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| Number | Title | Issue Date |
| 7361384 | Corrosion protection system for transport pipe An apparatus and method for coating pipelines with a hot melt adhesive coating and a tape. The coating may comprise a copolymer of an alkyl substituted hydrocarbon polymer in combination with a diene polymer and the tape to overly the coating may comprise a polymeri... | 04/22/2008 |
| 7357968 | Reinforced, high pressure, low permeation multilayer hose A reinforced, high pressure hose is disclosed for use in the transport of high pressure fluids. The hose includes a multilayered inner tube capable of prolonged exposure to fluids such as those containing hydrocarbons, and a reinforcement layer overlaying the inner ... | 04/15/2008 |
| 7354392 | Structurally optimized hollow fiber membranes An elongated hollow microporous fiber comprises an inner wall surface defining an interior fiber lumen, an outer wall surface, and a microporous fiber wall therebetween, the fiber wall having one or more continuous, cohesive, elongated filaments embedded in the fibe... | 04/08/2008 |
| 7311122 | Lining material for rehabilitating an existing pipe and a manhole, and barrier liner and method for rehabilitating a pipe and a manhole A pipe lining material for lining the main pipe of a sewer has a soft tubular resin absorption material impregnated with a liquid thermosetting resin, and also has a biodegradable film applied to the external peripheral surface of the pipe lining material. The pipe ... | 12/25/2007 |
| 7311123 | Flexible tubular pipe A flexible tubular pipe comprising a metal carcass helically coiled about a longitudinal axis of said flexible pipe and the carcass comprises a seamed profiled hollow tube. ... | 12/25/2007 |
| 7238250 | Energy absorbing systems and processes, and processes for the production of energy absorbing structural elements An energy absorbing system is provided. The system comprises a fitting having a crack inducing surface extending radially outward in relation to an axis. An energy absorbing structural element formed by a hollow body extends along the axis and has a first end adapte... | 07/03/2007 |
| 7188800 | Collapsible winding core and method of making same A winding core capable of being made in relatively thick-walled configurations and yet capable of being readily collapsed into a flattened configuration for shipping or storage prior to use comprises a plurality of fibrous plies helically wound one atop another and ... | 03/13/2007 |
| 7156128 | Synthetic resin pipe An object of the present invention is to provide a synthetic resin pipe configured to perform water stop accurately by forming a part connecting convex portions of an outer pipe to be flat without reducing flexibility in order to compose a synthetic resin pipe havin... | 01/02/2007 |
| 7132160 | Laminate tape A laminate tape useful for insulating pipes, lines and the like is constructed of a tacky first layer containing asphalt and an insulative filler such as granulated cork adhered to a flexible second layer that is less tacky. The flexible second layer contains a rubb... | 11/07/2006 |
| 7121720 | Protective cap for infrared radiation thermometer The invention is directed to a protective cap (2) for a temperature measurement probe (30) of an infrared radiation thermometer (1) that can be introduced into a body cavity (31). The protective cap (2) is comprised of a base body ... | 10/17/2006 |
| 7093620 | Reinforced plastic pipe and process for manufacturing the said pipe Reinforced pipe obtained by winding, onto a tubular support based on a polymeric composition, of reinforcing tapes comprising an oriented polymeric composition in layers crossed at an equal but opposite angle relative to the axis of the pipe. The tapes are selected ... | 08/22/2006 |
| 7073534 | Silencer for perforated plate flow conditioner A perforated plate flow conditioner includes a single acoustic feedback interference device having an upstream end attached to a downstream side of the perforated plate. The upstream end covers substantially all of the downstream side of the perforated plate between... | 07/11/2006 |
| 7064276 | Communication cable, and communication wire protecting tube A communication cable having a communication wire and an armor including at least two synthetic resin layers, and protects the communication wire in a loose state. The communication wire protecting tube includes at least two synthetic resin layers, and inserts the c... | 06/20/2006 |
| 7044218 | Apparatus for radially expanding tubular members An apparatus for radially expanding tubular members. ... | 05/16/2006 |
| 7044166 | Liquid tank puncture repair kit and method Structure, and a related method, for sealing, from the outside, a leaking puncture wound in the wall of a liquid container. This structure includes a patch body having a perimetered cavity selectively securable via a self-torque-limiting bolt to the outside of such ... | 05/16/2006 |
| 7032621 | High temperature line expansion installation with release agent A high temperature pre-insulated piping system is shown which can withstand conveyance temperatures in excess of 250° F. The piping system includes a first and second length of insulated and jacketed pipe. Each pipe length includes an inner metal pipe having an int... | 04/25/2006 |
| 7007887 | Tubular core with polymer plies A tubular core and associated method of manufacture are provided. The tubular core includes at least one inner ply and at least two plastic plies disposed thereon. The inner ply, which can be paper or plastic, has an inner surface upon which identifying indicia are ... | 03/07/2006 |
| 6966344 | Device for limiting the lateral buckling of armouring plies of a flexible pipe For limiting the lateral buckling of tensile armor plies of an underwater flexible pipe, that can be used in the offshore oil industry, the plies include from the outside inward, at least one external polymer sheath, a first outward retention layer of a defined thic... | 11/22/2005 |
| 6959736 | Multilayer pipe and method for manufacturing one A multilayer pipe which comprises at least an inner layer and an outer layer. The inner layer is made of extrudable plastic, such as polyethylene PE, cross-linked polyethylene PEX or polypropylene PP. The outer layer forms a fire-protecting layer and the matrix plas... | 11/01/2005 |
| 6920900 | Sewer pipe section A pipe section for lining sewer pipelines along with a system of such pipe sections and method of lining a sewer pipeline are provided. The pipe section has a first end portion having a spigot. A protective ring is mounted around the spigot for transferring a load t... | 07/26/2005 |
| 6907906 | Cuffed hose and method of manufacture The present invention is directed towards an improved flexible hose (10). The hose (10) is comprised of at least a flexible material (28) and a reinforcing rod (12) positioned externally of the flexible material (28). Terminal ends... | 06/21/2005 |
| 6889716 | Fiber reinforced pipe A flexible, fiber reinforced pipe has been invented for conveying fluids. The pipe is flexible enough to be spoolable, even under winter temperature conditions. The pipe can contain pressure, when buried, unrestrained and bent. The pipe exhibits impact resistance un... | 05/10/2005 |
| 6857452 | Composite spoolable tube A spoolable composite tube capable of being spooled onto a reel for storage and for use in oil field applications. The spoolable tube exhibits unique anistropic characteristics that provide improved burst and collapse pressures, increased tensile strength, compressi... | 02/22/2005 |
| 6851643 | Spirally wound tube with enhanced inner diameter stiffness, and method of making same Wide ply gaps are intentionally introduced into one or more plies in a radially intermediate zone of the wall of a spirally wound tube. Each ply having wide ply gaps is narrower than the width that would ordinarily be employed at a given spiral winding angle to achi... | 02/08/2005 |
| 6843273 | Gilled pipe The invention relates to a method for producing gilled metal pipes. According to the method, at least one continuous, gill-forming strip is applied to a rotating pipe body at a tangent and unwound onto the pipe body in an approximately helical line. The side of the ... | 01/18/2005 |
| 6827110 | Subsea insulated pipeline with pre-cured syntactic elements and methods of manufacture An insulated pipeline comprises an inner pipe, and an outer poly sleeve co-axial with the inner pipe. The inner pipe and the outer poly sleeve are in spaced relationship to define an annulus. An insulating core within the annulus encases lengthwise the inner pipe, a... | 12/07/2004 |
| 6815022 | Laminated structures constructed from adhesively joined sheet material layers One or more sheet material layers in a multi-layer laminated structure is reinforced by adhesive bridges that extend through openings in the layer and tie together the layers on either side of the reinforced layer. A plurality of openings are provided in the layer o... | 11/09/2004 |
| 6807988 | Thermoplastic reinforced hose construction A flexible hose adapted construction for conveying fluids under pressure. The construction includes a core tube having a circumferential inner core tube surface and an opposing circumferential outer core tube surface. A first reinforcement layer surrounds the outer ... | 10/26/2004 |
| 6769454 | Flexible pipe including a vent passage and method of manufacturing same A flexible pipe formed by multiple layers of different materials, and one or more vent passages are provided in one of the layers for venting any gases permeating through the pipe. ... | 08/03/2004 |
| 6705351 | Flexible pipe and method of fabricating same using overlapping layers A flexible method that includes a tubular member defining a longitudinal passage adapted to contain a conveyed fluid, and a plurality of layers of flexible material helically wrapped around the tubular member. ... | 03/16/2004 |
| 6703091 | Structural lining system for pipes and method for applying same A structural lining system and a method of applying the system to the interior surface of a pipe. First, a layer of adhesive is sprayed onto the interior surface of a previously cleaned pipe. Next, strips of previously coiled unidirectional carbon fiber m... | 03/09/2004 |
| 6698457 | Flexible hose, manufacturing method thereof and extruder A flexible hose which has a hose body made of soft synthetic resin, a reinforcement made of hard synthetic resin wound spirally and joined to the hose body by fusion, and a conductor arranged inside the reinforcement in its longitudinal direction. The con... | 03/02/2004 |
| 6688339 | Composite high-pressure tube and method of manufacturing the tube A high-pressure composite pipe of the present invention comprises an inner layer pipe made of a synthetic resin, and a reinforcing layer formed by spirally winding a stretched polyolefin resin sheet on an external circumferential surface of the inner laye... | 02/10/2004 |
| 6679296 | Ducting Sound attenuating ducting has an inner, helical wire supporting an inner and outer layer formed by strips of a foamed thermoplastic rubber material. Axial and helical reinforcing yarns extend along the ducting between the layers. The two strips are applie... | 01/20/2004 |
| 6629547 | Composite high-pressure pipe and method of joining same As the first object, the present invention intends to provide high-pressure composite pipes which show remarkable pressure resistance and optimum applicability in various uses and which can be economically manufactured in a light weight. To achieve this o... | 10/07/2003 |
| 6604550 | Composite spoolable tube A spoolable composite tube capable of being spooled onto a reel for storage and for use in oil field applications. The spoolable tube exhibits unique anistropic characteristics that provide improved burst and collapse pressures, increased tensile strength... | 08/12/2003 |
| 6540174 | Paperboard core with an improved chuck strength, for the paper industry, and a method of fabricating such A method of fabricating paperboard cores, and the paperboard cores so fabricated, have improved chuck strength and can be used with chucks rotating at a speed of at least 200 mm/min., even with paper rolls having a weight of over 8.5 tons. A plurality of ... | 04/01/2003 |
| 6530137 | Heat-insulated pipe and manufacturing method A method is intended for the thermal insulation of a flexible pipe. The method includes a first step of depositing a thickness of extrudable and rigid insulating material on an outer surface of the pipe, with the pipe moving longitudinally. The insulating... | 03/11/2003 |
| 6516833 | Helically wound reinforcing components for flexible tubular conduits This invention relates to flexible tubular conduits or pipes particularly in situations where the conduits need to withstand relatively high pressures. In such cases, the conduits are reinforced by helically wound armor which is compliant in flexure, and ... | 02/11/2003 |
| 6513552 | Multi-flex stainless steel roof drain hose A drain hose that connects to the movable roof of a petroleum storage tank. The hose extends downwardly through the material stored in the tank and to a discharge at the lower portion of the tank. The hose is comprised of (a) an inner stainless steel tube... | 02/04/2003 |
