Abstract: A single-piece sealing cover 1, made of plastic, especially for sealing an opening 2 in a support 3, includes a basic body 5, which is joined with a circumferential collar 8, which is designed in the shape of a U, with an inner leg 10, an intermediate region 12 and an outer leg 14, and with at least one stop connection 16 at the outer leg 14. The sealing cover is characterized in that the outer leg 14 and the basic body 48 can be locked together by means of the stop connection 16, after pre-assembly V, by insertion into the opening 2 and after final assembly E and an outer collar 24 and the disk-shaped basic body 5 extend in parallel after final assembly E.

Abstract: An insertion shoe for retrofitting an undersea pipeline to permit passage therethrough of a scraper includes a plate sized to cover an opening in a branch connection of the pipeline and an inner surface structured to match the inner surface surrounding the opening. The insertion shoe can be installed in the branch connection to protect the opening without lifting the pipeline above water, so that the scraper may pass through without becoming jammed.

Abstract: A plug for closing a hole in a structural member includes a shank having an upper end with a recess extending toward the lower end of the shank. The recess divides the upper end into a central portion and an outer, deformable portion radially outwardly spaced from the central portion by the recess. The deformable portion has an engagement region deformable by and sealingly engageable with a wall of the hole when the shank is pressed into and retained by the hole. The flange extends radially outwardly from the outer, deformable portion. The engagement region has an outer diameter larger than an inner diameter of the hole, whereby the material of the engagement region can be deformed into the recess when the shank is pressed into the hole and the wall of the hole forms a groove in the engagement region thereby retaining the shank in the hole.

Abstract: Natural gas pipe repair fittings and methods for using same allow safely welding a pipe repair fitting over a leaking natural gas service line “T” fitting. A bottom half and a top half are welded together to form a hollow cylinder having hemispherical ends with semicircular pipe notches in them. A hollow vertical pipe has one end welded over a pipe hole in the middle of the top half of the cylinder. A hemispherical cap is affixed to the opposing end of the vertical pipe. The cap has a cap hole in its top. A method for installing the natural gas pipe repair fitting by enclosing a leaking natural gas service line “T” fitting with the natural gas pipe repair fitting and welding the natural gas pipe repair fitting to the gas main line is also disclosed.

Abstract: An apparatus and a method for controlling oilfield production to improve efficiency includes a remote sensing unit that is placed within a subsurface formation, an antenna structure for communicating with the remote sensing unit, a casing joint having nonconductive “windows” for allowing a internally located antenna to communicate with the remote sensing unit, and a system for obtaining subsurface formation data and for producing the formation data to a central location for subsequent analysis. The remote sensing unit is placed sufficiently far from the wellbore to reduce or eliminate effects that the wellbore might have on formation data samples taken by the remote sensing unit. The remote sensing unit is an active device with the capability of responding to control commands by determining certain subsurface formation characteristics such as pressure or temperature, and transmitting corresponding data values to a wellbore tool.

Abstract: A guide plate for a lug type closure arrangement is provided with a stepped profile to aid a user move the head of the closure arrangement relative to the hub from a locked to an unlocked position. A marker pin is provided to align with the guide plate at various stages in the unlocking sequence. The relative positions of the marker pin and the guide plate indicate to the user the relative positions of the lugs on the head and the lugs on the hub.

Abstract: There is an object to provide a technique of forming a proper abrasion resistance layer by a thermal spraying and fusing of a self fluxing alloy. The object may be solved by cutting the pipe body along a curved face that is perpendicular to a plane including a central axis of the pipe body and that extends not to cross the inlet hole and the outlet hole but to include a part of the central axis. Thus the pipe body is divided into a first partitioned part having at least one of the inlet hole and the outlet hole, and a second partitioned part. An abrasion resistance layer is then formed on the inner surface of at least the outer bent portion of the pipe body by a thermal spraying and fusing of a self fluxing alloy. Thereafter, the first partitioned part is fitted into the second partitioned part for welding to obtain a bent pipe according to the present invention.

Abstract: A method of repairing a leak at a branch pipe location in a manner that it is not necessary to drain the water or the liquid from the main pipe at which the repair is being made. The end of the existing branch pipe is removed from a connector at the main pipe, and a temporary plug with an elongate handle is used to branch the connector opening. With the opening remaining closed, an intermediate connector is placed over the elongate handle and welded to the connector, after which the plug member is taken from the opening and a permanent plug put in the upper end of the intermediate connector.

Abstract: A cover having first and second halves is used in combination with clamps to cover elongated items such as wires and pipes. The first and second halves cooperate together to form a cavity that receives the elongated items and clamps. The halves may be formed with identical cross sections so that they may be fabricated from a single mold. The halves may snap together or be connected with a fastener. Each cover half includes a pair of opposed locking ledges that form slots sized to receive the opposed feet of the clamp. The clamps are installed by angling the clamps with respect to the longitudinal axis of the cover and pressing the clamp against the base wall of the cover. The clamp is then twisted to a position substantially perpendicular to the longitudinal axis of the cover. The twisting motion simultaneously moves the feet of the clamp under the locking ledges of the clamp cover.

Abstract: A sealing plug seals a hole portion formed in a panel. The sealing plug includes a flange portion for contacting a peripheral edge of the hole portion, a cylindrical body connected to the flange portion, a straight portion formed on an outer peripheral surface of the cylindrical body along an axis line thereof, and a step portion projecting from the outer peripheral surface of the cylindrical body at a side opposite to the straight portion. The step portion abuts against the peripheral edge of the hole portion when the straight portion passes through the hole portion to allow the cylindrical body to incline with respect to a center line, and holds the peripheral edge of the hole portion together with the flange portion. A neck portion having a diameter substantially the same as an inner diameter of the hole portion is formed between the step portion and the flange portion.

Abstract: A plug for a pipeline fitting is provided and includes a cylindrical body having an annular sealing groove, an O-ring fitted in the annular sealing groove, an expanding plate having an outer edge inserted into an annular locking groove of the pipeline fitting, and an expanding device connected to a plugging machine to insert the expanding plate into the locking groove of the fitting. The expanding plate is divided into two half plates and has a central opening with a minor axis in the direction of expansion and a major axis perpendicular to the expansion direction. The expanding plate has elongated holes and pins formed at positions symmetrical with respect to the dividing line of the expanding plate. The cylindrical body has threaded holes formed at positions corresponding to the elongated holes of the expanding plate. Screws are screwed into the threaded holes through the elongated holes to couple the expanding plate to the cylindrical body. The cylindrical body has a central circular recess.

Abstract: A handhole cover includes a body adapted to cover a handhole. The body has a front surface, a rear surface, and a peripheral edge. Engagement members protrude rearwardly and outwardly from the rear surface adjacent to the peripheral edge. The engagement members are adapted to engage a peripheral edge of the handhole and are spaced about the peripheral edge to provide a secure engagement of the body in the handhole. At least one of the engagement members is a rotatable locking member having a helical engagement surface. The rotatable locking member is selectively rotated between a locking position and a release position.

Abstract: A plug for a pipeline fitting is provided and includes a cylindrical body having an annular sealing groove, an O-ring fitted in the annular sealing groove, an expanding plate having an outer edge inserted into an annular locking groove of the pipeline fitting, and an expanding device connected to a plugging machine to insert the expanding plate into the locking groove of the fitting. The expanding plate is divided into two half plates and has a central opening with a minor axis in the direction of expansion and a major axis perpendicular to the expansion direction. The expanding plate has elongated holes and pins formed at positions symmetrical with respect to the dividing line of the expanding plate. The cylindrical body has threaded holes formed at positions corresponding to the elongated holes of the expanding plate. Screws are screwed into the threaded holes through the elongated holes to couple the expanding plate to the cylindrical body. The cylindrical body has a central circular recess.

Abstract: A plug structure of a liquid drainage installation includes a sealing ring clamped between two combined half bodies. The outer periphery of the sealing ring protrudes outward from the outer periphery of the two half bodies. Thus, the protruding dimension of the sealing ring may be adjusted by the clamping extent of the two bodies, thereby compensating the wearing amount due to usage. The two half bodies may be separated easily, thereby facilitating replacing the sealing ring.

Abstract: A duct access door for use with ducts that carry cooking vapors and greases is a “sandwich” type door that has inner and outer plates, the inner plate being positioned inside the duct and the outer plate outside the duct with a heat resistant gasket attached to the outer plate. Strategically located bolts draw the plates together at their corners to provide compression of the gasket and prevent leaking of vapors and greases.

Abstract: A plug structure of a liquid drainage installation includes a sealing ring clamped between two combined half bodies. The outer periphery of the sealing ring protrudes outward from the outer periphery of the two half bodies. Thus, the protruding dimension of the sealing ring may be adjusted by the clamping extent of the two bodies, thereby compensating the wearing amount due to usage. The two half bodies may be separated easily, thereby facilitating replacing the sealing ring.

Abstract: An elliptical expansion plug for plugging elliptical openings. The elliptical expansion plug has a concave inner surface and a convex outer surface sized to allow hand-fitting within an elliptical hole to be plugged. The size of the elliptical expansion plug is such that the elliptical expansion plug generally matches the shape of the elliptical opening to be plugged, and further sized to provide a continuous seal between the outer edge of the elliptical expansion plug and the inner surface of the elliptical opening to be plugged after installation of the elliptical expansion plug. When the convex outer surface is eliminated by deforming the elliptical expansion plug with tools such as a hammer and punch until the convex outer surface is flat, the outer edge of the elliptical expansion plug comes into continuous contact with, and provides a continuous seal against, the inside circumference of the elliptical opening to be plugged.

Abstract: A stopper device for blocking an aperture in a pipe member wall, a sheetrock wall and so forth, the stopper device comprising a substantially planar cap member with top and bottom sides, the top side further including a plurality of strengthening ribs with even-tapered ends extending along the surface thereof, a stem projecting from the bottom side of the cap member, the stem further including at least a pair of radially-spaced vanes extending along and projecting from its longitudinal axis, and a plurality of spaced apart axially-spaced circumferential webs each projecting radially from the longitudinal axis of the stem, and each being parallel to one another.

Abstract: An expandable repair fitting for sealing and reinforcing polyethylene pipe includes a single or multiple middle section(s) that receives two end sections. The three sections are split into halves in order for the fitting to encapsulate the entire pipe to be repaired. Electrical heating elements in the form of wires are embedded within each section. The specific location of the wires causes the jointed halves to melt together when an electrical source is supplied to the wires, as well as causing a portion of each end piece to melt about the outer pipe diameter, thereby forming a sealed repair fitting. A portal is provided on the middle section to allow pressure testing of the integrity of the fitting. In a second embodiment, the repair fitting does not encapsulate the entire pipe circumference.

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 swing gate valve for closing a lateral discharge opening in an elongated conduit includes a swing gate shaped to fit around the exterior of the conduit in an open position adjacent the lateral opening. A pair of pivotable swing arms are connected to the swing gate on opposite sides of the conduit, and are operated by an air ram to swing the gate to move it to a closed position over the discharge opening to an open position.

Abstract: The improved water drain pipe test plug device includes an elastomeric solid drain plug which is resilient and flexible and is in the form of a disc. The disc has a front surface and an opposite parallel rear surface connected thereto by a peripheral annular rim. The disc has a leading end and a trailing end, the rim at the leading end sloping rearward and inwardly and the rim at the trailing end being parallel thereto. An arcuate spacing plate is connected to the disc front surface and a pressure plate is connected to the disc's rear surface. The pressure plate, in turn, is connected to a generally laterally extending elongated lever arm having a slot extending up therethrough. A pivot arm is rotatably connected to and depends below the lever arm, terminating in a bottom foot which is adapted to support the device on the lower edge of a drain pipe access hole.

Abstract: Tribo-electrification of conveyed particles in a pipeline of a pneumatic conveying system is reduced by electrically isolating at least one portion of the inner surface of the pipeline, preferably the concave interior surface of at least one elbow. The isolated portion acquires an electric charge of opposite polarity to that of the conveyed particles.

Abstract: A down spout clean out adapter (10) connectable to a bottom distal end of a leader (18). The down spout clean out adapter (10) having an adapter (12) which has an adapter upper front (12UF) having an adapter upper front opening (12UFA) and an adapter upper left (12UL) having an adapter left guide and an adapter upper right (12UR) having an adapter right guide and an adapter upper back (12UB). The down spout clean out adapter (10) further has a door (16) which has a door top (16T) and a door front (16F) and a door back (16B) and a door bottom (16A) and a door left (16L) and a door right (16R). The door (16) is removably positionable between the adapter left guide and the adapter right guide.

Abstract: A removable sealing plug device for protecting the interior of a refrigerant compressor from dust, dirt, and corrosion during storage and/or transport of the compressor before it is assembled into a refrigerating system, including a plug element made of a rubber material and having a body portion adapted to being sealingly fitted in an inlet and/or outlet port of the compressor and a columnar head portion formed in an upper face of the body portion, and a base plate element having a through-bore in which the columnar head of the plug element is fitted with an interference fit, the base plate being secured to the outer circumference of the compressor, by using an existing threaded hole and a screw bolt, to hold the plug element between the base plate element and the outer circumference of the compressor.

Abstract: An access plug flange is provided for inspection ports, for example on high temperature chemical processing vessels or pipes. The plug flange prevents heat loss through an access port formed in an insulative lining covering the vessel or pipe. The plug flange further does not deteriorate or lose its sealing effect despite its location near relatively high temperatures.

Abstract: A plumbing fitting comprising a test closure plug for the free end of a trap bushing mounted in the center port of a T-fitting constituting a part of a soil pipe and vent pipe assembly of a plumbing system the free end of the trap bushing is provided with an adapter having an adapter nut and washer. The washer is removed and the plug is inserted in the adapter opening. The plug is configured to close the adapter opening and make a seal therewith when held in place by the adapter nut. The plug enables pressure testing of the plumbing system or the maintenance of a head of water therein. Upon installation of a fixture with a trap, the nut is removed, the plug is removed, the adapter nut and washer are then used in common trade fashion to connect the trap to the trap bushing in fluid-tight fashion by way of a slip joint. The plug can be reused.

Abstract: A corrosion-resistant test port kit is specially adapted to be retrofitted into existing duct work for use in testing or monitoring gases and vapors in an exhaust air transfer system that is designed to handle a wide range of potentially corrosive exhaust streams found in a wide variety of industrial applications. The apparatus provides the ability to install the test port kit in existing duct systems quickly and easily to monitor the gas stream without having to disassemble the duct system or interrupt its use for long periods.

Abstract: The disclosure describes a sealing device for sealing two adjacent wireway sections positioned in an end-to-end relation. Each wireway section has a lower channel portion for receiving cable and a cover movable between an open position for placing cable in the wireway section and a closed position for covering the cable. The sealing device includes a sealing plate, a seal on a lower surface of the sealing plate, and a connector for connecting the sealing plate to the lower channel portion of at least one of the two wireway sections for pivotal movement of the sealing plate between an open position in which the covers of the wireway sections can be lifted, and a closed position in which the sealing plate extends transversely across the wireway sections over the covers with the seal in engagement with the covers. The sealing device also includes a quick-operating fastening device for releasably connecting the sealing plate to the lower channel portion of at least one of the two adjacent wireway sections.

Abstract: A solid, steel plug includes a disc-shaped plug portion and a disc-shaped flange on one of the plug portion and extending radially outwardly therefrom. The plug can be advanced into an oil gallery access hole in a cylinder head of an engine to seal the hole. A tool is disclosed for urging the plug into the hole. The tool includes a base that is configured for flushly fitting on the head over the access hole, and a bolt that is threadably engaged with the base for urging the plug into sealing engagement within the hole.

Abstract: A drainage pipe for use with a basement waterproofing and drainage system includes a U-shaped lower section, the lower section having a base, first and second side portions, the first and second side portions angling away from a line perpendicular to the base and outward and away from the base. The edges of the upper section are folded over and downward to receive and hold the side portions of the lower section. A substantially L-shaped cover plate is bent upwards at an angle of about 90 degrees and has attaching means for attaching the second section to a basement wall.

Abstract: A breakaway gutter (30) comprising a flexible trough (32) having a rearward edge (34) permanently connected to a building (36) proximate an overhanging edge (38) of a roof (40) of the building (36). Structures (42) are connected to the building (36), for retaining in a detachable manner a forward edge (44) of the flexible trough (32), so that the flexible trough (32) will be in a position to receive water from the roof (40) when it rains. The forward edge (44) of the flexible trough (32) can disengage from the retaining structures (42) by pressure exerted by the weight of snow on the roof (40) in winter, to prevent damage to the flexible trough (32).

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 apertured drainage pipe including a first section being inverted V-shaped and a second section, the second section being substantially flat, the second section having a first turn-up and a second turn-up to receive the first section. The drainage pipe is used with a drainage apparatus for a basement having a outer wall and footer unit and a floor including the outer wall and footer unit having an open area excavation at the inner margin thereof extending from the lower margin of the wall footer unit up to a level above the footer, the outer wall having vertically extending openings therein that are aligned, the drainage apparatus including an excavation in which the drainage pipe is placed and spaced from the footer, the outer wall draining water therefrom into the excavation, the drainage pipe enabling water to flow therethrough from the excavation, and gravel filler to fill in the excavation around the drainage pipe and support the floor.

Abstract: A structure for blocking an oil supply hole of a kick idle gear bearing portion is provided in an internal combustion engine of a type wherein a kick starting mechanism is removably mounted for transmitting an input from a kick arm to a crank shaft by way of a kick idle gear rotatably supported by a counter shaft. When the kick starting mechanism is removed and a self stating mode is set, an oil supply hole of a bearing portion in the state that the kick idle gear of the counter shaft is removed is blocked by a blocking member having a slip preventive function. The blocking member includes an insertion portion inserted in the oil supply hole, and an abutment portion integrally formed with the insertion portion, which is abutted on the outer peripheral surface of the bearing portion.

Abstract: Trunking, in particular trunking for electrical apparatus, includes a body with inwardly directed lips and a cover adapted to be snap-fastened to the lips. The trunking further includes a cover jointing member extending transversely between the lips of the body to cover the end of the cover. At one end at least it is provided with a latch for locking it to the respective lip of the body.

Abstract: A method and apparatus for forming inspection apertures through the insulation cladding of a containment vessel by forming an opening partly through the cladding which is thereafter lined by an adhered liner. The depth of the liner is less than the thickness of the cladding, thereby precluding heat transfer thereacross. The removed plug of the insulation is then fixed by an adhesive spray about its exterior, and once cured can then be replaced into the liner to recreate substantially identical insulative qualities. On replacement, a bridging cover is adhered across the liner to maintain the weather integrity of the cladding. This cover may be removed on successive occassions to allow for repeated inspection of the vessel walls.

Abstract: A cover for a handhole of a utility pole is provided. The cover includes a plate with a bolt passing therethrough and a back bracket threaded to the bolt. The back bracket is configured to engage an inwardly extending lip formed on a periphery of the handhole opening. A plate includes a recess which is directed inward towards the back bracket. The bolt passes through a hole in a floor of the recess. The recess inhibits unauthorized access to a head of the bolt. A spring is interposed between a head of the bolt and the floor which biases the back bracket toward the cover. The back bracket remains in contact with the inwardly extending lip of the handhole opening unless the head of the bolt is depressed, compressing the spring to allow the back bracket to be rotated.

Abstract: A protective cover assembly for electrical cables to be extended along a wall or floor surface includes interfitting U-shaped clip members and cover strips having complementary flange portions between their respective sidewalls, and the sidewalls of the clip members are provided with cable retainers to temporarily retain the cables in place during installation and spacer tabs to maintain uniform spacing with a baseboard or other trim. A re-entry tool is provided for positive separation or release of the cover strip from the clip members and specially formed slots are provided in the bases of the clip members for insertion of different types of anchor fasteners.

Abstract: An apparatus is provided for an access port through an insulative coating or vapor barrier wrap on tubing in cold chemical processes. The apparatus seals against entry of vapors and moisture into the access port which might accumulate there and freeze, causing ice build-up and preventing access of testing probes to the tubing. The apparatus also has an insulative effect against transfer of external ambient heat through its structure to the tubing.

Abstract: An inspection plug assembly includes an elastomeric outer sleeve which may be compressed into the skin of an insulating jacket for forming a seal between the assembly and the jacket by mechanically anchoring the assembly to the jacket, without requiring the use of adhesives. The plug includes pull tabs to facilitate removal of the plug from the sleeves. A lanyard may be attached to the plug and the jacket without disturbing the sealing function.

Abstract: A three-way elbow for connection between a trap and a waste line is provided with a valved access ending in a plug. Removal of the plug allows attachment of a first end of a hose in its place. The second end of the hose is held above the water level of a sink by attachment to a board that fits over the sink. A snake inserted through the hose is directed by passageways in the elbow to the waste line. A container is mounted between a faucet for the sink and the second end of the hose so that disinfectant in the container can be carried into the hose. Brushes are mounted in the second end of the hose so as to aid in cleaning the snake as it is withdrawn.

Abstract: A duct fitting for joining a plurality of duct sections of a wiring duct network comprising a fitting base and a fitting cover having corresponding tabs and slots for providing a simple assembly operation for fixing the cover to the base. The fitting base has tabs formed on the marginal edges of its sidewalls which cooperate with slots formed on flanges of the cover. The sidewalls of the base are flexed inwardly and then released to engage the tabs with the slots of the cover.

Abstract: A device for joining trays includes a transverse portion and a sheetlike buttstrap. The transverse portion is flush with a transverse end edge of a lid section of a tray and engages the side walls of a base section of the tray by end walls which may be provided with projections or with hook-shaped legs. The transverse portion has retaining holes and is provided with a center tab extending longitudinally and which is covered by the lid section. The sheetlike buttstrap covers the transverse portion of the device and the part of the lid section covering the center tab. The sheetlike buttstrap is provided with resilient protuberances mating with the retaining holes.

Abstract: A pipe fitting cover is provided for covering a pipe fitting which has been covered with insulation. The pipe fitting cover is a flexible, resilient, sheet formed in a shape generally corresponding to the external shape of the pipe fitting and larger than the external shape of the pipe fitting to accommodate insulation between the pipe fitting and the pipe fitting cover. The sheet has a hole intermediate the ends of the sheet. A clear window insert is secured in the hole whereby insulation covered by the pipe fitting cover can be viewed with the pipe fitting cover in place on the pipe fitting.

Abstract: An access plug flange and sealing plug are provided for inspection ports on chemical processing vessels. The plug flanges are easily installed, while remaining firmly and securely in place; the sealing plug is also easily removable from the flange for inspection purposes.

Abstract: An apparatus for blocking the openings of a branched pipe (2) in a branched portion of a pipeline (1) prior to lining the inner surface of the pipeline (1) with a tubular lining material (100) for maintenance/repair or reinforcement purposes includes a spring-biased plug-housing assembly which carries a plurality of plugs for blocking the branch pipe openings. The plugs are installed one at a time into the branch pipe openings and are retained in the openings by a friction fit. The plug-housing assembly dispenses one plug at a time without the possibility of inadvertent dispensing of the remaining unused plugs. The plugs have cut-away portions in the outer periphery thereof, which cut-away portions cooperate for storage and installation purposes with struts on the plug-housing assembly.

Abstract: A resilient plug for sealing drilled holes in a solid surface to prevent the discharge from the hole of fluids or chemicals. The plug is of tubular shape and has a flat top surface and a tubular side wall from which a plurality of sealing ribs project to engage the side wall of a drilled hole. The ribs prevent the passage of fluids or chemicals from the hole.

Abstract: A compact, easily used, high quality sealing plug for use with ultrasonic testing equipment which incorporates a single annular body with an indented diaphragm portion, two lips, an annular vertical wall extending upwardly from said indented diaphragm portion of said single circular body with two annular lips extending outwardly therefrom, one at the upper end of said annular wall and the other therebelow so that when said seal is in use, the upper lip will maintain a position above the insulation material in which the seal is placed, while the lower lip will be below said outermost surface, both lips counteracting each other to maintain tension therebetween and the present invention from becoming unintentionally dislodged from its location. Alternative embodiments of the present invention are also disclosed which include alternative lip arrangements for alternative sealing needs and desires.

Abstract: A pipe fitting having an end wall and forming a port radially inwardly of the flange to align with the wall opening; an annular elastomeric seal positioned to be compressed between the wall and the work body wall for preventing leakage of fluid outwardly from the wall opening; a test cap unit spaced from the seal and aligned therewith to close off the opening and fastener structure extending through the cap unit and adjustably attached to the fitting for urging the cap unit into sealing relation with the inner side of the work body wall, about the opening, when the seal is compressed as aforesaid, whereby the cap unit then closes off the opening so that test liquid under pressure can be filled into the fitting to test for leakage; the cap unit having annular sealing structure facing toward the annular seal for sealing engagement with the wall inner side, the sealing structure comprising an elastomeric ring and the cap unit includes a plate carrying the ring, the ring consisting of resiliently deflectable mate