Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7347227 | Method of reinforcing a cylindrical pipeline and prefabricated plate used in such method In order to reinforce a cylindrical pipeline, in particular an underground water supply pipeline, prestressing reinforcements are placed and tensioned around it. In a zone where the pipeline has a radial projection, for example providing a manhole for access to the ... | 03/25/2008 |
| 7314067 | Design and manufacturing method for multi-material tube structures The present invention provides an improved tubular structure which uses the properties of different materials, such as stiffness, strength, and density are exploited in a manner which combines the most attractive characteristics of existing metal and composite tubes... | 01/01/2008 |
| 7281547 | Multi-layered flexible tube A multi-layered tube comprising a first inner polymeric tubular structure, a second foamed polymeric structure containing a plurality of short or long reinforcing elements dispersed therein and, optionally, a third cover layer on the outer surface of the reinforcing... | 10/16/2007 |
| 7243686 | Hose A hose (10) comprising a tubular body (12) of flexible material arranged between an inner and an outer helically wound wire (22, 24). The hose (10) further comprises an axial strengthening means (20) adapted to reduce deformation o... | 07/17/2007 |
| 7243714 | Well provided with flexible production tubing A well having a bore hole extending from surface to an underground formation, a casing arranged in the borehole, a tubing hanger supported on the top of the casing, a packer arranged in the casing at a predetermined depth, and a tubing extending from the tubing hang... | 07/17/2007 |
| 7234410 | Buoyancy control systems for tubes A buoyancy control system for controlling the buoyancy of a tube may includes generally tubular length of buoyancy control material having a selected buoyancy characteristic. The length of buoyancy control material may be attached to a section of the length of the t... | 06/26/2007 |
| 7225904 | Reinforced brake lining and method of producing A method of producing a brake lining assembly having a wear surface with increased wear characteristics comprises the steps of winding a metal strip, placing the wound metal strip into a brake lining cup, filling the brake lining cup with a brake lining material of ... | 06/05/2007 |
| 7216675 | Highly kink-resistant corrugated tubing A tubing includes an inner liner composed of one or more fluoropolymers, the inner liner being corrugated to define a trough, and having a wire disposed in said trough. The tubing further includes an outer layer, permanently secured to an exterior of the inner liner... | 05/15/2007 |
| 7207354 | Design and manufacturing method for multi-material tube structures The present invention provides an improved tubular structure which uses the properties of different materials, such as stiffness, strength, and density are exploited in a manner which combines the most attractive characteristics of existing metal and composite tubes... | 04/24/2007 |
| 7174922 | Composite strip windable to form a helical pipe and method therefor A composite strip 10 windable to form a helical pipe is disclosed. The composite strip 10 comprises: an elongate plastic strip 11 having a base portion 12 and at least one lengthwise extending rib portion 20 upstanding from the bas... | 02/13/2007 |
| 7152632 | Systems and methods for pipeline rehabilitation The present disclosure is directed to methods and systems for pipeline rehabilitation. The methods and systems disclosed herein permit the rehabilitation of long lengths of previously installed pipe and minimize the need for creating multiple access points to the pi... | 12/26/2006 |
| 7140406 | Device for compensating for pressure drop The invention relates to a device for compensating for pressure drop in a product pipe through which a liquid flows and a system comprising such a device. The device comprises a collapsible tube portion, which is connectible to the product pipe and is characterized ... | 11/28/2006 |
| 7140398 | Sports equipment having a tubular structural member A tubular structural member that provides directional resistance. The tubular structural member has a flexural resistance that is greater in one direction than in another. The tubular structural member can be employed in variety of devices or structures so as to eff... | 11/28/2006 |
| 7127854 | Bulk material storage facilities with access chases and/or internal filling structures A storage facility includes a storage structure having a floor and a boundary wall upwardly extending therefrom, the floor and boundary wall bounding a chamber adapted to receive bulk material. A tubular chase bounds a passageway and is at least partially disposed a... | 10/31/2006 |
| 7108821 | Method for making double-wall shells by centrifuging A method of fabricating a double-walled shell of fiber reinforced plastic material is by centrifuging. The outer wall of the shell is made by projecting glass fibers and resin in a liquid phase against an inside face of a cylindrical mold rotating about its horizont... | 09/19/2006 |
| 7101597 | Medical devices made from polymer blends containing low melting temperature liquid crystal polymers A medical device, at least a portion of which is composed of a polymeric material in which the polymeric material is a melt blend product of at least two different thermoplastic polymers, one of the thermoplastic polymers being a thermoplastic liquid crystal polymer... | 09/05/2006 |
| 7096814 | Variable buoyancy device The method of constructing a hull for ocean profiling or gliding vehicles which reduce the energy required to make vertical excursions. Composite materials are used in constructing the hull, specifically a fiber reinforced matrix, wherein the choice of the fiber mat... | 08/29/2006 |
| 7096890 | Inversion liner and liner components for conduits Inversion liners are provided which in a first embodiment include first and second flexible fabric layers separated by one or more glass fiber containing layers and joined in tubular form. The second flexible fabric layer further is bonded to a third flexible fabric... | 08/29/2006 |
| 7066211 | Device for compensating for pressure drop The invention relates to a device for compensating for pressure drop in a product pipe through which a liquid flows, and a system comprising such a device. The device comprises a collapsible tube portion, which is connectible to the product pipe, and is characterise... | 06/27/2006 |
| 7032623 | Flexible pipe with high axial compression strength and method for making same The present invention relates to a flexible pipe structure wherein transverse displacement caused by buckling of the elongate elements of a tensile armouring layer when the pipe is being laid or used in deep sea is limited. The invention aims to reduce the play betw... | 04/25/2006 |
| 7029356 | Buoyancy control systems for tubes Buoyancy control methods for tubes are described. In one embodiment, a buoyancy control method can include a composite tube and a buoyancy control material for controlling the buoyancy of the composite tube. The composite tube can include an internal liner an extern... | 04/18/2006 |
| 7026026 | Balloons made from liquid crystal polymer blends Balloons for use on medical devices such as catheter balloons are formed from polymer blend products which include a liquid crystal polymer (LCP), a crystallizable thermoplastic polymer, especially thermoplastic polyesters such as PET, and a compatabilizer. The comp... | 04/11/2006 |
| 7004202 | Composite strip windable to form a helical pipe and method therefor A composite strip 10 windable to form a helical pipe is disclosed. The composite strip 10 comprises: an elongate plastic strip 11 having a base portion 12 and at least one lengthwise extending rib portion 20 upstanding from the bas... | 02/28/2006 |
| 6986367 | Faced mineral fiber insulation board with integral glass fabric layer A method of insulating ducts is described including laminating a reinforcement fabric to a fibrous insulation board, lifting at least a portion of the reinforcement fabric from the fibrous insulation board, applying a first layer of a mastic coating to the fibrous i... | 01/17/2006 |
| 6978804 | Systems and methods for pipeline rehabilitation The present disclosure is directed to methods and systems for pipeline rehabilitation. The methods and systems disclosed herein permit the rehabilitation of long lengths of previously installed pipe and minimize the need for creating multiple access points to the pi... | 12/27/2005 |
| 6977103 | Dimensionally stable balloons An inflatable medical balloon comprises a polymer matrix material and a plurality of fibers distributed in the matrix material. The plurality of fibers operatively adhere to the matrix material and provide reinforcement thereof. The fibers may be parallel or angular... | 12/20/2005 |
| 6962672 | Process for the production of a high pressure vessel particularly for a space engine and vessel obtained therby A process for the production of a vessel for high pressure gas, particularly helium, for a space launcher or for a satellite with a short lifetime, includes the steps of: a production of an internal skin of a plastic material selected from polyethylene and crystalli... | 11/08/2005 |
| 6963151 | Composite lamina arrangement for canning of motors In the embodiments described in the specification, an electric motor has a stator and a rotor and a wrap layer includes composite lamina arrangement containing a liquid barrier with a veil cloth and a chopped strand mat resin layer, a strength element containing a h... | 11/08/2005 |
| 6955023 | Unitary metal structural member with internal reinforcement A metal unitary structural member for structural support. The member includes a plurality of web portions extending radially from each other and extending with each other in an axial direction, and a plurality of outer portions extending in an axial direction with t... | 10/18/2005 |
| 6953061 | Protective sleeve for fluid circulation tube The invention concerns a protective sleeve for fluid circulation tube made of an interwoven fiber structure formed by a strip (10) of interwoven fibers comprising at least a pocket (11) extending in the transverse direction of the strip (10) and... | 10/11/2005 |
| 6949282 | Contoured crushable composite structural members and methods for making the same The present invention provides contoured crushable composite structural members and methods for making the same. The contoured structural members comprise composite materials sandwiching a support or stabilizing structure. The contoured structure can be provided by ... | 09/27/2005 |
| 6935681 | Device for reinforcing a hollow element of a motor vehicle The invention relates to a device for reinforcing a hollow element (16) of a motor vehicle, especially a column of the body. The inventive device consists of at least one elongate, dimensionally stable plastic support frame (10) insertable into the hol... | 08/30/2005 |
| 6926037 | Collapse tolerant flexible pipe and method of manufacturing same A collapse tolerant flexible pipe and method of manufacturing same according to which an inner tubular layer is provided within an outer tubular layer in a coaxial relationship thereto. The inner layer maintains the maximum allowable strain on the outer layer below ... | 08/09/2005 |
| 6905743 | Dimensionally stable balloons A medical balloon composed of a micro-composite material which provides for radial expansion of a balloon to a predetermined extent, but which has minimal longitudinal growing during balloon inflation. The micro-composite material includes a fibril component, a matr... | 06/14/2005 |
| 6901969 | Plugs for use in conduits to reinforce air conditioning ducts, and methods of manufacture and use A method and apparatus for reinforcing duct work is provided. In one embodiment, a reinforcement comprises a conduit having a first end and a second end. A pair of plugs is insertable into the first and second ends of the conduit. Each of the plugs has a groove exte... | 06/07/2005 |
| 6899140 | Flexible pipe and method of manufacturing same using metal reinforced tape A flexible pipe and a method of manufacturing same according to which a tubular sheath is provided that defines a longitudinal passage for receiving a conveyed fluid, a tape is formed by a plurality of metal fibers supported by a strip of flexible material to form a... | 05/31/2005 |
| 6896006 | Design and manufacturing method for multi-material tube structures The present invention provides an improved tubular structure which uses the properties of different materials, such as stiffness, strength, and density are exploited in a manner which combines the most attractive characteristics of existing metal and composite tubes... | 05/24/2005 |
| 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 |
| 6830077 | Method for producing a structural element with a reinforced bend and a structural element A profiled element (1) includes a tubular blank (2) which is formed into the desired shape by hydroforming. In conjunction with hydroforming, at least one slot essentially in the longitudinal direction of the blank is made in wall portions (4, 6... | 12/14/2004 |
| 6827109 | Flexible hose and method of manufacture A flexible hose and a method for manufacturing the same includes a hose tube having a smooth exterior surface. The hose tube exterior surface has a fabric and cover laminated or wrapped thereon. The lead end of a single wire is helically wound about the hose tube on... | 12/07/2004 |
