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| Number | Title | Issue Date |
| 8042576 | Mechanical clean-out test plug The present invention provides a test plug for use with a clean-out that extends at an angle from a pipe section of a pipe system. In general, the test plug includes a sealing assembly that is actuated by an actuating member extending at an angle from the sealing as... | 10/25/2011 |
| 8025079 | Clean out tube check valve Disclosed is a check valve for preventing liquid from entering an attached tube. The check valve includes a cylindrical housing having an inner surface and a removable plug that is at least partially within the housing. The plus has a side wall with at least part of... | 09/27/2011 |
| 7665486 | Tear out test plug for plumbing installations A tear out test plug for plumbing installations includes a cylindrical body having a peripheral sidewall, a closed end and an open end. A positioning flange extends outwardly from the peripheral sidewall at the open end. An end wall closes the closed end. A frangibl... | 02/23/2010 |
| 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 be installed in a wye cleanout fitting and positioned so that the sea... | 05/12/2009 |
| 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 closed top, and a closed bottom portion. The test plug is adapted to rec... | 04/07/2009 |
| 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. ... | 06/24/2008 |
| 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 handle section and base, the cover being visible from a remote location ... | 03/25/2008 |
| 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 pipes until after testing, when the disk is then detached from the b... | 03/18/2008 |
| 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). ... | 02/26/2008 |
| 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 waste water treatment facilities thereby reducing costs. ... | 02/26/2008 |
| 7331217 | Re-usable main drain testing method and apparatus A removable, convenient main drain testing system is provided through the use of a testing device that includes a cap clampable about a drain pipe, an air pressure gauge, a valve and connection to an air compressor. The assembly can be moved from one jobsite to the ... | 02/19/2008 |
| 7328723 | Pipe nipple protective sleeve A pipe nipple protective sleeve that includes a sheath that is closed at a forward end and connects to a collar at an open rear end, where the collar is open into the sheath and the collar hole and sheath diameters and the sheath length are selected to fit over a pa... | 02/12/2008 |
| 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 opposed to the wet face. A flexible pressure responsive annular membrane... | 02/05/2008 |
| 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 with an end portion of a conduit. The body includes an opening between t... | 02/05/2008 |
| 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 and plug the tube. The exterior surface of the wedge and the interior ... | 01/01/2008 |
| 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 peripheral surfaces of the plates so as to be capable of expanding radially.... | 12/25/2007 |
| 7278450 | Coupling assembly for securement in the open end of a pipe A coupling assembly for inserting into and coupling with the end of an open pipe, such as a cleanout pipe used in plumbing systems and wherein the coupling assembly may be used as a plug. The coupling assembly includes a collar secured around a medial portion of the... | 10/09/2007 |
| 7275414 | Extractive sampling system and method for measuring one or more molecular species A non-contact, extractive sampling system and method is provided for measuring the exhaust gas composition and fine particle composition of exhaust emissions of various types of vehicles under actual operating conditions. A portion (or sample) of an exhaust plume of... | 10/02/2007 |
| 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 cord has a first portion removably positioned in the sleeve's interior s... | 09/04/2007 |
| 7249613 | Energy attenuation device An energy attenuation device for a conduit that is adapted to convey a pressurized fluid therethrough, comprising a hose section disposed about a portion of the conduit, wherein such conduit portion is provided with at least one aperture, for example in a surface th... | 07/31/2007 |
| 7243685 | High pressure closure A closure includes a hub having a bore in fluid communication with the port of a vessel. A door is removably positioned within the bore of the hub, and a locking ring is threaded with the hub thread for moving the door to a closed and circumferentially sealed positi... | 07/17/2007 |
| 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 diameter of the pipe segment; a pair of spaced apart inflatable seals ... | 07/10/2007 |
| 7237280 | Tub overflow assembly An overflow assembly employs an overflow elbow having an externally threaded cylindrical fitting that extends through the tub overflow opening. An internally threaded retainer nut with integrally molded test cap is threadably engaged over the overflow elbow cylindri... | 07/03/2007 |
| 7227088 | Balance with a draft shield A balance is equipped with a draft shield that surrounds a weighing compartment and has at least one sidewall which can be designed to be slidable to allow the draft shield to be opened and closed. An access opening is provided in the sidewall, and a closure element... | 06/05/2007 |
| 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 is preferably configurable from a non-sealing configuration wherein r... | 06/05/2007 |
| 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 pipelay vessel (1), and where a plug (22... | 05/01/2007 |
| 7207454 | Method and apparatus for sealing and re-sealing an annular vessel opening A stopper assembly for sealing an opening of a vessel has a threaded body having a tapered head; an elastic jacket fitted over a portion of the body; a retention housing fitted over the body and jacket, the retention housing retaining the jacket from lateral displac... | 04/24/2007 |
| 7185529 | Shower station testing assembly for pressure testing plumbing The present invention provides a testing assembly for pressure testing a plumbing system in a building where the building has a shower station with a drain and a shower inlet. The testing assembly includes a drain adapter, a hose fitting on the shower inlet, and a h... | 03/06/2007 |
| 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 particles designed to engage the inner portion of a pipe fitting hub in or... | 02/06/2007 |
| 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 a reduced section, a shoulder being formed at the junction of the re... | 01/16/2007 |
| 7152630 | Fluid system coupling A fluid system component is provided that includes first and second elements configured to be removably engaged with each other and defining a fluid passageway when engaged. The first element defines three grooves, each of which includes a terminal portion. Correspo... | 12/26/2006 |
| 7152686 | Downhole weight bearing apparatus and method A downhole tool for connection in a work string to prevent premature activation of weight set tools on the work string. The tool has moveable pads which contact the tubing wall and thereby support the weight of the work string. The pads are activated by increasing f... | 12/26/2006 |
| 7152631 | Pipe repair tool The pipe repair tool provides for repairing a damaged section of a pipeline. The repair tool comprises a main body having a top surface and a bottom surface. A compressible alignment portion is positioned above the main body. A compression plate is positioned above ... | 12/26/2006 |
| 7143991 | Reinforcing bar joint sleeve fixing device A reinforcing bar joint sleeve fixing device for fixing a reinforcing bar joint sleeve disposed in the interior of precast concrete to a molding form in fabricating a precast concrete structure with use of the molding form, which device permits both axial and radial... | 12/05/2006 |
| 7140291 | Oil-free/oil-less air compressor with an improved seal An oil-free/oil-less air compressor with a piston positioned for reciprocating in a bore, the piston having a first piston ring assembly made from a rigid, high temperature polymer, and a second piston ring assembly comprising a first portion that engages the bore, ... | 11/28/2006 |
| 7137308 | Sliding pipe plug A sliding pipe plug for working on and testing pipes is presented. The sliding pipe plug includes a center portion and a gasket disposed about the central portion. When towed through the pipe, the sliding pipe plug maintains a substantial seal against water flowing ... | 11/21/2006 |
| 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 (25) by means of a hydraulic cylinder (5), where the... | 10/24/2006 |
| 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 finish temperature and bending its wings in opposing directions such... | 09/26/2006 |
| 7089964 | 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 pipes until after testing, when the disk is then detached from the b... | 08/15/2006 |
| 7077195 | Borehole closure A borehole closure includes a supply line made of plastic and having formed therein a longitudinal passage between a feed end for inlet of an impregnating fluid and a discharge end. The supply line is formed with transverse passages, each covered by a sealing ring. ... | 07/18/2006 |
