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| Number | Title | Issue Date |
| 7871110 | Sealing element and a coupling device and a valve device provided with such a sealing element A sealing element that includes a hollow body of metallic material and first and second male sealing members formed at a respective end of the body. The respective male sealing member has an external spherical contact surface designed for mating with a corresponding... | 01/18/2011 |
| 7367362 | System and method for pipe repair A system and method of repairing a pipe including securing a reinforcing material, such as a dry fiber structure (e.g., a carbon fibers) to the surface of the pipe. A polymeric material is placed on top of the reinforcing material, self-penetrating the dry fiber str... | 05/06/2008 |
| 7134695 | Fittings and method of use An article for connecting a fluid conduit and a fluid container includes a receptacle configured to receive the fluid conduit. The receptacle has a base defining an opening for providing communication between the container and the fluid conduit and a sealing surface... | 11/14/2006 |
| 7097804 | Thermoplastic laminate duct A duct formed of a thermoplastic material is lightweight, strong, flame and smoke resistant, and non-toxic. The duct is formed from a flat laminate and does not require a specialized, disposable mandrel for supporting conventional thermoset plies. Preferably, the du... | 08/29/2006 |
| 7004669 | Internal V-band clamp A system for clamping two tubular members together in an end-to-end relationship uses a split ring with a V-shaped outer rim that can engage a clamping surface on each member. The split ring has a relaxed closed state where the ends of the ring are adjacent and the ... | 02/28/2006 |
| 7005581 | Electrical metallic tube, coupling, and connector apparatus and method A labor saving system, method, and apparatus for connecting or coupling lengths of electric metallic tubing (“EMT”). The invention uses couplings/connectors that have barbs that are designed to engage corresponding indentations on EMT to ensure proper installati... | 02/28/2006 |
| 6953194 | Expandable band and locking mechanism The expandable band is used to secure a sealing element within a generally cylindrical structure, such as a pipe or manhole, or other round hole. The expandable band includes a band body having a first band end portion and a second band end portion. The first band e... | 10/11/2005 |
| 6948354 | Water resistant, ventilatory examining device for cloth An examining device for cloth includes a first container having two opposite open ends, a second container having a closed end and an open end, a combining device to combine the first container and the second container and an air supply device in connection with the... | 09/27/2005 |
| 6905141 | Glass elements with a conductive coating, the use thereof, as well as devices, installations and pipe conducts produced therefrom Glass modules for use in the assembly of equipment, installations and for pipe works, the surfaces of which are entirely or partially coated with a conductive coating, in particular from transparent conductive polymers for the purpose of reducing surface resistance,... | 06/14/2005 |
| 6832786 | Tubular member coupling device A device for coupling tubular members including a sheet member having a first end and a second end where the first end and the second end are operatively arranged to overlap one another to form a substantially cylindrically shaped coupling, an abutment member mounte... | 12/21/2004 |
| 6709021 | Tubular member coupling device A device for coupling tubular members including a sheet member having a first end and a second end where the first end and the second end are operatively arranged to overlap one another to form a substantially cylindrically shaped coupling, an abutment member mounte... | 03/23/2004 |
| 6439580 | Sealing element for pipelines The invention relates to a sealing element (1) with inflatable bellows (10) for sealing piping. Said sealing element can be e.g. cylindrical in shape and said bellows (10) can be provided with two recesses (14a, 14b) containing a gel (11). When the bellow... | 08/27/2002 |
| 6126206 | Internal conduit sealing member and band The present invention provides an internal conduit seal for conduits and pipes having an elongated elastomeric seal with first and second seal segments adjacent to the edges of the seal. The sealing segments are made up of a plurality of sealing ribs and ... | 10/03/2000 |
| 5858311 | Thermocouple well assembly with a sealing coupling and a method for eliminating leaks in hydroconversion reactors while continuing to hydroprocess A thermowell assembly and method which allows for arresting leakage in the case a thermowell begins to leak in a hydroprocessing process without having to shut down a flow of a hydrocarbon feed stream through a hydroconversion reaction zone in the hydropr... | 01/12/1999 |
| 5368070 | Radial seal fluid couplers According to a further aspect of the present invention there is provided a coupling comprising a male coupler and a female coupler including means for allowing transmission of fluid pressure between the couplers on the mating of the couplers, a first annu... | 11/29/1994 |
| 5314144 | Thermally compensating insert fastener A fastener assembly is shown including a cylindrical support structure with a bore provided partially therein, the bore having a wall surface with a slot, and a bushing, disposed within the bore of the cylindrical support structure, having an end and an o... | 05/24/1994 |
| 5297817 | Street compression closet flange A street compression closet flange for replacing broken cast iron closet flanges in old buildings comprises an upper cylindrical section, a lower cylindrical section, a rubber seal, and three sets of nuts and bolts. After the broken closet flange has been... | 03/29/1994 |
| 5224741 | Thrust restraint for pipe coupling system This invention is directed to an internal expansion coupling system offering improved thrust restraint when joined to a pair of tubular members, preferably plastic, aligned in end-to-end relationship. The system comprises an elongated open ended tubular j... | 07/06/1993 |
| 5201550 | Pipe coupling system with thrust restraint This invention is directed to the combination of a pair of aligned tubular members joined in end-to-end relationship by an internal expansion coupling device, where such coupling device offers thrust restraint to the combination. Each of the tubular membe... | 04/13/1993 |
| 5121947 | Expansion sealing device A device for providing a sealed intersection between flow passages within a housing comprises an expansion sleeve with a cylindrical outer surface and an axially tapered inner surface for receiving a frusto-conical inner member of greater average diameter... | 06/16/1992 |
| 5092633 | Pipe coupler with thrust restraint An internal expansion coupling member for use in joining a pair of aligned tubular members in end-to-end relationship, where said tubular members are characterized by an essentially uniform diameter and are adapted to transmit a medium under pressure. The... | 03/03/1992 |
| 5013187 | Positioning components and energizing sealing assemblies therefor The invention relates to a method and apparatus suitable for example in enabling the installation of a casing hanger within a bore in an oil-drilling wellhead in a manner so that the installation and the sealing-in of the casing hanger is accomplished in ... | 05/07/1991 |
| 4997212 | Internal expansion pipe coupling member The combination of a pair of aligned tubular membes joined together in end-to-end relationship, where the tubular members are joined by an internal expansion coupling device. The combination is designed for applications exposed to high operating temperatu... | 03/05/1991 |
| 4927189 | Internal expansion coupling device This invention relates to an internal expansion coupling, having particular utility in joining together two tubular members or pipes aligned in end-to-end relationship. The device hereof comprises (a) an elongated open ended tubular joint member formed of a re... | 05/22/1990 |
| 4848806 | Redundant seal for pressure vessels A space vehicle booster has a lower section and an upper section forming a joint with a seal assembly enclosing a closed cavity. The seal assembly has an upper flange joined to the upper section, and has a lower flange joined to the lower section, and has... | 07/18/1989 |
| 4772050 | Quick-disconnect inflatable seal assembly A zero-leak cryogenic coupling includes a polymeric seal clamped to a male bayonet member with two pairs of tightening rings. The tightening rings threadably engage each other in respective pairs around tapered ends of the inflatable seal member so that a... | 09/20/1988 |
| 4741561 | Remotely monitored seal in a connection joint A engageable joint having male pipe end and a female pipe end. The male and female pipe ends are removably engaged with gaskets. The gaskets are inflatable and arranged in a plurality of stages in the axial direction to inflatably seal a clearance between... | 05/03/1988 |
| 4698861 | Dish washing aid device A dish washing aid device for segregating soapy dish water in a single basin kitchen sink, the device comprising a lower base portion adapted to seal with the bottom wall of the basin about a drain therein, the base portion having a water tight vertically... | 10/13/1987 |
| 4685704 | Cuff for sealing joints of pipes The invention relates to a cuff for sealing joints of pipes, adhering inside at the two ends of pipes by a plurality of annular ribs formed in one piece with the rest of the cuff, made of elastic material and which is being pressed outwardly by expanding ... | 08/11/1987 |
| 4636316 | Disposable column cartridge A liquid chromatographic analytical column includes an end cap that is abutted with an end edge of a holder body when the analytical column is fully inserted into a bore in the holder body. An end cap mounted to a precolumn is compressed between the end c... | 01/13/1987 |
| 4602809 | Miniature O-ringless gas line isolator A separable electrical isolator for coupling two pieces of conductive tubing carrying high pressure cryogenic gas includes a gas-impervious dielectric spacer with a bore in which the pieces of tubing are sealed axially-aligned in fluid communication with ... | 07/29/1986 |
| 4557625 | Internal sealing assembly The sealing assembly includes a relatively soft rubber, tubular sleeve having an axial length sufficient to span the joint between hollow members, such as the corbel joint between a manhole frame and a manhole casing, and a sealing portion in each of the ... | 12/10/1985 |
| 4469467 | Manhole chimney seal An internal seal is disclosed between a manhole casting and mating manhole components such as concrete adjusting rings, the concrete manhole cone, or masonry structure of a similar configuration, to prevent water infiltration at this interface. The seal i... | 09/04/1984 |
| 4451364 | High pressure seal and coupling A coupling for high pressure liquid chromatographic columns of any length, individually, or by union of two columns together, in which an end fitting carries a secondary seal together with internal means for retaining the seal in place. The end fitting is... | 05/29/1984 |
| 4444400 | Seal assemblies and corrugated metal packer members therefor A packer member including a plurality of corrugated rings, particularly for sealing the annular clearance between the casing and tubing of an oil well. The packer is carried upon a collar presented by a member coupled into the tubing, and axial compressio... | 04/24/1984 |
| 4346922 | Device for preventing leakage at pipe joints This device comprises a cylindrical member integrally made of an elastic material for covering the inside periphery of a pipe joint, belt members impregnated with a bonding agent to be squeezed out by pressure, and circular expanding members for expanding... | 08/31/1982 |
| 4313828 | High pressure tubing coupler A coupler or union for passing fluid under pressure from a column or tube in which the tube is received within a chamber in fluid communication through the floor within said coupler and forming a zero dead volume seal therewith, an annular recess in the c... | 02/02/1982 |
| 4303103 | Internal sleeve seal and method of use Internal sleeve seal for sealing pipelines by inserting into the pipeline a tube-like collar member of pliable but not necessarily elastic material having locating means preferably in the form of dovetail seals on either end, positioning the seal with two... | 12/01/1981 |
| 4269437 | Jointing of pipes A joint for jointing the ends of two pipes, particularly lined pipes, in which a radial resilient portion extends between the two ends of the pipes, two oppositely extending axial portions at the radial inner part of the radial portion each engage within ... | 05/26/1981 |
| 3990729 | End fitting for hoses The specification discloses an end fitting for a tubular hose which fitting comprises a rigid tubular insert to be inserted within at least one layer of the hose, a ferrule to surround at least a portion of the insert to grip the said layer of the hose be... | 11/09/1976 |
