Abstract: An anti-snoring device including detachably attachable upper and lower trays selectively fitting over a person's upper and lower teeth. The trays are formed of a rigid plastic outer shell and include an inner thermoplastic moldable portion. Tongues are integrally formed with the rigid outer shells and extend from each of the upper and lower trays forwardly from the central portions of the upper and lower trays. The tongues are selectively detachably attachable to one another in a plurality of positions and for shifting the lower tray and jaw slightly forward from its normal position. Depressions are formed in the lower and upper trays which align and form breathing openings between the upper and lower trays on each side of the trays central portions. The trays posterior portions terminate prior to the person's molars or at about the person's premolars.

Abstract: An improved head immobilizer comprises a head support position for placement beneath an injured patient's head, two head support blocks and a forehead strap. The head support cushion is located beneath the head of a patient on a backboard. After the head support cushion is optimally positioned in reference to the patient, an adhesive system is activated to affix the cushion to the backboard. The head support blocks are placed on either side of the patient's head to immobilize it and are held in position by a hook in loop fastening system. Finally, a forehead strap is stretched from on block to the other across the patient's forehead to more completely immobilize the patient. The strap also uses a hook in loop fastener to attach to the head support blocks.

Abstract: A health support device having a lamination of a semiconductor film on a surface of a partially-reduced sintered material of titanium oxide. The semiconductor film is preferably a p-type semiconductor film of silicon or germanium. The partially-reduced sintered material is preferably represented by TiO2−x, where 0<x<0.5. The thickness of the semiconductor film is preferably from 1 nm to 500 nm. In production, a mixture of a titanium oxide powder and a binder is press-molded, and the molded material is sintered at a temperature of from 500° C. to 1100° C. in a vacuum, inert or reducing atmosphere. A p-type semiconductor film is formed on a surface of the resulting partially-reduced sintered material of titanium oxide.

Abstract: A device and system for remotely interrogating a diagnostic implant device utilizes acoustic energy to power and/or interrogate the device. Acoustic energy is utilized to excite the device from outside the body of a patient. By analyzing the response of the device to such excitation, it is possible to ascertain the condition of the device. Additionally, acoustic energy may be used to provide operating power to the device.

Abstract: The carding at the periphery of a driven wheel in the distributor of a cigarette rod making machine receives tobacco particles from the lower portion of a substantially upright duct the upper portion of which can receive tobacco particles from a magazine by way of an elevator conveyor. At least the lower portion of the duct is vibrated (e.g., at an amplitude of approximately 6 mm and at a frequency of 15-25 Hertz) in directions at right angles to the horizontal rotational axis of the wheel to thus enhance the homogeneousness of the carpet of particles being transported by the carding beyond the discharge end of the lower portion of the duct.

Abstract: A smoking accessory that includes a chamber for containing a scented cigarette dousing liquid that is used to simultaneously douse the cigarette and provide a quantity of scenting agent on the cigarette butt to mask the smell of the cigarette butt when it is stored within a sealable cigarette butt storage chamber also formed within the smoking accessory.

Abstract: A wig-fitting component is not bulky at an area of attachment to the natural hair, provides a natural feeling during the wear thereof over a long period of time, is capable of being fixed securely over a long period of time, and is free from adverse influence on the hair skin and roots of the hair. The wig-fitting component is capable of being fixed without causing any damage, deformation and discoloration of a wig base. The wig-fitting component includes a net-type component struck on one side of a flexible planar component, with adhesive being adhered to opposite surfaces of the planar component.

Abstract: The present invention provides a method and apparatus for detecting the end point of a process by monitoring the position of a valve during the process. In one aspect, a cleaning process is performed in the chamber, and a controller monitors the valve position to determine the end point of the process which corresponds to a decrease in the number of steps in the valve position required to achieve a stable throttle valve position after the cleaning process is complete.

Abstract: A method of cleaning tubing in an operating heater, in which the tubing has an inlet and an outlet. While the heater is in operation, a pig is run though the tubing from the inlet to the outlet and then returned to the inlet along return tubing, in parallel connection to the heater tubing. A combined pig launcher and receiver mounted parallel to the tubing, and controlled with three way full port valves, is used to launch pigs into the tubing and remove them from the tubing. A boost pump is used to force pigs back from outlet to inlet.

Abstract: A storage apparatus for photoresist dispensing nozzles has solvent inlets positioned directly opposite the nozzles when the nozzles are in their home positions. Photoresist cleaning solvent is introduced through these inlets at periodic intervals and directly applied on the nozzles to keep them clean.

Abstract: Apparatus for treating substrates, such as silicon wafers (1), wherein the substrates are immersed for some time in a bath (2) containing a liquid (3) and are taken therefrom so slowly that practically all of the liquid remains in the bath (2). The substrates (1) are brought from the liquid (3) directly into contact with a vapor of an organic solvent which is mixed with a carrier gas and introduced from gas leads (17) having outlet nozzles (18). The vapor is miscible with the liquid (3) to yield a mixture having a surface tension lower than that of the liquid, and which does not condense on the substrates. No drying marks with organic or metallic residues or other contaminations remain on the substrates (1).

Abstract: An apparatus for servicing a wafer chuck such as an electrostatic chuck that is equipped with vent holes for cooling the backside of a wafer positioned on the chuck and for clearing the vent holes is provided. The novel apparatus can be used either in replacing a gas supply conduit to the electrostatic chuck without having to break vacuum in the process chamber, or can be used in clearing the vent holes when servicing an electrostatic chuck. The apparatus consists of a three-way control valve and a high pressure gas supply line of a suitable inert gas.

Abstract: An umbrella opening mechanism adapted to open an umbrella comprising a shank having a central bore, a crown fixed to a top end of the shank, a runner movable along the shank and rib-stretcher sets connected between the crown and the runner for supporting an umbrella canopy is disclosed. The umbrella opening mechanism includes a winding device manually controlled by a crank arm. A first rope which has a first end fixed to the winding device and is capable to be wound onto the winding device extend through the central bore of the shank with a second end thereof attached to a movable connection element. Two pulleys are fixed to the shank and arranged in two radial holes defined in the shank proximate the crown and in communication with the central bore. A second rope has a center point fixed in the central bore and two half sections slidably extending through and supporting the connection element.

Abstract: An multiple-fold automatic umbrella includes a telescopic central shaft which constitutes a plurality of movable and overlapping tubes, a rib assembly, a grip, a control means, an extending spring and a plurality of retracting springs. Pressing the control means may trigger an umbrella opening means to stretch the extending spring for extending the overlapping tubes to open the umbrella or to close the umbrella through the retracting springs. The central shaft has an inner block and a rope guide disposed at the tope end to replace conventional rollers. The inner connection rib in the rib assembly is made of metallic wire for increasing the space to install retracting springs, diminishing the retracted volume of an umbrella, and reducing production cost.

Abstract: An improved parasol with an improved ventilation system. The parasol, includes a foldable frame with concentric first and second panels. The radius of the first panel is shorter than the length of the rib of the parasol. The second panel is annular in shape and covers the area from the outer periphery of the first panel to the outermost edge of the parasol. A cord is provided between the second panel's inner periphery and the stretchers to enlarge the gaps at the areas where the first and the second panel overlap. A plurality of elastic loops are provided at the first panel's outer periphery to provide elasticity to the first panel to prevent the first panel from turning inside out in strong wind.

Abstract: A retrievable cane disclosed includes a cane body to which there is attached a retrieval line that is anchored at a lower end and extends from the inside of the cane body at the lower end up through the cane body out through the rear of the cane body below the grip. The retrieval line has an elastic section that allows an attachment end outside the cane body to be releasably attached to the body of the user preferably having the grip portion at the waist allowing normal walking by the user. The elastic section allows the user to pull the cane body away from the waist for use during walking and the elastic section automatically returns the cane to the user's waist when released.

Abstract: A device to aid elderly or disabled persons to gain a standing position from a seated one is provided that is made up of a platform and a handle that can be easily transported and placed in front of a chair or other seating device to help a person in rising from a chair or lowering oneself into a chair. The handle is made of a U-shaped tube that is pivotally attached at one end to the rear of the platform. The pivotal attachment allows the front end of the handle to be lifted to a position that can be easily reached by a seated person when the invention is placed in front of the chair. The pivoting attachment also allows the handle to be folded down to a flat position in relation to the platform which makes it easy to move and store the invention.

Abstract: A collapsible portable camper system for folding into a compact position during nonuse and for expanding into a spacious camper while positioned upon a pickup. The inventive device includes a first wall, a second wall attached to a floor, a pair of side walls, a first platform and a second platform pivotally attached to the side walls, a roof, a tarp attached to the roof, and an elevating structure that extends and retracts the roof. A plurality of support shafts are attached to the roof that are slidably attached to the first wall and the second wall, and that are mechanically coupled to the elevating structure. A plurality of rollers are preferably rotatably attached to the lower surface of the floor for allowing easy removal and insertion upon a conventional pickup. At least one netting is positioned within the tarp serving as a window for the invention. A crank handle is removably attachable to a crank sprocket that is positioned about a crank shaft that extends between the first wall and the second wall.

Abstract: A waterproof shelter includes a frame having two elongated first sides and two short second sides, a canopy mounted on the top of the frame and having two elongated first sides and two short second sides, two elongated side panels each mounted on one of the two first sides of the frame and each having a top side securely bonded to one of the two first sides of the canopy by means of a heat welding process, two end connecting panels each having a first side and a second side, the first side securely bonded to one of the two second sides of the canopy by means of a heat welding process, and at least one auxiliary sheltering panel mounted on one of the two second sides of the frame, and having a top side secured to the second side of one of the two end connecting panels.

Abstract: An improved tent frame is disclosed. The tent frame includes a connector, a first curved flexible strap and a second curved flexible strap. The tent frame is composed of a first receptacle having a first end and a second end thereof, and a second receptacle having a first end and a second end thereof, with the receptacles pivotally connected to each other substantially at midpoints thereof. The first curved flexible strap has a first end attachable to the first end of the first receptacle and a second end attachable to the first end of the second receptacle. The second curved flexible strap has a first end attachable to the second end of the first receptacle and a second end attachable to the second end of the second receptacle. The curved flexible straps are configured so that an empty space sufficient to accommodate at least one user is formed between the curved flexible straps after the ends of the curved flexible straps are attached to the ends of the receptacles of the connector.

Abstract: An apparatus is provided for replacing the fluid employed in a vehicle component, and includes a bi-directional pump having first and second ports to which service, supply and drain lines are connected. The service line is connected to the first port and includes a free end adapted for receipt in the reservoir of the vehicle. The supply line is connected to the second port and includes a free end adapted for receipt in a replacement-fluid container. In addition the supply line includes a check valve that permits fluid flow in a direction toward the pump while preventing the flow of fluid in a direction away from the pump. The drain line is connected to the second port and includes a check valve that permits fluid flow in a direction away from the pump while preventing the flow of fluid in a direction toward the pump.

Abstract: A method for cleaning a solenoid-operated regulator valve wherein command current applied to a solenoid actuator establishes a defined response of a valve. Cleaning current pulses applied to the solenoid establish a response that does not interfere with the effectiveness of the valve function. The pulse width, pulse amplitude, pulse direction and pulse period are determined by the degree of contamination of the valve environment.

Abstract: A convertible two-mode pressure regulator in which a main valve regulates fluid flow between an inlet and an outlet in response to a control pressure produced by a mechanically operated regulator valve, the control pressure depending on the outlet pressure and the force applied by a compression spring to a diaphragm carrying a regulator valve closure element. Compression of the regulator spring is controlled by a mechanical lever assembly and a shaft assembly which is selectively positionable by a selector knob to obtain higher or lower regulator spring force. Adjustable stops provide for individual adjustment of low and high outlet pressures for each of two pressure ranges.

Abstract: A valve for regulating the rate of flow and/or the pressure of oil flowing to a transmission or another consumer in the power train of a motor vehicle has a piston which defines with the valve housing a chamber for one or more springs and for oil being admitted through a first inlet by way of a first conduit containing a first throttle. A second inlet admits pressurized oil from a pump, and such oil can be admitted into the consumer by way of a first outlet and a second conduit containing a second throttle and supplying oil to the first conduit. A second outlet can deliver oil from the second inlet to the sump in response to shifting of the piston. A hydraulic seal is established between the piston and the housing intermediate the chamber and the second outlet to prevent leakage of oil from the chamber into the second outlet. Oil leaking from the chamber could adversely influence the characteristics of oil flowing into the consumer.

Abstract: A safety device for shutting off a gas valve at the detection of a gas leak has an add-on adaptor device having a first knob mounted over an existing gas knob and affixed thereto; a spindle coupled to the first knob, capable of rotating the fist knob, and the gas valve knob, between an open position and a closed position. A second knob is rotatably mounted substantially perpendicular to the spindle, and is provided with firm cantilever which is extended to provide a firm support along side the gas valve knob so as to cause rotation of the gas valve knob when the second knob is rotated in one direction. A spinning is attached to the second knob and is in a wound state when the second knob is parallel to the first knob when the first knob is in the open position, and in an unwound state when the first knob is in the closed position.

Abstract: An apparatus is provided for controlling discharge of fuel vapor from within a vehicle fuel tank. The apparatus includes a valve container with an inlet, an outlet, and a chamber, a valve member formed for movement between an open position allowing fuel vapor flow through outlet and a closed position blocking fuel vapor flow through outlet, and a secondary float valve disposed between inlet and valve member. The valve member includes a central post and wing segments defining flow passages sized to permit fuel vapor flow therethrough and to block momentarily liquid fuel flow therethrough. The secondary float valve moves between an open position allowing fuel vapor flow to the wing segments and a closed position blocking liquid fuel flow to the wing segments.

Abstract: A purge valve for expelling liquid contaminants from a fluid conduit which is normally unpressurized but is at times pressurized with a gas which contains liquid contaminants. It has a housing, a diaphragm mounted within the housing, a control chamber on a first side of the diaphragm, an exhaust passage on a second side of the diaphragm and a valve seat surrounding the exhaust passage. The valve seat is positioned so that the diaphragm can seal against it. A spring on the second side of the diaphragm presses it away from the seat. An annular chamber is on the second side of the diaphragm, surrounding the exhaust passage. The annular chamber is open to the exhaust passage when the diaphragm is unseated from the valve seat. The valve has a low impedance flow path between the control chamber and the fluid conduit. The valve also has a high impedance discharge flow path connected to the annular chamber.

Abstract: A supply apparatus comprises a storage tank, a chemical flow pipe to route a chemical solution into a semiconductor processing room, a pressurizing apparatus to supply gas to the storage tank to make the chemical solution flow into the processing room, and an electro-Pneumatic regulator valve to adjust the pressure of the input gas. The flow control device comprises a flow sensor, a set-up apparatus, and a processor for generating a control signal to the pressurizing apparatus depending on a difference between a target value and a measurement value to adjust the flow of the chemical solution in the chemical flow pipe. The flow sensor comprises a hollow cylinder, a choking magnetic core movably positioned inside the hollow cylinder, and a first and second conductive coil wrapped around the outer wall of the hollow cylinder which uses alternating current to generate a magnetic flux and sense a change in the magnetic flux to measure the flow of chemical solution.

Abstract: An inflation nozzle structure of an infatable envelope. The inflatable envelope is formed by two envelope membranes the peripheries of which are adhered to each other. The inner membranes are adhered to an edge of the envelope membranes and inward extend from the edge. The two inner membranes are adhered to each other to define an air passage serving as the inflation nozzle. An isolating membrane is sandwiched between the inner membranes near an outer opening of the air passage. Two faces of the isolating membrane are formed by two kinds of membranes with different melting points. When thermally pressed, one face with lower melting point of the isolating membrane is thermally adhered to inner wall of the air passage, while the other face with higher melting point is not adhered. Therefore, when thermally pressing and forming the inflatable envelope and the inflation nozzle, the operation can be continued and speeded without complicated processing procedure.

Abstract: For use with a city water system having a plurality of street water mains interconnected by branch water mains and having hydrants connected to the branch water mains, a city water flushing and sludge prevention apparatus consisting of: a sludge-prevention control valve insertable into a branch water main between two street water mains and closer to one of the two street water mains; the sludge-prevention control valve in the closed position preventing water from flowing through the branch water main from the closer street water main during a flushing operation, whereby all water flows through the branch water main from the more distant street water main and thereby flushes the portion of the branch water main between the sludge-prevention control valve and the more distant street water main; and a control mechanism adapted to close and open the sludge-prevention control valve.

Abstract: A manifold system includes an array of conduit outlets fixed in position relative to each other. A fluid connector has two quick connect devices mounted thereon and communicated through a hollow handle, so that a selected pair of the conduit outlets can be placed in fluid communication with each other by simultaneous engagement of the quick connect devices with the selected pair of conduit outlets.

Abstract: A solenoid valve fixing structure, which allows cheaply to improve the working performance of the fixing process and compactness of the fixing, without changing the design of the external form of the existing solenoid valve. The solenoid valve fixing structure includes a recessing portion (6) disposed on an intake manifold (5), for receiving a solenoid valve (1), and a fixing member (4) having a fixing part (4a) to be fixed to the solenoid valve, a deformable lip (4d), which is an elongated portion of the fixing part to contact elastically with the recessing portion, and an insertion lip (4f), which is another elongated portion of the fixing part and is to be inserted into the recessing portion (6). A solenoid valve (1) can be fixed to the intake manifold (5) strongly and promptly.

Abstract: A single-piece flow-control assembly is configured to be disposed within a pit assembly in a manner which allows the flow-control assembly to be easily and quickly removed and replaced. The flow-control assembly includes one or more regulators rigidly connected to a mounting assembly having two coupling mechanisms adapted to rigidly mount to at least one of a fluid inlet pipe or a fluid outlet pipe at locations away from the ends of these pipes. The coupling mechanisms provide a sealed engagement between the ends of the flow-control assembly and the fluid inlet pipe and the fluid outlet pipe when the flow-control assembly is properly installed within the pit assembly. A fluid passageway with a 180 degree bend therein may be provided as part of the flow-control assembly so that the coupling mechanisms simultaneously couple to or decouple from the fluid inlet and outlet pipes by movement of the flow-control assembly in one direction.

Abstract: Apparatus for holding and transporting high pressure rescue air bag system components includes a rigid framework having a base member and a stanchion extending upwardly from the base member. The apparatus incorporates structure which releasably retains the deadman switch, the high pressure regulator and regulator gauge and high pressure air bottle of the system in place for transport by an individual.

Abstract: A pressure regulator for controlling the delivery of gas from a high pressure source to a low pressure device. The pressure regulator includes a distribution body and a pressure adjusting mechanism. The distribution body has a high pressure region and a low pressure region formed therein. The pressure adjusting mechanism controls the transfer of gas from the high pressure region to the low pressure region. The pressure adjusting mechanism includes a piston, an adjusting slug, a seat retainer, a regulator seat, a regulator pin, and a resilient spring.

Abstract: A pressure control valve adapted to supply a secondary pressure required in fluid pressure equipment from a plurality of solenoid valves by a simple means is provided. For this purpose, a pressure control valve 1 for supplying a pressure fluid, the pressure of which has been regulated, to a supply passage 61 in an solenoid valve aggregate 6 formed of a plurality of solenoid valves 60 arranged side by side in a line is employed by placing it between a supply-exhaust block 5 for supplying and discharging a pressure fluid from and to the outside and the solenoid valve aggregate 6.

Abstract: A shut-off device for selectively stopping the flow of conveyed loose bulk materials in a conveyor conduit includes a housing (2) with a flow passage (3) therethrough, and at least one shut-off element (4, 5) movably arranged in the housing. The at least one shut-off element (4, 5) is driven by at least one drive (7, 8) and is arranged in such a manner that it moves between a first open position in which the flow passage (3) is completely open, and a second nearly closed position in which the flow passage (3) is nearly but not completely closed. Namely, a flow gap (6) preferably having a dimension on the order of the particle size of the goods to be conveyed, remains open even when the shut-off element (4, 5) is in its most-closed position. Particles of the conveyed material become caught on or in the gap (6) to effectively close off and stop the flow of conveyed materials.

Abstract: An improved self-sealing-type double tube joint which has a pair of tubular outer shell 11, 21, each of which having a tubular inner barrier wall 12, 22 fixed therein so as to form a double flow passage. The tubular barrier wall 22 in a male outer shell 21 is closed at front end 23 therof, and a side passage 24 connecting to the flow passage 1 is formed in a side wall of the tubular barrier wall. A male-side ring-like movable valve element 41 is slidably mounted on the tubular inner barrier wall 22 so that the valve element 41 shuts the side passage and faces against an end surface of a tubular barrier wall 12 of the female outer shell 11. A female-side ring-like movable valve element 51 is mounted on the inner tubular barrier wall 12 in the female outer shell 11 so as to face against an end surface of the male tubular outer shell 21.

Abstract: A water temperature regulating valve for limiting the maximum temperature of the water output. A temperature limiting cap is installed above the cartridge of the regulating valve. The limiting cap restricts the rotation of a control rod device pivotally installed in the barrel portion of the valve. When the limiting temperature is to be reset, the user removes the cap, rotates it to the desired position, and reinstalls the cap.

Abstract: A fast-acting valve includes a valve body and a spool slidably mounted within the valve body between first and second limit positions. Both the spool and the valve body have a flow passage which come into alignment with the valve spool at a position intermediate the first and second limit positions and spaced therefrom by a given distance. That given distance allows the spool member to accelerate in travel from the first and second limit positions to the valve open position so that the opening of the valve (and closing) occurs quite quickly. Reciprocating movement of the valve spool relative to the valve body can be provided by springs mounted in opposing ends of the valve body bore in cooperation with solenoids mounted on opposing sides of the valve body. The fast-acting valve may be modified into the form of poppet valve or a cartridge valve.

Abstract: A method for optical signaling for electrical switch control, and in addition, optical powering of the electrohydraulic servovalve by means of opto-electric conversion using solar cells with a battery backup and dual redundancy for reliability. Optical power sources are e.g., laser diode, LED, or high intensity lamp.

Abstract: A piezoelectric actuated poppet valve is disclosed. The piezoelectric valve generally includes a valve body having multiple passages that provide fluid flow paths through the valve body. Flow through the flow paths is controlled by the position of a poppet valve that is slidably received in a fluid-tight manner in an interior space within the valve body. A piezoelectric actuator is secured to the valve body and contacts the poppet valve. Actuation of the piezoelectric actuator moves the poppet valve within the interior space. Movement of the poppet valve within the interior space controls flow through the fluid flow paths in the valve body.

Abstract: In a manifold solenoid valve drive-controlled by serial signals, control systems for a single valve and a double valve are achieved by simple switching in a single control system. For this purpose, in order to transmit serial signals to solenoid valves through manifold blocks 30 on which solenoid valves 20 are mounted and which are connected, a printed circuit board 45 having female/male connecting terminals 46a and 46b for transmitting serial signals, a slave chip 47 for extracting operation signals for the solenoid valves from the serial signals, and a feeder terminal 49 for supplying power to the solenoid valves 20 based on the operation signals is accommodated in each manifold block 30. The slave chip 47 can be switched between a single valve mode and a double valve mode, and a switching device 48 for performing the switching is provided on the manifold block 30.

Abstract: Disclosed is an improved assembly of orifice chambers for reducing pressure of large gas flows effective to reduce noise of the gas flows and wear on orifice chambers by progressive pressure drops in the gas flows through successive orifice plates which are releasably secured, preferably by fillet welding, in each of the orifice chambers, removal of one or more orifice plates in an orifice chamber providing manway access to the next succeeding orifice chamber for inspection, repairs, and replacement of the orifice plates thereby reducing the manway opening or access to only one orifice chamber and eliminating separate access manways or manholes for each of the orifice chamber necessary for maintenance of the orifice chambers. Preferably, an internal shell providing an annular space with the body to which the orifice plates are connected is connected to the body by an annular ring and brace by fillet welding in compressions.

Abstract: A plastic end plug for use with plastic pipe, the end plug having a knock-off disc with dimensions that prevent the entire disc, when separated from the remainder of the plug, from entering the pipe bore. The knock-off disc of the plastic end plug is removable by a force applied to the disc in a direction substantially perpendicular to the longitudinal axis through the pipe bore, and desirably includes an optical indicator observable by the user to determine whether or not the underside of the knock-off disc is wetted by a fluid contained in the pipe segment.

Abstract: A releasable plug for sealing an open end of a fluid bearing pipe having at its open end an inwardly directed flange formed upon cutting an end of said pipe; said plug including a plug body, an annular recess formed in the body which engages said flange, and sealing means which frictionally engages an inner surface of said pipe thereby providing a pressure seal for said pipe.

Abstract: The invention relates to a flexible tubular lining material which comprises a seamless plush textile tube and a plastic film layer arranged coaxially and freely around it as well as a method for the production of conduit and/or pipe linings which comprises impregnation of the flexible tubular lining material with a curable resin composition, the introduction of the impregnated material into an inversion tube, the subsequent pressing of this arrangement into the conduit or pipe section to be lined and the curing of the resin under maintenance of applied pressure in the inversion tube.

Abstract: This new sewer cleaning hose is a rubber hose that concentrates on the ability to improve flexibility and cover resistance to cutting and abrasion while providing a six inch minimum bend radius. What makes this hose design unique is the low friction the hose cover offers under operation. No other sewer hose offers the easy capability of routing through sewer applications like the proposed new hose design. The hose comprises an inner tube of an acrylonitrile rubber and an outer cover of UHMW plastic.

Abstract: A pipe has a wiremesh reinforcement-plastic composite construction that includes a first and second spiral reinforcing wire layer. The first spiral reinforcing layer has grooves formed at selected intervals, and the second spiral reinforcing wire layer is pressed into the grooves. The first and second spiral reinforcing wire layers are deformed and joined together by pressure to form a wiremesh reinforcement. The two spiral reinforcing wire layers have a left and right spiral angle &agr;1 and &agr;2 respectively relative to the central line, the left and right spiral angles &agr;1 and &agr;2 can change in the range of 0° to 90°. Thermoplastic penetrates the wiremesh reinforcement and fills both sides of the wiremesh reinforcement to form the composite pipe or component.

Abstract: A layered tubing for use in a motor vehicle composed of an outer layer having an inner and an outer face, the outer layer made of an extrudable thermoplastic; an intermediate layer connected with the inner face of the outer layer, the intermediate layer composed of an extrudable melt-processible thermoplastic capable of sufficiently permanent laminar adhesion or connection with the outer layer; and an inner layer connected with the intermediate layer, the inner layer composed of an extrudable, melt processible thermoplastic capable of sufficiently permanent laminar adhesion of connection with the intermediate bonding layer, the thermoplastic containing as a major constituent a fluoroplastic such as polyvinylidine fluoride, polyvinyl fluoride, and the like.