US PATENT SUBCLASS 198 / 667
.~.~.~.~ With intermediate drive

Current as of: June, 1999
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198 /   HD   CONVEYORS: POWER-DRIVEN

618  DF  CONVEYOR SECTION {26}
657  DF  .~ Screw {11}
662  DF  .~.~ Plural helical surface formations {4}
666  DF  .~.~.~ Coupled end-to-end {2}
667.~.~.~.~ With intermediate drive

DEFINITION

Classification: 198/667

(under subclass 666) Apparatus wherein the coupled formations are driven by way of a member (gear, pulley, sprocket wheel, etc.) which is located between the formations at, or in the vicinity of, the coupling.

(1) Note. When the surfaces are provided with housing members, a means to seal the spaced, confronting ends of the latter usually is involved.