Abstract: A tensioner for a power transmission belt that is adapted to be operated in an endless path and a method of making the tensioner is provided, the tensioner comprising a support unit for being fixed relative to the belt, a belt engaging unit carried by the support unit and being movable relative thereto, a coiled torsion spring having a first end operatively interconnected to the support unit and a second end operatively interconnected to the belt engaging unit for urging the belt engaging unit relative to the support unit and against the belt with a force to tension the belt, the spring having a certain torque when the belt engaging unit is disposed at a certain position relative to the support unit, the tensioner having changeable structure holding one of the ends in an adjusted position relative to its respective operatively interconnected unit so as to provide for the certain torque of the spring when the belt engaging unit is disposed at the certain position relative to the support unit.

Abstract: 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 corrugated hose made of polymeric material and having inwardly convex projections with recesses therebetween and extending from one end of the tubular hose to the other end thereof, the coupling having an insert disposed in the one end of the tubular hose and being radially outwardly expanded into sealing relation with the inner corrugated hose, the insert having an outer peripheral surface defined by a plurality of outwardly convex projections with recesses therebetween, the projections of the insert being respectively received in the recesses of the inner hose and the projections of the inner hose being respectively received in the recesses of the insert whereby the interior of the tubular hose is substantially sealed to the interior of the coupling.

Abstract: Disclosed is a method for curing flexible hose on a mandrel wherein the mandrel lubricant is a polyoxyalkylene based lubricant having a pH greater than 8.0; in the preferred embodiments, the lubricant contains an aminoalcohol; lubricant compositions are also disclosed.

Abstract: A prepolymer of the formula ##STR1## where LG is a linking group, and copolymers thereof; polymers prepared therefrom, and a reaction injection molding process employing the same.

Abstract: A belt tensioning system, a belt tensioner therefor and methods of making the same are provided, the belt tensioning system comprising a tensioner arm pivotally mounted to a support, and a wound coiled spring having opposed ends one of which is operatively interconnected to an abutment of the support and the other of which is operatively interconnected to the arm, the arm having a shoulder for being engaged by the one of the opposed ends of the wound coiled spring so as to permit removal of the arm and the wound coiled spring as a self-contained unit from the support when the arm is pivoted to a certain position where the shoulder of the arm engages the one end of the spring and effectively moves the one end of the wound coiled spring out of contact with the abutment of the support.

Abstract: A hose construction, fastening member therefor and methods of making the same are provided, the hose construction comprising a tubular flexible hose having opposite ends and an outer peripheral surface, a fastening member, and a clamping unit fastened to one of the ends of the hose with the fastening member for substantially circumferentially and radially inwardly clamping the one end onto a member that has been inserted into the one end, the fastening member having a part thereof secured to the outer peripheral surface of the hose and having a recess therein that receives part of the clamping unit therein, the fastening member having snap-fit structure for holding the part of the clamping unit in the recess thereof before the fastening member is secured to the hose.

Abstract: A fuel dispensing system and method of making the same are provided, the system comprising a storage tank for the fuel and being disposed in the ground, a dispensing pump disposed above the ground, a first flexible hose construction having an inner surface and being disposed in the ground for conveying fuel from the tank to the pump, and a second flexible hose construction having opposed ends one of which is interconnected to the pump, the second hose construction being disposed above the ground for dispensing fuel from the pump into a fuel container of a transportation vehicle or the like through a nozzle interconnected to the other of the ends thereof, the second hose construction having electrical conductor structure extending therealong for dissipating static electricity from the nozzle to the pump, the first hose construction having leak detection structure for detecting leakage of the fuel therein through the inner surface thereof and for providing an electrical conductor structure therealong for dissip

Abstract: A toothed belt construction, preformed fabric liner therefor and methods of making the same are provided, the preformed fabric liner being adapted to line the toothed surface of a toothed belt construction and having serially disposed tooth-shaped projections throughout the length thereof that accurately correspond to the teeth of the belt construction so as to line the toothed surface thereof, the preformed fabric liner including an endless tubular sleeve that has the tooth-shaped projections formed therein while the fabric liner is still in the endless tubular sleeve form thereof and being telescoped onto an externally toothed cylindrical mold member by axially sliding the preformed endless tubular sleeve thereon before a belt sleeve is subsequently formed on the mold member to make the toothed belt construction.

Abstract: A tensioner for a power transmission belt that is adapted to be operated in an endless path and a method of making the tensioner is provided, the tensioner comprising a support unit for being fixed relative to the belt, a belt engaging unit carried by the support unit and being movable relative thereto, a coiled torsion spring having a first end operatively interconnected to the support unit and a second end operatively interconnected to the belt engaging unit for urging the belt engaging unit relative to the support unit and against the belt with a force to tension the belt, the spring having a certain torque when the belt engaging unit is disposed at a certain position relative to the support unit, the tensioner having changeable structure holding one of the ends in an adjusted position relative to its respective operatively interconnected unit so as to provide for the certain torque of the spring when the belt engaging unit is disposed at the certain position relative to the support unit.

Abstract: A hose construction, coupling unit and system therefor and methods of making the same are provided, the hose construction comprising a flexible hose having opposed ends, a tubular member having opposed ends one end of which is carried by one of the ends of the hose and the other end of which extends outboard of the one end of the hose, and an annular coupling unit rotatably carried on the other end of the tubular member outboard of the one end of the hose, the coupling unit having an externally threaded portion for threadedly connecting with an internally threaded coupling device, the coupling unit having an annular portion provided with a tool gripping external peripheral surface for rotating the coupling unit on the tubular member in order to threadedly interconnect the threaded portion with the coupling device, the annular portion being a part that is separate from the threaded portion so as to be adapted to be rotated relative thereto to tend to prevent unthreading of the threaded portion from the couplin

Abstract: A hose assembly and method of making the same are provided, the hose assembly having fluid passages therein for respectively conveying a volatile liquid in one direction from the container, the assembly comprising a flexible inner hose having an outer peripheral surface and defining an inner one of the passages, a flexible outer hose having an inner peripheral surface and being disposed around the inner hose, the inner peripheral surface of the outer hose and the outer peripheral surface of the inner hose defining an outer one of the passages, a coupling fixed to an end portion of the outer hose, a tubular fitting fixed to an end portion of the inner hose, and a holding unit holding the fitting and the end portion of the inner hose substantially concentrically within the coupling and the outer hose to define a continuation of the outer passage, the holding unit comprising a spider-like member having a ring telescopically disposed on the fitting and a plurality of substantially straight arms radiating outwardl

Abstract: A belt tensioner and method of making the same are provided, the tensioner comprising a support for being fixed relative to a belt, a belt engaging arm carried by the support and being movable relative thereto, a spring operatively associated with the support and the belt engaging arm for urging the belt engaging arm relative to the support and against the belt with a force to tension the belt, the support comprising a shaft having a longitudinal axis, the belt engaging arm being rotatably mounted on the shaft, the arm having a bearing surface angled relative to the axis and the support having a bearing surface angled relative to the axis and facing the bearing surface of the arm, and a bushing disposed between the bearing surfaces and in engagement therewith to facilitate movement therebetween and to tend to prevent cocking of the arm on the shaft when the belt engaging arm is tensioning the belt.

Abstract: A hose assembly and method of making the same are provided, the hose assembly having a first fluid passage therein for conveying a volatile liquid in one direction to a container and a second fluid passage therein for returning the vapors of the volatile liquid from the container, the assembly comprising a flexible inner hose having an outer peripheral surface and defining the first fluid passage therein, and a flexible outer hose having an inner peripheral surface and being disposed around the inner hose, the inner peripheral surface of the outer hose and the outer peripheral surface of the inner hose defining the second fluid passage therebetween, the inner hose having a substantially straight Venturi section therein that tends to remove liquid from a certain area of the second fluid passage, the inner hose having adjacent intermediate ends, the Venturi section having opposed ends respectively interconnected to the ends of the inner hose to provide the first fluid passage therewith, the ends of the inner ho

Abstract: 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 extending from one end thereof to the other end thereof, an outer sleeve of reinforcing material disposed in telescoping relation on the inner hose, and a sleeve of stiff polymeric material disposed between the sleeve of reinforcing material and the inner corrugated hose and having an outer peripheral surface that is substantially straight-line smooth and continuous and substantially coplanar with the apexes of the projections and having an inner peripheral surface that substantially mates with and is disposed in engagement with the projections and the recesses from the one end to the other end of the inner corrugated hose.

Abstract: A hose construction and method of making the same are provided, the hose construction comprising a tubular flexible hose having opposite ends, fastening structure, and a clamp fastened to one of the ends of the hose with the fastening structure for substantially circumferentially and radially inwardly clamping the one end onto a member that has been inserted into the one end, the clamp having end projections for being toggled together to circumferentially enlarge the clamp and hold the clamp out of its clamping condition and for being released from each other so as to be circumferentially moved apart from each other as the clamp circumferentially shrinks into its clamping condition by the natural spring force of the clamp, the fastening structure comprising a single spot of adhesive disposed between and against the clamp and the hose at a point on the hose that is located substantially diametrically opposite the point on the hose where the end projections of the clamp are adapted to be toggled together.

Abstract: 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 extending from one end thereof to the other end thereof, an outer sleeve of reinforcing material disposed in telescoping relation on the inner hose, and a tube of polymeric material disposed between the sleeve of reinforcing material and the inner hose and extending in a generally straight-line manner from projection to projection of the inner hose so as to tend to prevent the sleeve of reinforcing material from entering into the recesses of the inner hose an amount that would tend to substantially reduce the flexibility characteristics of the inner hose.

Abstract: A tensioner for a power transmission belt that is adapted to be operated in an endless path and a method of making the tensioner is provided, the tensioner comprising a support unit for being fixed relative to the belt, a belt engaging unit carried by the support unit and being movable relative thereto, a coiled torsion spring having a first end operatively interconnected to the support unit and a second end operatively interconnected to the belt engaging unit for urging the belt engaging unit relative to the support unit and against the belt with a force to tension the belt, the spring having a certain torque when the belt engaging unit is disposed at a certain position relative to the support unit, the tensioner having changeable structure holding one of the ends in an adjusted position relative to its respective operatively interconnected unit so as to provide for the certain torque of the spring when the belt engaging unit is disposed at the certain position relative to the support unit.

Abstract: 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 recesses therebetween and extending from one end thereof to the other end thereof, the inner hose having a plurality of inwardly facing convex projections with inwardly facing recesses therebetween and extending from the one end thereof to the other end thereof, an outer sleeve of reinforcing material disposed in telescoping relation on the inner hose, a first tube of polymeric material disposed between the sleeve of reinforcing material and the inner hose and having an inner peripheral surface engaging the outwardly facing convex projections in a generally straight-line manner from the one end thereof to the other end thereof so as to tend to prevent the sleeve of reinforcing material from entering into the outwardly facing recesses of the inner hose an amount t

Abstract: 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 one end thereof to the other end thereof, rib structure disposed between the sleeve of reinforcing material and the inner tube, the rib structure being disposed on the inner tube so as to define alternating coil structure of rib structure and coil structure of non-rib structure serially along the longitudinal axis of the inner tube in a like repeating pattern thereof, the coil structure of non-rib structure comprise coil structure of void space, and an outer tube of polymeric material disposed between the rib structure and the sleeve of reinforcing material so as to extend in a generally straight-line manner from coil structure of the rib structure to coil structure of the rib structure so as to tend to prevent the sleeve of reinforcing material from entering i

Abstract: 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 corrugated hose made of polymeric material and having inwardly convex projections with recesses therebetween and extending from one end of the tubular hose to the other end thereof, the coupling having an insert disposed in the one end of the tubular hose and being radially outwardly expanded into sealing relation with the inner corrugated hose, the insert having an outer peripheral surface defined by a plurality of outwardly convex projections with recesses therebetween, the projections of the insert being respectively received in the recesses of the inner hose and the projections of the inner hose being respectively in the recesses of the insert whereby the interior of the tubular hose is substantially sealed to the interior of the coupling.