7 Machine coupling and transmission components not for land vehicles, namely, tensioners, sprockets and pulleys, tensioning idlers, variable diameter pulleys, adjustable pulleys, adjustable lock center pulleys, dual pulley tensioning systems for power transmission belts for use with machines and engines; lockable tensioning devices, namely, belt tensioners for maintaining a belt tension on an engine accessory belt drive being parts of engines, machines or motors; belts for engines, motors or machines, namely, power transmission belts, variable speed belts, timing belts, v-ribbed belts, v-belts; crankshaft dampers for use on engines; belts for material handling machines; conveyor belts; belts for linear motion control machines; flexible couplings for coupling rotating shafts in land vehicle engines; caps for engine oil intakes being parts of engines; hose crimping machines; radiator caps for cooling radiators for motors, engines and vehicles; machines parts, namely, flexible couplings for coupling rotatable shafts and transmitting power there between; couplings for use in machinery of all kinds other than those for land vehicles; multi-ribbed belts for machines and engines; fan belts for motors; dynamo belts for use with machines; dynamo alternator decouplers, namely, a clutch to disconnect an alternator depending on a belt load condition for use with machines; couplings for pneumatic apparatus, namely, pneumatic conveyors; machine couplings other than for land vehicles; flexible couplings being parts of machines; machine parts, namely, fluid couplings other than for land vehicles; hydraulic couplings for engines other than for land vehicles, also being parts of machines; hydraulic quick release couplings for high pressure hoses; shaft couplings other than for land vehicles; power transmission couplings not for land vehicles; safety couplings not for land vehicles; industrial motion control components, namely, belts and pulleys for use with machines; timing belts for synchronous conveying, linear positioning and power transmission for machines, motors and engines used in industrial applications; timing belts for machines, motors or engines used in industrial applications including linear belts, profile belts, welded belts, flex belts, wide belts, vacuum belts, self-tracking belts and flat belts; water pumps for land vehicle engines; synchronous belts and drive belts for conveyors or machines; synchronous and toothed belts for industrial applications for use with machines; electronically controlled belt tensioners for use with machines whereby belt tension forces are controlled; engine transmission belts for land vehicles for use with machines; flat belts for vertical movement for use with machines; flat belts wound on shafts for moving or lifting platforms and weights for use with machines; non-metallic belt sprockets and pulleys being parts of machines; power transmission drive components, namely, low modulus belts, clutches and alternator decouplers, parts and components for asynchronous belt drive systems and parts and components for synchronous belt drive systems, other than for land vehicles, namely, timing belts and pulleys; auxiliary power units for use in land vehicles for supplying electrical and mechanical power to the land vehicle when the land vehicle main engine is not operating