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| Number | Title | Issue Date |
| 5233739 | Adhesive bonding expanded insert hose construction assembly A hose construction and methods of making the same are provided, the hose construction comprising a tubular hose and a coupling secured to one end of the tubular hose, the inner peripheral surface of the tubular hose comprising an inner corrugated hose ma... | 08/10/1993 |
| 5203380 | Bending device A bending device for use in an endoscope, a catheter or the like is of a simple construction having a coil, an operating wire and a pair of limitation members for limiting an axial compression of the coil. The pair of limitation members are arranged along... | 04/20/1993 |
| 5199752 | Hose construction, coupling therefor and methods of making the same A hose construction, coupling therefor and methods of making the same are provided, the hose construction comprising a tubular hose and a coupling secured to one end of the tubular hose, the inner peripheral surface of the tubular hose comprising an inner... | 04/06/1993 |
| 5195563 | Flexible hose and fittings A flexible hose has ribbed portions concatenated with cylindrical smooth tions. The ribbed portions provide flexibility and resilience to the hose. Flotation cuffs for buoyancy and wheel cage cuffs for reducing friction are mounted on selected smooth por... | 03/23/1993 |
| 5193588 | Pressure-resistant helical corrugated pipe A pressure-resistant helical corrugated pipe comprises a helical corrugated pipe wall having a top portion, opposite side wall portions and a bottom portion; a continuous thin metal belt plate of a generally U-shaped transverse cross-section which is disp... | 03/16/1993 |
| 5191916 | Pressure-resistant helical corrugated pipe A pressure-resistant helical corrugated pipe comprises a helical corrugated pipe wall having a top portion, opposite side wall portions extending from the top portion and a bottom portion extending from the side wall portions and disposed closed to the ax... | 03/09/1993 |
| 5176180 | Composite tubular member with axial fibers adjacent the side walls A composite tubular member having an outer cylindrical member containing fibers oriented to resist internal pressure and provide low bending stiffness, and two inner smaller core members located near the neutral axis of the composite tubular members conta... | 01/05/1993 |
| 5174340 | Apparatus for preventing casing damage due to formation compaction A method and apparatus for preventing casing damage due to high axial loading in a well as a result of compaction of the surrounding earth formations. The method consists of providing specially sized and located grooves on both the inside and outside diam... | 12/29/1992 |
| 5160811 | Duct transition converter and flexible connectors including same A universal flexible transition connector for connecting the ends of spaced apart wiring ducts is described. The connectors are flexible along six axes of change to provide a single fitting capable of making any number of gradually curved interconnections... | 11/03/1992 |
| 5158389 | Hollow section for coupling with other sections A coupling including a first hollow section having longitudinal corrugations and a second section having an aperture therein. The coupling is made according to the method including the steps of inserting the first hollow section having longitudinal corrug... | 10/27/1992 |
| 5156901 | Corrugated cardboard structure A corrugated cardboard structure for use in wrapping of goods during shipment. A core cardboard of wave shape is glued to at least one cardboard surface sheet at crests of the waves of the core cardboard, with at least one non-glued portion of the cardboa... | 10/20/1992 |
| 5154869 | Cable conduit with ridged inner wall An electrical conduit for wires or cables is formed by a tube extending along a longitudinal axis and having an inner wall formed with a plurality of longitudinally throughgoing ridges each formed by a plurality of longitudinally joined sections with ever... | 10/13/1992 |
| 5148836 | Flexible hose construction A flexible hose construction and method of making the same are provided, the flexible hose construction comprising an inner corrugated hose made of polymeric material and having a plurality of outwardly convex projections with recesses therebetween and ex... | 09/22/1992 |
| 5148837 | Pipe for relining underground pipelines Pipe for relining underground pipelines, which is of the composite type having an annularly rigid corrugated outside wall (10) of polymer material, which is connected to the outside surface of a smooth inside wall (11) which consists of a thermoplastic el... | 09/22/1992 |
| 5145545 | Flexible hose construction and method of making the same A flexible hose construction and method of making the same are provided, the flexible hose construction comprising an inner corrugated hose made of polymeric material and having a plurality of outwardly convex projections with recesses therebetween and ex... | 09/08/1992 |
| 5143060 | Insulated carbon dioxide absorption system A system for use with assisted human breathing systems which includes an enclosure adapted to receive a granular material for absorption of carbon dioxide from the air exhausted from a patient using the system. An exhausted air inlet is provided to the de... | 09/01/1992 |
| 5129429 | Flexible hose construction A flexible hose construction and method of making the same are provided, the flexible hose construction comprising an inner corrugated hose made of polymeric material and having a plurality of outwardly facing convex projections with outwardly facing rece... | 07/14/1992 |
| 5129686 | Hose construction, coupling therefor and methods of making the same A hose construction, coupling therefor and methods of making the same are provided, the hose construction comprising a tubular hose and a coupling secured to one end of the tubular hose, the inner peripheral surface of the tubular hose comprising an inner... | 07/14/1992 |
| 5129428 | Flexible hose constuction A flexible hose construction and method of making the same are provided, the flexible hose construction comprising an inner tube made of polymeric material, an outer sleeve of reinforcing material disposed in telescoping relation on the inner tube from on... | 07/14/1992 |
| 5126507 | Arrangement for protection of electrical installations against electrical disturbances For protecting electrical installations against electromagnetic interferences and especially against over-voltages as can for instance occur as a consequence of lightning strikes, electrical lines provided between individual electrical apparatus are laid ... | 06/30/1992 |
| 5125909 | Flexible tubular channel with external supporting ridges A tubular channel usable in endoscopy for flexible auxiliary instruments such as forceps, electrodes and the like to be passed through, in which structuring of the outer wall face by means of a plurality of radial grooves is employed to obtain high flexib... | 06/30/1992 |
| 5089074 | Flexible hose construction and method of making the same A flexible hose construction and method of making the same are provided, the flexible hose construction comprising an inner corrugated hose made of polymeric material and having a plurality of outwardly convex projections with recesses therebetween and ex... | 02/18/1992 |
| 5085251 | Rectangular flexible duct A rectangular, flexible duct serves as an alternative to galvanized sheet metal duct work installed in homes by utilizing corrugated semi-rigid top and bottom walls with relatively flexible connecting side walls so that the duct may be easily rolled and s... | 02/04/1992 |
| 5074324 | Method and apparatus for reducing drag and noise associated with fluid flow in a conduit A method and apparatus for reducing drag and noise associated with fluid w within a conduit is provided. The conduit has flexible walls that are shaped to form stationary waves having peaks and troughs and are repeated in the axial direction of the condu... | 12/24/1991 |
| 5069253 | Flexible hose assembly A flexible hose assembly for a mercury line for a manometer, and including a length of convoluted hose having an end, an inner sleeve positioned over the hose and having an end welded to the hose end, a hose fitting having an end and a welding section spa... | 12/03/1991 |
| 5060697 | Extruded buckling-resistant insertion mountable drain or venting hose for positioning in a hollow space of a motor vehicle body An extruded buckling-resistant longitudinally insertable drain or venting hose of PVC or a similar thermoplastic material which can be mounted in inaccessible hollows of a conveyance, especially a motor vehicle body, has longitudinally-extending radial ri... | 10/29/1991 |
| 5058934 | Flexible and extendible pipe section A flexible and extendible pipe fitting for plastic pipe comprises a tubular bellows capable of being axially expanded and contracted and an inner lining for laminar fluid flow, where the lining is completely sealed in a fluid impervious manner to the inte... | 10/22/1991 |
| 5048572 | Vibration damping heat shrinkable tubing Heat shrinkable tubing is disclosed which provides cushioning and vibration damping particularly useful for hand held power driven equipment. The tubing is extruded with internal ridges running along its entire length, which when heat shrunk on a substrat... | 09/17/1991 |
| 5038832 | Cored high density shirred casings Flexible tubular cellulosic food casing shirred and compressed onto a rigid hollow tubular core to a high compaction condition to produce a casing stick with additional stuffing length capacity, enhanced structural stability and strength, and larger stuff... | 08/13/1991 |
| 5039011 | Underground connectors for sprinkler systems An underground branch connector assembly for water feed from a main supply pipe to a sprinkler head which permits a range of locations of the sprinkler head independent of the location of the supply pipe, comprising a flexible hose having an anti-kinking ... | 08/13/1991 |
| 5037143 | Hose construction, coupling therefor and methods of making the same A hose construction, coupling therefor and methods of making the same are provided, the hose construction comprising a tubular hose and a coupling secured to one end of the tubular hose, the inner peripheral surface of the tubular hose comprising an inner... | 08/06/1991 |
| 5027665 | Protective gaiters for joints A protective gaiter particularly for a motor vehicle steering joint is formed from a flexible tubular body. In a first embodiment, instead of relying on moulded convolutions to permit flexing in use, the tubular body is folded back over itself to form a U... | 07/02/1991 |
| 5027864 | Tubular apparatus for transmission cable An inner duct is disclosed which can fit inside a duct and extend along a length thereof for receiving communication cable, particularly a light-guide cable. The inner duct has a continuous side wall with protruding ribs on the inside and outside surfaces... | 07/02/1991 |
| 5023959 | Extendable waste hose system A systen for extending and retracting the waste hose for a waste disposal system that is typically found on recreational vehicles and includes power or crank-driven hose extender means for extending the collapsible hose from its collapsed mode stored on-b... | 06/18/1991 |
| 5015515 | Ventilated expandable boot An expandable boot employing a bellows for enclosing and protecting an object that changes in dimension. In one embodiment, the boot includes a vent in the form of at least one tube projecting from the boot and open to the atmosphere for the admission or ... | 05/14/1991 |
| 5005613 | Light weight flexible coaxial vapor recovery hose A coaxial vapor recovery hose assembly comprising an inner hose, an outer hose, and structure for holding said hoses in concentric relationship; wherein the inner hose is substantially reinforced to be relatively incompressible as well as being capable of... | 04/09/1991 |
| 4995759 | Drainage tube construction A ground drainage system includes a relatively narrow, elongated trench disposed along a roadway (or agricultural field); and a drainage tube construction disposed in the trench. The tube construction including a plurality of longitudinally extending, sub... | 02/26/1991 |
| 4970351 | Wiring harness conduit An automobile wiring harness conduit having a corrugated tubular wall member of resilient plastic material and an outer covering of flexible sound-deadening foamed material with an axial slit from end-to-end through the outer covering and the wall member.... | 11/13/1990 |
| 4967799 | Plastic abrasion-resistant protective sleeve for hose and method of protecting hose The present invention relates to a plastic abrasion resistant protective sleeve for covering a radiator hose. The sleeve of the invention has a corrugated external surface comprising a plurality of projections and troughs formed in said sleeve. The projec... | 11/06/1990 |
| 4964440 | Ribbed pipe Disclosed herein is a hydraulically efficient metal pipe particularly adapted for use in storm drain and sanitary sewer applications which is adapted for use with a self-supporting interior inert protective lining. The pipe has a channeled wall defining a... | 10/23/1990 |
