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| Number | Title | Issue Date |
| 4456034 | Formable hose A collapse resistant hose is described which may be selectively deformed to a desired shape. It includes the usual elongated polymeric body, including an internal passageway in which is positioned a spring insert reinforcement. An axially extending rod me... | 06/26/1984 |
| 4452280 | Flexible hose wound of a web material and reinforced with wire windings The invention relates to a flexible hose formed of a wound web material and having its walls reinforced by wire windings, with the edges of successive web windings overlapping one another. In accordance with the invention, the longitudinal axes (Da) of th... | 06/05/1984 |
| 4423283 | Controllable stiffness duct A controllable stiffness duct having a spirally wound metallic strip with a spiral turns interlock to define a flexible product carrying or delivering conduit. Disposed in the spiral turns interlock is a pressure line inflatable to stiffen the conduit and... | 12/27/1983 |
| 4417603 | Flexible heat-insulated pipe-line for in particular cryogenic fluids A fluid-conveying, flexible, lagged pipe for building up in particular a liquefied natural gas carrying pipe-line connecting an off-shore platform for working submarine oil fields or like underwater pools to a tanker ship and comprising an inner tubular d... | 11/29/1983 |
| 4410014 | Flexible insulated air duct A glass wool blanket is formed directly on glass fiber scrim for use in flexible insulated air duct with any kind of outer jacket. The scrim-faced wool passes the flame-penetration test of Underwriter's Laboratories Standard UL 181 regardless of the outer... | 10/18/1983 |
| 4344462 | Flexible tubular conduit A flexible conduit has an undulating liquid tight inner tube portion and layers of metal reinforcing wound around the tube. The layers include a burst resisting layer adjacent the tube, then traction and pressure resisting layers, and an outer sheath. The... | 08/17/1982 |
| 4334121 | Electrical conduit including helical grounding and reinforcing elements An electrical conduit formed of helically fabricated grounding and reinforcing elements, including a spaced-turn foil channel defining a substantially smooth conduit bore, and an end fitting in combination with the conduit.... | 06/08/1982 |
| 4328392 | Welded-turn helical electrical conduit with electrically conductive grounding element An electrical conduit formed of helically fabricated grounding and reinforcing elements, including a foil channel having overlapped turns welded to one another and to a supporting helix.... | 05/04/1982 |
| 4319610 | Process for coating metal tubes and use of the coated tubes A process for the coating of metal tubes by the application of polyethylene to the preheated tubes, a polyethylene with a melt index of over 1 g/10 minutes being applied first to the pre-heated metal tube and a polyethylene with a low melt index being app... | 03/16/1982 |
| 4295496 | Hose with internal insert member A hose is described having the usual elongated polymeric body and a coiled insert member formed of a plurality of turns contained within the internal passageway of the hose. The hose body has a normal tendency to swell under elevated temperatures or press... | 10/20/1981 |
| 4213485 | Hose A flexible hose comprising a lining layer of substantially impermeable material, a reinforcement structure comprising at least one balanced pair of helically extending reinforcement members embedded in elastomeric material to withstand internal pressure a... | 07/22/1980 |
| 4173670 | Composite tubular elements A tubular composite structure for transmitting forces comprises a metal tubular core, preferably of aluminum, having a layer of structural metal adhesive on the exterior surface of the core. On top of the structural adhesive layer are alternating laminae ... | 11/06/1979 |
| 4164242 | Valve for a pressure tank A pressure tank includes a hollow container which has an outlet for discharging fluid therefrom. The outlet is provided with a valve seat, for receiving a valve member which is slidably mounted in the container above the valve seat for respective movement... | 08/14/1979 |
| 4106527 | Reinforced flexible conduit and method of manufacture A heavy duty conduit is disclosed for services such as oxygen supply to lances and torches and includes plural metallic strands which are twisted together with a central channel therein to form a duct for the gaseous medium, an impervious sheath enclosing... | 08/15/1978 |
| 4106528 | Tube for fluid substances under pressure A composite pressure tube for the transport of hot fluid substances is proposed consisting of a very thin internal metal tube and a layer of mineral fibres, which are arranged in laminations wound cross-wise above each other and which carry at least the h... | 08/15/1978 |
| 3930419 | Casing for shafts and cables A conductor or casing for shafts and cables, comprising a plastic tubular member having over a portion of its length a plurality of convolutions to permit bending and longitudinal compression and extension without substantial reduction in the internal dia... | 01/06/1976 |
