-like, elastomer cover. To increase the strength of the protector, the metal housing or the metal plug--which always are tubular--are provided at their outer end with a flanged or folded, preferably rolled edge. To facilitate manufacture of the protector, the inset or the cover may consist of at least two part-cylindrical mating case-components.

Abstract: A tube closure of elastomeric material having specific properties has an open end, a closed end and a side wall defining a tapering outer frustoconical surface. The side wall has a predetermined thickness at its thinnest point, which is determined in connection with the angle of taper of the outer frustoconical surface and the properties of the elastomeric material to provide a seal with high integrity over a range of tube sizes. The closure has a radially extending flange of predetermined thickness by which the closure can be removed from a tube by a pushing force. The closure has an inner surface for sealing against an outer surface of other tubes.

Abstract: A device for securing written information to tubular goods which have a cavity at one end. The apparatus has of a closure, whereby an end cavity of a tubular good is closed. An elongate container is secured to the closure, such that the container extends into the end cavity when the closure is placed on the end of the tubular good.

Abstract: A matching seal element for closing an introduction opening in a cable fitting, tubing or similar elongated article including matching the diameter to the diameters of introduced articles, by a terminal wall which is formed of concentric, removable sealing rings. The matching seal element is longitudinally divided and may be tightly clamped on sockets or pipes or on a dowel-like expandable receptacle which is spread in openings.

Abstract: A protector for the threads of a pipe-end, comprises a tubular member including a longitudinal portion and a curved end portion bent substantially 270.degree., the curved end portion including an edge disposed a distance away from the longitudinal portion; and an elastomeric sleeve disposed co-axially and substantially co-extensively relative to the tubular member. The sleeve is adapted to engage the threads of the pipe-end. The sleeve includes an end portion disposed between the edge and the longitudinal portion, the edge clamping the sleeve end portion against the longitudinal portion, thereby securing the sleeve to the tubular member. The sleeve includes a radially extending annular flange disposed outside the curved end portion for engaging an end portion of the pipe-end.

Abstract: A device for protecting the threads of a well casing pipe which comprises a body constructed from flexible material and having resilient characteristics, wherein the body has a central opening sized to fit about the threads, a passageway extending through the body concentric to the central opening, a locking section having a cavity connecting to the passageway, a strap constructed from a high tensile strength fiber web material and positioned in the passageway with its opposite ends extending into the cavity, and a locking means operatively attached to the opposite ends of the strap to tighten the strap about the body to the degree necessary for the body to contact the threads.

Abstract: For gasketing slip joint applications, a method is disclosed for clean pipe laying involving shrink wrapping the bells and spigots of pipes and conduits prior to their installation in the field and circumferentially cutting an aperture in the shrink wrap at the end of the pipe to permit insertion of the end of a mating pipe. The above procedure provides a clean environment so that contaminants do not enter the pipe and eliminates the cleaning step normally necessary when joining or connecting water, sewer, or drainage pipe in an excavated trench. In the case of water, sewer, or drainage pipe, the O-ring seal of the bell is lubricated and then this end of the pipe is shrink wrapped, as is the mating tapered pipe to be inserted into the bell. The shrink wrap prevents contaminants from the excavation or otherwise from entering into either of the pipes to be joined, thereby eliminating joint failure due to contamination during installation as well as pipeline contamination in general.

Abstract: A device consisting of a plug and cap which provides a means of sealing, accounting for, and correct replacement of lines and fittings on the internal combustion engines and their associated components and controls removed, or separated during maintenance and testing.

Abstract: The present invention is a sewage clean-out line cover and removable cap made of Ultra High Molecular Weight Polyethylene. The interior of the cover carries a plurality of rows of upwardly inclined teeth, the rows being parallel and unconnectable to each other. The teeth comprising each row have a pitch to depth ratio of approximately 1:1. The ratio of the slope of the upper surface of the teeth to the lower surface is 1:1, thus providing a tip for installation over the open end of the upstanding clean-out pipe which tip is flexible for pushing the cover over the open end of the clean-out pipe due to the inherent lubricity of the UHMWPE but which resists removal of the cover by the tips folding over to increase friction against the clean-out pipe outer surface. The cover is usable with cast iron or PVC pipe or any other presently known material used to form sewage clean out pipes.

Abstract: A pipe thread protector device for protecting the threads at the end of a casing section or the like, and including an elastomeric shoe having a cavity or recess in one side thereof for receiving the threaded end of the casing, and further having an elongated generally cylindrical constriction sleeve made of braided or interwoven wire elements connected to the shoe. One end of the constriction sleeve is embedded in this shoe and the other carries a plurality of tensioning tongues. The constriction sleeve construction causes it to undergo a reduction in diameter when it is placed in tension, and an enlargement in diameter when placed in compression.

Abstract: A gas-tight closure device for the connecting ends of tubes for biomedical fluid-transporting apparatus, particularly haemodialysis lines, which are sterilized by means of sterilizing gas, includes a tubular connector defining an internal Luer cone and a cap which is fitted to the connector. The hermetic closure of the connector by the cap is effected by means of complementary conical surfaces for the mutual force-coupling of the outer lateral wall of the connector and the inner wall of the cap.

Abstract: A closet flange protector is set forth to protect and overlie a water closet flange and test plugs during a construction proceeding. The protector includes an inverted cup-shaped member including an upper disk portion provided with spaced diametrically opposed wells. A downwardly depending skirt depends downwardly from the disk and associated wells terminating in a continuous conical skirt. The conical skirt and wells include aligned through-extending apertures for receiving diametrically opposed threaded bolts. The bolts include threaded fasteners received within the wells to secure the well to a floor structure and overlie an associated water closet flange.

Abstract: A dust plug adapted to be retained by and sealed to the O-ring in a fluid fitting. The plug has a spherical insertion end and a shoulder remote therefrom and is retained by the O-ring between the bead and the shoulder on insertion of the plug with the shoulder also acting as a stop against the O-ring to prevent over insertion.

Abstract: An end cap and a method for making and installing the same for covering terminal ends of cylindrical objects to provide protection against water and other elements.

Abstract: A pipe-end protector has a unitary body (3) bored for accommodating the pipe-end (1) to be protected and having an interior cavity connected through a one-way valve and a filling duct (6) with an exteriorly accessible filling connection, a metal ring (4) preventing the outwards expansion of the body (3) made of an elastic and strong plastic material. The metal ring (4) is a closed ring completely embedded in the plastic and sufficiently flexible for following elastic deformation of the plastic body, the body portion (10) outside said ring (4) having a sufficient thickness for providing elastic thrust protection, an expansion cavity (8) being defined by the inner wall of the ring (4), the filling duct (6) being situated in a depression (7) formed in an end face (11) of the body (3).