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| Number | Title | Issue Date |
| 4942070 | Extruded conduits and method of making the same An extruded thermoplastic polymer conduit having a conduit wall of substantially uniform crystalline morphology through the entire thickness thereof free of any oriented surface zone and the process of making such conduits.... | 07/17/1990 |
| 4942071 | Adhesive holding device with separable elements An adhesive holding device for fastening a flat rigid back surface of an object to a relatively rough flat wall includes a first sheet of PVC having an outwardly facing surface covered with pressure sensitive adhesive material affixed to the object, a rel... | 07/17/1990 |
| 4930547 | Powder-filled welded steel tube and method for the continuous manufacture thereof A powder-filled welded steel tube has a tube wall with a welded longitudinal seam and is wound into a coil for despatch. To reduce the risk that the seam opens when the tube is twisted, e.g. on uncoiling, the tube wall is provided with a continuous longit... | 06/05/1990 |
| 4926511 | Movable shower assembly having an automatically retracting hose and a shower head capable of taking up multiple positions A movable shower assembly having an automatically retracting hose and a shower head capable of taking up multiple positions The invention relates to a assembly providing: (1) at rest, an automatically retracting hose which is compact and which therefore does n... | 05/22/1990 |
| 4915990 | Method of, and elastomeric composition for, protecting a substrate A cable splice is environmentally sealed by positioning around it a stretched sheet of a curable elastomeric composition, allowing the sheet to relax into engagement, and then curing the composition. The composition may comprise a polychloroprene elastome... | 04/10/1990 |
| 4899712 | Fuel injection rail manufacturing means and process The invention concerns a method of manufacturing a single-block fuel injection rail. The rail according to the inventive process comprises at least one rectilinear hollow tube, to which are joined at least one fuel intake tip, at least one injection intak... | 02/13/1990 |
| 4892704 | Low Si high-temperature strength steel tube with improved ductility and toughness A low Si high-temperature strength steel tube with improved ductility and toughness which consists essentially of: not more than 0.10 wt % of carbon (C), not more than 0.15 wt % of silicon (Si), not more than 5 wt % of maganese (Mn), 20 to 30 wt % of crom... | 01/09/1990 |
| 4891169 | Transition duct for centrifugal fan The present invention provides a curvilinear transition duct for use with a centrifugal fan that affords optimal fan efficiency without undue duct length. The duct comprises a top section of generally concave planar shape when viewed from above and a bott... | 01/02/1990 |
| 4887647 | Hose In rubber hoses for conveying fuels, the inner tube rubber layer coming into contact with fuels generally comprises two sublayers, namely the inside fluororubber layer coming into direct contact with fuels and the outside layer of an NBR and the like. The... | 12/19/1989 |
| 4881576 | Hose for transport of refrigerant fluids and fuel oils A hose for refrigerant fluid or fuel oil service which comprises a core tube, a reinforcing layer and an outer cover, the core tube being of a composite structure having an inner plastic peripheral wall, an intermediate plastic peripheral wall and an oute... | 11/21/1989 |
| 4882209 | Glass capillary tube and method for its production A method for producing a glass capillary tube, which comprises drawing under heating a multiple tube assembly comprising a plurality of glass tubes having different diameters arranged coaxially one in another and simultaneously integrating the assembly by... | 11/21/1989 |
| 4876780 | Double wall vacuum tubing and method of manufacture An evacuated double wall tubing is shown together with a method for the manufacture of such tubing which includes providing a first pipe of predetermined larger diameter and a second pipe having an O.D. substantially smaller than the I.D. of the first pip... | 10/31/1989 |
| 4877660 | Recoverable fabric sleeve A sleeve suitable for making a cable splice case comprises a matrix material and a recoverable fabric by virtue of which the sleeve is recoverable. The sleeve comprises recoverable weft fibres in bundles of 2-6 running circumferentially, and longitudinal ... | 10/31/1989 |
| 4874646 | Ultrafine tube and method for its production An ultrafine tube is produced by a method comprising the steps of applying a highly polymerized material on a substrate to form a resist layer on a surface of said substrate, applying a laser beam to the resist layer under such a condition that said resis... | 10/17/1989 |
| 4869944 | Cordierite honeycomb-structural body and a method for producing the same A cordierite honeycomb structural body to be used as a catalyst carrier, having excellent heat resistance, thermal shock resistance and coatability with a high specific surface area material and a catalyst is disclosed, which have a chemical composition c... | 09/26/1989 |
| 4865890 | Shrinkable elastomeric sleeve A protective sleeve comprising a sheet of sleeve-forming, chemically-dilated, elastomeric material which shrinks upon exposure to ambient air. The sheet has first and second opposed edges that can be brought into adjacency. The protective sleeve further i... | 09/12/1989 |
| 4862922 | Abrasion resistant sleeve for flat substrates An abrasion resistant sleeve for flat substrates, for example ribbon cable and the like, which includes a hollow flexible sleeve made from a fabric of engineering plastic that has been flattened to define two edges, each of which has a top and a bottom la... | 09/05/1989 |
| 4844755 | High-strength heat-resisting ferritic steel pipe and tube A high-strength, heat-resisting ferritic steel pipe or tube for boiler use containing 0.03 to 0.15% C, 0.1 to 1.5% Mn, 8 to 13% Cr, 1.8 to 3.0% W, 0.05 to 0.30% V, 0.02 to 0.12% Nb, 0.02 to 0.05% N, 0.02 to 0.4% Mo, and up to 0.25% Si. This pipe or tube h... | 07/04/1989 |
| 4832084 | Dual graphite structured pipe This invention relates to a heavy wall monolithic iron pipe comprising nodular graphite in the outer portion of its wall and flake or quasi-flake graphite in the inner portion of its wall and a method for making said pipe. The central portion of the wall ... | 05/23/1989 |
| 4830062 | Porous heat-shrinkable tetrafluoroethylene polymer tube and process for producing the same A tetrafluoroethylene polymer tube which is in a porous form composed of continuous pores and has heat-shrinkability in a radial direction or both radial direction and longitudinal direction of the tube, and a process for producing the same comprising app... | 05/16/1989 |
| 4824705 | Insulated pipe Insulated pipe especially but not exclusively intended for subsea pipelines for transport of oil, gas and similar products which pipe comprises a steel pipe as core, a layer of corrosion protection material, a layer of thermally insulating material surrou... | 04/25/1989 |
| 4813332 | Electromagnetic launcher with cryogenic cooled superconducting rails A railgun with superconducting rails. The device features rails made from ceramic materials capable of becoming superconducting at relatively high temperatures. Some embodiments utilize rails made entirely from superconducting ceramics while other embodim... | 03/21/1989 |
| 4804733 | Thermoshrinkable tube means for controlling uniform heating thereof and process for fabricating such tube A heat shrinkable plastic sleeve having an inner surface deformed in circumferentially spaced portions by unequal amounts from its normal heat stable or unstable configuration so as to provide different stresses in the circumferential direction whereby un... | 02/14/1989 |
| 4804021 | Highly tough ERW steel pipe with distinguished sour resistance A highly tough, ERW steel pipe having a distinguished sour resistance is disclosed. The steel pipe is prepared from steel for production of ERW steel pipe containing 0.01 to 0.35% by weight of C; 0.02 to 0.5% by weight of Si; 0.1 to 1.8% by weight of Mn; ... | 02/14/1989 |
| 4802511 | Shirred tubular material Shirred tubular material comprising a plurality of outer folds arranged along at least two parallel and two counter-directional parallel, longitudinal extending, crisscrossing helixes and inner folds connecting opposing points of diamond shapes defined by... | 02/07/1989 |
| 4803103 | Recoverable article A recoverable article comprises a fabric having zones of different or uniformly varying recovery forces or ratios. The fabric can be made impervious and used for environmental protection.... | 02/07/1989 |
| 4799971 | Tubing for energy absorbing structures Tubing for energy absorbing structures such as automotive door beams: The tubing is heated, quenched, reheated and cold rolled to final diameter. The tubing may be of a ferrous alloy containing C--0.21 to 0.30; Mn--1.00 to 1.50; P--0.035 max.; S--0.040 ma... | 01/24/1989 |
| 4793384 | Self-damping convoluted conduit A convoluted conduit is especially well adapted for use in hostile environments subject to vibrations which bring on fatigue failures. To prevent the conduit from having a uniform resonance throughout its length, the convolutions have a variable wall thic... | 12/27/1988 |
| 4790356 | Drain pipe plug device The drain pipe plug device for drain testing includes an elongated elastomeric, flexible, resilient, hollow, generally cylindrical tube which has a central passageway running its length and in communication with a rear portion bearing an inlet and front p... | 12/13/1988 |
| 4787421 | Flow path defining means and method of making Flow path defining means such as curved conduits, ducts, spillways, engine manifolds and ports, vehicle bodies, missiles and other means defining interior or exterior flow paths for fluids may be designed and generated through the use of a modified super-... | 11/29/1988 |
| 4775585 | Polymer article having an antibacterial property containing zeolite particles therein and the processes for producing same A polymer article containing zeolite particles on which metal ion having a bactericidal property, e.g. Ag, Cu or Zn, is provided by an ion exchange reaction shows an excellent bactericidal effect and durability of the effect, but no deterioration of physi... | 10/04/1988 |
| 4760889 | High bending strength ratio drill string components A drill collar is disclosed having a fishing neck just behind the pin end, which has a reduced dimension compared with the box end. Hence, the tool is particularly well suited for being oriented with its pin end up in a drill string. The BSR is enhanced w... | 08/02/1988 |
| 4749622 | Structure coating method with asphaltic compositions A composition which contains (a) 80 to 99% w of a bitumen component; (b) 1 to 20% w of an elastomer; (c) 1 to 60% w of a hydrocarbon resin which has been modified to contain carboxyl, carboxylic anhydride, hydroxyl and/or amino groups; and (d) 1 to 100% w... | 06/07/1988 |
| 4747431 | Integral joint forming of work-hardenable high alloy tubing A method of fabricating a tube having enlarged ends and made of material which can be strengthened by cold working comprises fabricating a pre-form having the overall configuration of the tube but with increased outside diameters and a decreased length. T... | 05/31/1988 |
| 4744695 | Underground cable duct components and method of installing multiple cables therethrough Disclosed is a kit of curvilinear duct components and a method of utilizing the same to provide an improved mode of simultaneously installing and protecting multiple electrical cables in underground duct installations. The components include tubular elbow... | 05/17/1988 |
| 4743480 | Apparatus and method for extruding and expanding polytetrafluoroethylene tubing and the products produced thereby Apparatus, a method for extruding and expanding tubular products of polytetrafluoroethylene (PTFE) and the products produced thereby are provided. In the apparatus, at least one helical groove is placed in the wall of the extruder tip or die. Preferably, ... | 05/10/1988 |
| 4721637 | Highly oriented resin-made reinforcing member A highly oriented resin-made reinforcing member that contains a highly oriented resin as the principal component and which has a cross-sectional distribution in the degree of orientation.... | 01/26/1988 |
| 4696841 | Heat recoverable termination device There is disclosed a termination device which includes a dimensionally heat-unstable tubular member and a dimensionally heat-unstable insert. The insert is positioned within the tubular member and is in abutting relationship therewith. The termination dev... | 09/29/1987 |
| 4694547 | One-piece metal covering for insulated pipe bends An improved one-piece metal jacket for insulated pipe elbows, bends and/or turns having a central metal spine spaced apart along which a plurality of opposed pairs of metal fingers extend sufficiently to overlap, longitudinally and traversely forming a we... | 09/22/1987 |
| 4688605 | Reinforced hose structure A hose structure of simplified construction suitable for rigorous high pressure applications such as rotary well-drilling apparatus is described. The hose includes a heavy-walled tube of elastomeric material having a measured stress of at least 600 psi at... | 08/25/1987 |
