Abstract: The invention is an improved hose clamp of the type formed of a band of heat shrinkable polymer having a diameter reducing released temperature, an inside band surface and an outside band surface. It is improved by the inclusion of a shrinkage indicator.

Abstract: The invention is an improved hose clamp of the type formed of a band of heat shrinkable polymer having a diameter reducing released temperature, an inside band surface and an outside band surface. It is improved by the inclusion of a heating indicator.

Abstract: A twin screw extruder and torque splitting transmission has two output shaft portions that are axially spaced apart a distance and are connected to elongate shafts where at least one is bent along its length and powered by a driven pinion gear that has a diameter that is greater than the distance between the axes of the twin screws.

Abstract: A belt tensioner type with a pivot-arm pivotally mounted a cocave arcuate bushing supported by a base, a pulley rotatably mounted to the pivot-arm, and a spring between the pivot-arm and base biasing the position of the pivot-arm and wherein the arcuate bushing provides bearing support and damping to pivoted movements of the pivot-arm.

Abstract: A process is provided for producing elastomeric compositions by forming a mixture of polymeric material, a reinforcing agent, a processing aid and a vulcanizing agent. The process of the invention is continuous and includes the repeated, sequential steps of admixing the polymeric material along a first mixing zone defined by a space wherein the gross energy applied induces a first operating temperature range. The mixture of the first zone is continuously passed into and through a second mixing zone while adding and admixing the reinforcement agent and processing aid therewith, the second mixing zone being defined by a space wherein the gross energy applied induces a second operating temperature range. The mixture of the second zone is then continuously passed into and through a third mixing zone while adding and admixing the vulcanizing agent therewith, the third mixing zone being defined by a space wherein the gross energy applied induces a third operating temperature range.

Abstract: A spring bias tensioner of the eccentric type with a fixed cam ring and rotatable cam ring activated by a torsion spring wherein the cam rings generate an axially force to engage radial friction sliding surfaces to affect damping as a pivot arm of the tensioner is moved.

Abstract: A toothed belt with a plurality of teeth along one surface of the belt which surface includes a peripheral wear-resistant fabric that is double woven with two sets of warp yarns and two sets of weft yarns that are tied together in a single layer.

Abstract: The invention is a device for providing a clamping force about a connection end of elastomeric hose and tubing. The device includes a heat shrinkable polymer, having a diameter reducing release temperature, formed into a band. The band has a first nominal inside diameter defined as the diameter the band assumes upon being shrunk in free space and being smaller than the outside diameter of the connection end of the elastomeric hose and tubing. The band has a second nominal inside diameter defined as the diameter the band assumes upon being shrunk about the connection end of the elastomeric hose and tubing. The band also has a third nominal inside diameter defined as the diameter of the band after polymer orientation and before shrinkage, the third diameter being greater than the outside diameter of the connection end of the elastomeric hose and tubing. The first inside diameter is no greater than about 80 percent of the third inside diameter.

Abstract: A coupling device is adapted for attachment to an elastomeric tubular body having integral, looped reinforcement fibers as part of a tubular assembly. The coupling device includes a coupling member, a stem and a mechanism for retaining the elastomeric tubular body in sealing engagement with the stem when connected therewith. The retaining mechanism maintains this engagement by being interposed within loops of the reinforcement fibers to limit axial movement of the reinforcement fibers relative to the stem. Thus, the grommet retained coupling and the elastomeric tubular body are maintained in spaced relation to and sealing engagement with each other.

Abstract: A coupling member of the type having a generally tubular body portion with a recessed annular element having a sealing surface portion, a swivel nut attached to the body portion and wherein the swivel nut has a concave frustoconical surface for engaging a second coupling member.

Abstract: An endless power transmission belt has an elastomeric body portion, load carrying members embedded in the body portion, and a power transmitting surface integral with the body portion. The elastomeric body portion further includes material to mitigate unstable frictional behavior of the body portion responsible for initiating self-excited vibration at the power-transmitting surface.

Abstract: A ferrule for attaching a hose end portion to a male-stem, the ferrule having a tubular socket portion that retains a bendable sleevelike insert having substantially a C-shape when viewed in cross-section. Oppositely facing circumjacent edges of the C-shaped insert may have teeth as a means for interdigitating with each other when the ferrule is used to couple hose.

Abstract: Crimping apparatus includes a pair of coaxial rings, at least one of which is axially moveable toward and away from the other ring. Each ring is provided with a single pair of force reactive adjoining steep and shallow concave frustoconical surfaces which face each other. A plurality of circumjacent, radially arranged crimping members are positioned intermediate the rings. Each crimping member has two pairs of steep and shallow force reactive convex frustoconical surfaces that slidably engage with the concave force reactive surfaces of the rings to radially move the crimping members to and from the ring axis between an open position and a crimping position. The radial movement of the crimping members is in response to axial movement of at least one of the rings. The crimping apparatus also includes means for maintaining the crimping members in alignment while they are moved between the open and crimping positions.

Abstract: A flexible boot of the polymeric type for use with a universal joint where the boot has a radially outermost generally tubular wall section that interconnects to the boot body by oppositely facing peaks and valleys. The thickness of the boot sidewall is controlled to effect desire bending where, in one embodiment, peaks and valleys are thicker than an adjoining sidewall of a corrugation.

Abstract: A loading apparatus for slidably loading a plurality of circumjacent, radially arranged crimping members into the crimping member holders provided in the head of a crimping apparatus.

Abstract: Crimping apparatus includes a pair of coaxial rings, at least one of which is axially moveable toward and away from the other ring. Each ring is provided with a single pair of force reactive adjoining steep and shallow concave frustoconical surfaces which face each other. A plurality of circumjacent, radially arranged crimping members are positioned intermediate the rings. Each crimping member has two pairs of steep and shallow force reactive convex frustoconical surfaces that slidably engage with the concave force reactive surfaces of the rings to radially move the crimping members to and from the ring axis between an open position and a crimping position. The radial movement of the crimping members is in response to axial movement of at least one of the rings.

Abstract: A molded elastomer having high and low temperature resistance in dynamic applications. The elastomer includes the reaction product of an amine or hydroxy terminated polyol having an unsaturated level of less than about 0.06 milliequivalents per gram polyol, an hydroxyl or amine terminated chain extender, and a polyisocyanate-containing prepolymer capable of rapid reaction times with said chain extender when admixed together in a mold.

Abstract: A gripping inflatable packer having an elastomeric bladder expandable to sealingly engage the outer surface thereof against the wall surface of the well bore to effectively inhibit the passage of well fluid through the well bore. The gripping inflatable packer has an elastomeric bladder with an outer surface sized and shaped to provide a portion that is engageable with the wall bore wall surface, upon expansion thereof. The engageable surface portion has a middle band portion extending cylindrically around the outer surface, and first and second shoulder portions disposed on either side of the middle band portion. Each shoulder portion extends cylindrically around the outer surface. The gripping inflatable packer also has a mechanism for gripping the wall surface of the well bore upon expansion of its bladder. This gripping mechanism includes at least one gripper device attached to the outer surface of the elastomeric bladder.

Abstract: The invention is an improved fluid transport conduit coupling having a substantially tubular stem defining a central bore terminating at each end in first and second perimeter openings, a conduit insert including a body member having opposing first and second portions and adapted to receive said stem, and latching means for limiting axial movement between the stem and the conduit insert upon sealing engagement of the stem and the conduit insert. The improvement includes a latch support means disposed on the stem and at least one disengagement slot proximate the first perimeter opening, and at least one radially deflectable locking beam extending substantially axially from the first portion of the body member conduit insert.

Abstract: An inflatable packer is disclosed and includes an elastomeric tubular body adapted for radial expansion and having a longitudinal axis. The packer includes an elastic outer cover surrounding said tubular body, and coupling members disposed on each end of the tubular body. A plurality of substantially concentric reinforcing layers are stacked atop each other and sandwiched between the body and the cover. Each layer includes spirally wound reinforcing members extending the length of the body between the coupling members. The reinforcing members and each of layers has a uniform lay angle at any circumferential position along the length of the body, with a lay angle of the members in one of the layers differing from the lay angles of the remaining layers at the same circumferential position along the length of the body.