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7631664 |
Threaded expansion plugs
A plug for sealing a bore in the wall of a high-pressure fluid container is provided. The plug includes a sloping surface adapted to seal at an edge between surfaces of different diameter. A method...
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7624759 |
Shower drain test plug
A test plug for a shower drain includes a threaded portion having external threads sized to be received in an threaded aperture of a drain. An extension extends downwardly from the threaded portion...
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7607456 |
Plug for hydrostatic testing of flexible polymeric pipe or tubing
A manually installable polymeric plug useful for hydrostatic pressure testing of polymeric pipe or tubing having a flexible wall, the plug having a substantially rigid polymeric handle with a...
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7597118 |
Pneumatic pressure relief test plug
The present invention provides a pneumatic test plug that seals a portion of a pipe section having a generally cylindrical internal pipe wall. In general, the pneumatic test plug includes an...
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7588052 |
Closure plug
A closure plug for bores, including a cylindrical jacket of through hardened steel, whose outer peripheral surface features a toothed design.
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7571743 |
Gravity flow isolation device
A device for isolating at least a portion of a pipe from fluid flowing therethrough. The device having a body ( 1 ) that is at least partially insertable into the pipe. An external surface of the...
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7549447 |
Pressure valve inlet cover system
A pressure cap having a generally cylindrical hollow body with a semispherical cap having an orifice defined within and passing through said cap, a valve stem passing through and of smaller...
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7533699 |
End cap clamping and sealing system
The present invention provides an end cap sealing system for sealing an open piping end. The end cap sealing system includes an end cap having an end cap core. The end cap core has a generally...
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7533698 |
Trackable, identifiable foreign material exclusion device
A foreign material exclusion device which is adapted to be utilized in tubes, pipes, or the like to prevent entry of debris into a potentially sensitive area of an assembly, such as a turbine...
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7530122 |
Apparatus for waste line cleanout
A system for the controlled release of backed up waste water from a restricted waste line and/or for facile pressure clearing of a restricted waste line. The apparatus of the instant invention can...
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7513274 |
Inflatable plumbing test plug and method
An inflatable test plug for insertion into a two way clean out during hydrostatic testing of a building's interior sewer pipes. The test plug includes a hollow cylindrical body portion having a...
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7481096 |
Apparatus and method for providing a test tee
The present invention provides a test tee device for leak testing a pipe line system. In structure, the test tee device includes a tee fitting, comprising a tubular section extending between a...
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7389798 |
Plug for a port
A plug for a port is provided. Preferably, the plug and a cartridge configured to couple fluid tubes to a housing use substantially identical components such as a seal and a retainer or guide.
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7347218 |
Roof cap removal tool
The present invention provides a method and apparatus for removing a test plug from a vent when positioned at a remote location with respect to the vent. The apparatus includes a cover having a...
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7343936 |
Water pipe coupling with off-centered piercing assembly for tear out disk and method of removing disk
A coupling used during testing of a water line including an upstream pipe and a downstream pipe connected by the coupling. A removable barrier disk prevents water from flowing through the connected...
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7334607 |
Protective cap for a sealing stopper in a collecting vessel of a condenser
The invention relates to a protective cap ( 9 ) for sealing a collecting vessel of a condenser closed by means of a sealing stopper ( 4 ).
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7334608 |
Removable sanitary sewer friction-fit plug for unwanted fluid exclusion
This device will prevent intrusion of rainwater, groundwater and other unwanted fluids into a sanitary sewer system thereby alleviating the load on the sanitary sewer, collection, transmission and...
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7325442 |
Leak testing device with a permanent coupling
A leak testing device to be positioned adjacent one or more conduits comprises a generally cylindrical body defining a recess therein and including first and second end portions for cooperating...
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7325573 |
Plumbing line test plug and method of use of the same
A plumbing line test plug includes a plug body adapted to plug an interior diameter of a plumbing line. The body has a wet face, which is exposed to liquid when in use, and a dry face, which is...
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7314065 |
Irreversible plug assembly
A plug assembly for a tube includes a tapered wedge and a sleeve. The sleeve fits over the wedge and is placed in a tube. Relative movement of the wedge and the sleeve causes the sleeve to expand...
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7311120 |
Expandable pipe stopper
An expandable pipe stopper for inserting within a pipe having two rigid circular plates adapted to be inserted wholly within a pipe and an outwardly-expandable flexible seal located between...
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7264020 |
Accessible test fitting for a plumbing system
A test fitting for installation in a plumbing system comprises an annular sleeve having opposed first and second open ends and an inner surface that defines an open interior space and a hole. A...
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7240697 |
Apparatus and method for isolating and testing a segment of pipelines
An apparatus and method for isolating the end of a segment of pipe, which includes a substantially cylindrical body, having first and second ends, and a circumference slightly less than the inner...
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7225836 |
Pipe plug
A pipe plug apparatus configured for insertion into a section of pipe and adapted to radially expand so as to engage the inner surface of the pipe and form a positive seal therewith. The pipe plug...
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7210503 |
Method and device for increasing safety during pipelaying
A method and device for preventing water from penetrating into the rising part/intermediate section ( 12 ) of a pipe ( 6 ) when laying the pipe ( 6 ) on or near the seabed ( 8 ) by means of a...
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7171987 |
Pipe fitting plug
A reusable pipe fitting plug for temporarily sealing the open hub on a non-threaded female pipe fitting. The pipe fitting plug has a retainer with piercing edges, expandable pins or grit type...
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7163028 |
Multipurpose plumbing tool
A multipurpose plumbing tool has a body at one end, a head at an opposite end and an intermediate neck portion connecting the body and head. The marginal end portion of the body is cut back to form...
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7124779 |
Device for fastening a manoeuvrable plug for plugging of pipes
Arrangement at a plug for sealing liquid- or gas-carrying pipes, comprising several slips ( 15 ) arranged peripherally on the plug, so as to allow them to be pushed up along a conical force ring (...
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7111645 |
Method and apparatus for sealing high pressure tubes
A plug for sealing high pressure tubes is made from a memory-shape alloy. The plug is formed having a diameter greater than the inner diameter of the tube and is shaped by cooling to its martensite...
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7021337 |
Plumbing test plug and method
An improved screw in test plug covering the opening of a test plug opening adapted to removably secure inflatable test balls thereto for inflation therein for water column pressure testing, and...
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7013926 |
Plumbing leak testing apparatus
A plumbing pipe plug apparatus configured for insertion into a section of pipe and adapted to radially expand so as to engage the inner surface of the pipe and form a positive seal therewith is...
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6976499 |
Tear-out coupling with cantilevered pull tab
A unitary removable barrier for installation in a cylindrical water line to selectively block the water line to passage of water therethrough. The unitary removable barrier is composed of a single...
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6976509 |
Method and apparatus for pressurizing plastic pipe
A system and apparatus for pressurizing pipe includes a resilient and compressible plug insertable into the opposed ends of the pipe for sealing the pipe. The plug includes a plug body having a...
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6966342 |
Closed end sealing plug
A sealing plug for blind installation in a suitable hole thereby to plug and seal the hole, which sealing plug comprises a sleeve ( 1 ) having one end closed, a stem ( 2 ) having a head ( 4 ) at...
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6915819 |
Tear out coupling
A unitary removable barrier for installation in a cylindrical water line to selectively block the water line to passage of water therethrough. The unitary removable barrier is composed of a single...
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6901611 |
Bathtub wastewater head fitting
A head fitting for a bathtub waste water drainage system is disclosed. The head fitting simplifies leak testing in bathtub waste water drainage system and eliminates the need for a separate test...
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6901966 |
Seal device for tubular member
A seal device is constituted of a plurality of seal tubes. After a connected-tube body having base members disposed at a fore end and a rear end is inserted into a fluid passage such as a tubular...
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6886388 |
Contiguous double containment underground storage tank fueling system and methods for detecting leaks therein
A penetration fitting for forming a sealed connection between a conduit and a containment structure in an underground storage tank fueling system is provided that includes a main fitting element...
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6883546 |
Lockable compression plug assembly for hermetically sealing an opening in a part, such as the end of a tubular member
A lockable assembly for hermetically sealing an opening consists of a threaded wing bolt, a domed capping plate having an annular axial hole and means for locking the assembly, an elastomeric...
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6877529 |
Sealing cap in particular for a collector tube in an air-conditioning unit for vehicles
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...
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6851452 |
Guide plate
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....
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6843108 |
Hydrostatic test plug for water service line
A pipe test plug for scaling and pressure testing a water utility supply line or other pressurized pipe has a plug body sized and shaped for insertion into an open end of a water supply line. The...
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6840090 |
Plumbing testing devices
A plumbing testing device ( 10 ) has a pair of aligned and closed pipe sections ( 12 and 14 ) with open sides facing in opposite directions. The plumbing testing device ( 10 ) is longitudinally...
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6820636 |
Plumbing tool
A plumbing tool and its method of use are disclosed wherein the plumbing tool includes a tube for insertion into a pipe beyond an area of such pipe that is to be soldered, such tube having an...
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6769291 |
Knock-out pressure test cap with breakaway nipple plug
A pressure test cap includes a mounting collar with an outer rib to limit depth of insertion of the cap into a pipe. A closure disc which seals the mounting collar is connected to the collar...
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6755215 |
Tear-out coupling with puncture means
A unitary removable barrier for installation in a cylindrical water line to selectively block the water line to passage of water therethrough. The unitary removable barrier is composed of a single...
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6752174 |
Safety plug
Disclosed herein is a novel drain plug that comprises a body portion, and a recess defined in said body portion. Disposed within the recess is a sealing gasket made of an expandable material.
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6752175 |
Auxiliary device for repairing a pipeline
An auxiliary device ( 100 ) is provided for repairing a pipeline and sealing small damages ( 5 ) in a wall ( 4 ) of a pipeline. A working space ( 8 ) is created between the interior of the pipeline...
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6732762 |
Pressure-containing plug for a tubular passageway
An improved plug device 10 for sealing an internal tubular passageway in a predetermined location against pressure and flow applied from one side. The plug 10 is selectively inserted and...
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6705349 |
Weep plug
The present invention provides a weep plug for an oil sump having a central vent passage and one or more weep passages parallel to the central passage. The weep passages allow oil to flow back into...
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