Abstract: Closing-off plug for pipe ends, which pipes are filled with highly pressurized liquid or gas. The closing-off plug comprises a cylindrical closing cap (1) with a tapering thin ring-shaped wall end (2), a cylindrical block (3) with a conical rim (4) and a bolt with bolt head (8) and threaded stem (5) of high quality steel. The cylindrical block (3) is retracted in the ring-shaped wall end (2). Sharp ring-shaped ribs (6) are pressed into the inner wall of the pipe.

Abstract: A cup holder assembly includes a housing having a track member, wherein an insert, having first and second sides, is adjustably received on the track member in a vertical manner. The insert is adapted to be positioned within the housing in either an upright or inverted position. The insert thereby provides first and second storage configurations relative to the upright and inverted configuration of the insert within the housing.

Abstract: A lid for a paint can having a lid base which is threadably mounted to a mating ring dimensioned to overlie the can chime on the paint can. A seal constructed of a flexible and compressible material is carried by the mating ring and, upon rotation of the mating ring relative to the lid base between an open and a closed position, the mating ring compresses the sealing ring against the can chime to complete a fluid seal.

Abstract: A sealing cover assembly that provides a liquid-tight seal around the upper perimeter of an underground utility box includes an upper lid element, a lower lid element, and a resilient, elastomeric sealing element sandwiched in between. The sealing element includes a peripheral sealing lip that mates with a peripheral surface of the upper lid element, and a sealing flange that seats in a peripheral groove or slot in the lower lid element. The peripheral lip bears against an interior surface of the underground box to form a seal The underside of the lower lid element includes fastening elements for securing an accessory holder to the underside of the cover assembly. A central fastening assembly secures the upper and lower lid elements together with the sealing element captured therebetween.

Abstract: A repair process for a puncture through a plumbing pipe, the process initiates with a step of machining a puncture hole to a uniformly shaped hole having a diameter for receiving a repair rivet. The process continues by inserting and securing a blind rivet through the hole. The rivet can be sealed via any of a variety of methods, including using a solderable rivet and soldering the rivet to the pipe, utilizing a sealed blind rivet, combined with a gasket assembled between a rivet flange and the pipe surface. For two punctures, a section of coupling material can be utilized, sized to cover both punctures. The section is assembled to the pipe by inserting the rivet through both the section and the pipe, securing the rivet, then soldering the coupling to the pipe. A rivet end seal can be assembled to an end of a common blind rivet creating a watertight seal.

Abstract: A rotary airtight container having a body, a lid that covers the opening of the body, a cover plate connected to the underside of the lid, a lifting mechanism for driving the cover plate to move with respect to the lid, a circumferential cone-shaped seal ring positioned all around the lid, and a tapered annular interface that on the bottom of the lid and engages the seal ring. As the lifting mechanism drives the cover plate to lift relative to the lid, the cone-shaped seal ring lifts relative to the lid and moves upwards along the tapered annular interface to seal the space between the tapered annular interface and the opening of the container, thus isolating the inside of the container from outside. This container changes the ordinary way of sealing that uses a locking nut for tightly pressing on the opening of the container, and is easier to operate.

Abstract: A pipe plug comprising a shaft, a force transmission body disposed in a rotatable and axially movable manner about the shaft via a thread connection, and a stop body. Between the force transmission body and the stop body there is a first compression body disposed in an axially movable manner about the shaft in proximity of the force transmission body; a conical support body disposed in an axially movable manner about the shaft; at least one movable anchoring body on the outside of the support body; a second compression body disposed in an axially movable manner about the shaft; and at least one elastic sealing body disposed about the shaft. The shaft and the first compression body are in direct contact with each other and are connected in a non-rotational manner via complementary connection elements to prevent the compression body from rotating.

Abstract: A plug has a plug body having an upper face and a lower face and a deformable member having opposed pipe engagement ends. A support structure is carried by the plug body and spaced from the lower face. The support structure supports the opposed pipe engagement ends of the deformable member. An actuator extends outward from the lower face of the plug body and is connected to the deformable member. The actuator adjusts the distance of a central portion of the deformable member from the lower face of the plug body to cause the engagement ends to move between a retracted release position and an extended engagement position. The actuator is actuated from the upper face of the plug body.

Abstract: A restraint or gripping device for anchoring within the interior of a pipe comprises a pair of end plates adapted to be urged towards each other and a plurality of shoes, positioned between the end plates, and adapted to be moved radially outwardly as the end plates are urged together. In a further aspect, a method of restraining a pipe plug or isolation tool is provided. Also provided are assemblies for pipe isolation including an integral restraint or gripping mechanism.

Abstract: A repair process for a puncture through a plumbing pipe, the process initiates with a step of machining a puncture hole to a uniformly shaped hole having a diameter for receiving a repair rivet. The process continues by inserting and securing a blind rivet through the hole. The rivet can be sealed via any of a variety of methods, including using a solderable rivet and soldering the rivet to the pipe, utilizing a sealed blind rivet, combined with a gasket assembled between a rivet flange and the pipe surface. For two punctures, a section of coupling material can be utilized, sized to cover both punctures. The section is assembled to the pipe by inserting the rivet through both the section and the pipe, securing the rivet, then soldering the coupling to the pipe.

Abstract: The invention relates to a closure for a liquid container, comprising a plug manufactured from at least partially flexible material with a recess which is arranged at least substantially in axial direction in the plug and which is accessible on at least one side, and an operating member protruding outside the plug and displaceable in the recess such that a force exerted by the operating member on the recess in the plug can be modified by displacing the operating member. The invention also relates to methods for placing such a closure into a liquid container and removing thereof from a liquid container.

Abstract: The invention relates to a protective cap (9) for sealing a collecting vessel of a condenser closed by means of a sealing stopper (4).

Abstract: An improved sealing cap in particular for a collector tube in an air-conditioning unit for vehicles suitable for being axially inserted in a cylindrical portion (11) at an end of said collector tube comprises at least two moulded elements able to be coupled (12, 13, 22), a first (12) element being equipped with a portion (16) with the same diameter as the collector and at least one portion with a smaller diameter (17, 21) suitable for stably receiving a second element (13, 22) to define at least one seat (15, 150) for a sealing ring (14), which is realised with the coupling of the at least two elements. The portion with a smaller diameter (17, 21) defines a base of the seat (15, 150), a side surface (19, 28) of the second element (13, 22) and a side surface (20, 29) of the portion with the same diameter as the collector (16) respectively defining sides of said seat (15, 150).

Abstract: Destined to bottles whose neck (1) is of the revolution type and has a smooth internal surface, being constituted as from a cylindrical bushing (2) of a soft material, like, for example, rubber, with an outside diameter less than the inside diameter of the bottle neck (1), linked with what should be its external end in a perimetric flange (3) for leaning over the mouth (4) of said bottle.

Abstract: A bottle stopper for sealing and resealing bottle neck is disclosed. The present invention is the bottle stopper which mainly includes a body, a plug and a jacket. The body comprises a plurality of legs and axially guiding grooves thereof provided on its inner circumference. The plug comprises a plurality of axially positioning ribs being adapted to engage with the corresponding axially guiding grooves in order to increase reliability of structurally combining. A combined body and plug member is inserted into the jacket to form a bottle stopper. When the radially inner flange is engaged with the groove, the plug cannot be removed from the body. As the plug is axially pressed full-scale into the body and the radially inner flange is then disengaged with the groove, the outer circumference of the jacket may radially expanded to seal or to reseal a bottle neck.

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 view port of chemical vapor deposition apparatus for manufacturing semiconductor devices prevents heat loss in a chamber during a plasma deposition process. The view port includes a bracket protruding at the circumference of an opening in an electrode serving as a wall of a chamber of the apparatus, a transparent window pressed by the bracket against the wall via an O-ring, a pivoting cap for capping an opening in the bracket aligned with the window, and heat-insulative material and/or a heating element integral with the cap so as to be positioned close to the window when the cap is closed. The heating element can be a resistive heating wire or a warm air duct formed by a hose or the like. During the deposition process, the temperature of the window is maintained, thereby minimizing the tendency of polymer to adhere to the window.

Abstract: An apparatus for adding coolant to a cooling system of a motor vehicle includes a cap with a resilient sleeve that expands against the inside wall of a radiator filler neck to provide an airtight connection. A valve attached to the cap controls the flow of air and coolant through the cap. A gauge on the cap indicates the pressure inside the radiator. A venturi assembly connected to the valve provides a source of vacuum for evacuating air from the cooling system. Thereafter, coolant is drawn through the cap by the vacuum created in the system.

Abstract: An apparatus for adding coolant to a cooling system of a motor vehicle includes a cap with a resilient sleeve that expands against the inside wall of a radiator filler neck to provide an air-tight connection. A valve attached to the cap controls the flow of air and coolant through the cap. A gauge on the cap indicates the pressure inside the radiator. A venturi assembly connected to the valve provides a source of vacuum for evacuating air from the cooling system. Thereafter, coolant is drawn through the cap by the vacuum created in the system.

Abstract: A fluidtight seal for a container is formed by abutting a metal ring with a step machined in a convexo-concave container closure device and inserting this assembly into an open end of the container. Under compressive force, the closure device deforms causing the metal ring to pivot about the step on the closure device and interact with symmetrically tapered inner walls of the container to form a fluidtight seal between the container and the closure device. The compressive force is then withdrawn without affecting the fluidtight characteristic of the seal. A destructive force against the container closure device is necessary to destroy the fluidtight seal.

Abstract: An apparatus for adding coolant to a cooling system of a motor vehicle includes a cap with a resilient sleeve that expands against the inside wall of a radiator filler neck to provide an air-tight connection. A valve attached to the cap controls the flow of air and coolant through the cap. A gauge on the cap indicates the pressure inside the radiator. A venturi assembly connected to the valve provides a source of vacuum for evacuating air from the cooling system. Thereafter, coolant is drawn through the cap by the vacuum created in the system.

Abstract: Improvements are made to a system in which force is applied to aeration units from only one side of a basin. Part of such force is vector transferred from one end of a beam of the aeration unit to the other end of the beam to move both ends of the beam. The beam supports pipes of the aeration unit. A force transfer module includes one force transfer strand held in a force transfer path between fixed opposite ends of the strand. The force transfer path extends in part along the beam, which is placed in compression. Motion of the one end of the beam resulting from the force is transferred by the single force transfer strand to the opposite end of the beam so that both ends of the beam move relative to the basin under the action of the force.

Abstract: An inner diameter plug for sealing a pipe near an open end of the pipe. The plug is capable of being reused within a range of pipe inner diameter tolerances and of providing effective fluid-tight sealing over a range of internal pressures. The plug can be hand tightened and provides self-gripping and self-sealing features.

Abstract: A leak test port plug device is disclosed which includes a resilient plug having a first portion which is substantially cylindrical and a second portion which is generally conical and formed in integral one-piece relationship to the first portion. When the first portion is inserted into a port of a component to be tested and the plug is compressed, the first portion radially expands in the port and the second conical portion moves into the end of the port to effectively seal the port against fluid leakage.

Abstract: A test plug for sealing a waste pipe includes a generally cylindrical piston having an inwardly tapered lower end with a maximum outer diameter slightly smaller than an inner diameter of a waste pipe. A threaded rod has a segment that extends through the unthreaded central bore of a cylindrical holder and has a lower end connected to the piston. A knob is screwed over the upper end of the rod. An elastomeric O-ring surrounds the tapered lower end of the piston and is deformable in a radially outward direction into sealing engagement with an inner wall of the waste pipe by expanding the O-ring over the tapered lower end of the piston. The knob is turned to pull the rod upwardly through the holder. This causes the lower end of the holder to push the O-ring downwardly over the tapered lower end of the piston, thereby expanding the O-ring against the inner wall of the pipe. A plurality of gripping teeth are pivotally mounted in slots formed at circumferentially spaced locations about the cylindrical holder.

Abstract: A closure plug consisting of opposing frusco-conical sections to apply lateral forces to axially compress and radially expand o-ring means to seal the plug within an opening through a fire-rated barrier may support or enclose insulating materials filling all or part of the opening through the barrier.

Abstract: A viewport assembly having a tubular member, such as a ullage tube, with an internal cylindrical surface, a frame ring with an outer and an inner circumferential surface, the outer surface being defined in part by an outwardly radially extending flange portion and the frame ring having a plurality of spaced apart bolt holes therethrough, a gland ring having an integral forwardly extending tubular portion, the tubular portion being telescopically receivable on the frame ring outer circumferential surface rearwardly of the flange portion and providing an annular area externally of the frame ring between the frame ring flange and the gland ring tubular portion forward end, a transparent window disc sealably received within the frame ring, and a bolt for each of the bolt holes in the frame ring threadably engaging matching threaded bolt holes in the gland ring so that as the bolts are tightened the gland ring is drawn onto the frame ring, compressing the packing ring to expand it outwardly into sealing engagement

Abstract: A method for sealing holes, involves fitting an essentially bushing- and/or tube-shaped plug into a hole and then the wall of the plug is expanded radially along at least one axial segment. In this method, the plug is positively anchored axially in the hole. By this method of producing an axially positive anchoring of the plug in the hole, not only is a tight fit of the plug in the hole achieved, but a mechanical movement of the plug relative to the hole is reliably prevented. A hole arrangement is tightly sealed with an essentially bushing- or tube-shaped plug in the hole having a radially spread axial part fitting tightly in the hole. Between the hole and the plug a locking arrangement with axially positive effect is provided. In a hole arrangement of this kind, not only is tightness ensured, but also piston-like displacement of the plug in the hole is prevented. The hole arrangement can preferably be so designed that the sealing and locking parts are provided axially at different points.

Abstract: A pipe plug of the type including a tie plate having a threaded bolt extending upward from a stepped circular base for mounted an elastic seal ring, a wedge ring and a cone permitting the cone to rotate on the threaded bolt to force the wedge ring to squeeze the seal ring to extend outward for sealing a tubing. The upper step of the stepped circular base of the tie plate is inserted in the seal ring when the seal ring is mounted on the lower step of the stepped circular base so that the seal ring can only be stretched outward.

Abstract: A weld-free all purpose seal for closed fluid systems is disclosed. This sealing device includes a ring body having a flanged top member for coupling to a pipe with a first plurality of apertures in spaced relationship therethrough. The ring body is recessed in the bottom member with a lip extending beyond the apertures. A flexible annular seal is provided having the reduced diameter from top to bottom adapted to be integral with the lip surface of the ring body. A wedge block is also provided with a planar top surface with a second plurality of apertures in spaced aligned relationship with the first plurality and continuing therethrough. The wedge block being of reduced diameter from bottom to top and adapted to receive the flexible annular seal. The wedge block may also have a diameter to interconnect with the recessed area of the ring body bottom member.

Abstract: A mechanical plug device for sealing pipeline access ports having a small threaded inner surface. The mechanical plug device has opposing inner and outer circular plate members. The rigid plate members each have interiorly tapered circumferential shoulders of generally the same predetermined slope. The inner plate member has an inner surface, an outer surface, a central aperture and a central cavity extending inward from the tapered circumferential shoulder. The outer circular plate member has an inner surface, an outer surface, a central aperture and an outwardly extending structure from the tapered circumferential shoulder for movement into the central cavity of the inner plate member. The device further has an elastomeric radially expandable pre-threaded O-ring structure which has an outer circumferential threaded surface configuration. The O-ring structure has a V-shaped bottom cross-section defining inclined surfaces of a predetermined slope.

Abstract: A closure assembly for a container includes a filler nipple formed on the container and having an inner wall provided with a depression, a plug unit and an operating lever pivotally supported on the plug unit, and a sealing ring received in a groove of the plug unit. The sealing ring has a radially outwardly expanded sealing state and a relaxed, non-sealing state. A sealing ring actuating device is operatively connected to the sealing ring and the operating lever for moving the sealing ring from one state to another upon movement of the operating lever between an intermediate position and a closed position. A locking bolt arrangement is supported in the plug unit and has an advanced, locking state and a withdrawn, unlocking state.

Abstract: A hermetical stopper used for liquid receptacles made of aluminum including minicasks of beer. Unlike the case in conventional receptacles in which the discharge ports usually have been hermetically sealed with aluminum as the same material for the main body, the hermetical stopper according to this invention is made independently of the main body so as to be able to put into and pull from out the discharge port at will, so that it is possible to be used repeatedly keeping the hermetically sealed state even after the primary use because of the discharge port being not necessary to be cut off purposely from the main body at the time of broaching the receptacle. In this way, this hermetical stopper according to the invention is very commendable also from the point of view of the effective use of resources.

Abstract: In the embodiment shown, the Plug comprises an elongate body which has a throughgoing passage formed therein and an external ramp surface. A plurality of jaws are independently engaged with the body, and constrained thereon, for movement along the ramp surface to cause the jaws to extend and grip the inside surface of a to-be-tested tube. The body is externally threaded and receives an internally-threaded nut which is used to move the jaws along the ramp surface. One end of the body has land surfaces formed thereon to accommodate a quick-disconnect coupling thereat of a tube. The opposite end of the body has an expandable seal, for sealingly engaging the inside surface of the to-be-tested tube. The seal comprises a nosepiece, centrally bored, with a hexagonal socket formed therein, and a hollow shaft, externally threaded, which threadedly engages an internal thread formed in the mating end of the body.

Abstract: A reusable plug assembly to seal the end of a sewer pipe against gas and water leakage used when the sewer pipe has no useable threads or is not threaded at an open end and in which the plug assembly consists of an overlying end seal bearing against the end of the sewer pipe and having a sleeve extending into the sewer pipe, the sleeve having a flared end portion and a wedge member to expand the flared end portion into a line sealing engagement with the adjacent internal wall of the sewer pipe and an external member simultaneously compressing the end seal against the end of the pipe and drawing the wedge member into the flared end portion of the sleeve to expand it into sealing engagement with the pipe, and the plug assembly being sealed against any leakage between its parts.

Abstract: A closure device which seals against the internal circumferential surface of a tube by an O-ring seal between a plug member and the circumferential surface and the plug being held in the tube by a plurality of segmented members that are positioned around the plug and pressed against the O-ring seal and the internal circumference of the tube by means on the plug that forces the segments into contact with the O-ring seal and the internal circumference of the tube.

Abstract: An improved lavatory drain plug includes a split hub structure, normally separated axially, upon which a cylindrical sealing member is mounted. Bringing the hub together exerts an outward radial force on the sealing member while the rim adjacent the hub exerts both radial and axial forces, resulting in a net outward movement of the member to sealingly engage the walls of a conduit into which the plug has been inserted.

Abstract: A flask for freeze drying being formed of chemically and thermally resistant materials, including a container flask and a cover assembly and having conduit means in the cover assembly for communication with the interior of the container flask and connection to a vacuum source. A filter is removably held in place by a sealing ring on the cover assembly over the point of communication of the tube with the container flask to prevent solid particles from being withdrawn by the vacuum and excludes contaminants on release of the vacuum. A resilient annular sealing ring is compressed between two movable portions of the cover assembly to sealingly engage the walls of the flask mouth and thereby provide a positive seal both at room temperature and in the face of the sudden temperature changes under vacuum which are present in freeze drying procedures.

Abstract: An end closure for large diameter thin wall pipe employs separate opposed outside contractible and inside expansible assemblies to grip the pipe. A separate yoke member is carried by a closure member of the inside assembly and in turn carries means to actuate a seal between the closure member and the pipe. The external contractible member assembly has a sleeve-like clamp which extends longitudinally beyond the area of the internal expansible member and seal and confines the pipe beyond said areas.

Abstract: A method and apparatus is provided for continuously making fiber reinforced plastic pipe in which a conveyor tube is formed on an axially fixed hollow rotatable mandrel. A plurality of bands of resin impregnated fiber elements are wound on the conveyor tube as it advances to provide the pipe assembly. The terminal end of the generated pipe assembly is sealed with a plug. A fluid under pressure is fed through the hollow mandrel and out the forward end of the mandrel into a chamber formed by the generated pipe assembly, the plug, and a fluid sealing means within the pipe assembly being generated, thereby causing the pipe assembly to advance.