US PATENT SUBCLASS 198 / 620
.~ Load simultaneously engaged between and moved by a plurality of driven conveyor members

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

618  DF  CONVEYOR SECTION {26}
620.~ Load simultaneously engaged between and moved by a plurality of driven conveyor members {5}
621.1  DF  .~.~> Reciprocating member {3}
622  DF  .~.~> Oppositely moving members (e.g., doffing, etc.)
623  DF  .~.~> Wherein the velocities of at least two of the members are not equal
624  DF  .~.~> Rotary members {1}
626.1  DF  .~.~> Opposed endless belts {2}

DEFINITION

Classification: 198/620

(under subclass 618) Apparatus having at least two power-driven conveyor sections which cooperate to engage the load between said sections and thereby cause the load to be

moved in a given direction.

(1) Note. A conveyor section is considered to be power-driven if it is motivated by any power means including another power-driven conveyor section if the first section has parts which directly contact the second section from which motion is obtained. The load cannot constitute a power transmission means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

570+, for conveyor systems having plural conveyor sections which may cooperate to grip and move a load, but which, in addition thereto, as a conveyor system, begin the movement of the load by one of the sections, and complete the movement of the load by another of the sections.

604, for a system of conveying sections having coacting conveying elements defining a load path therebetween.

625+, for coacting parallel screw conveyors. 635, for plural conveyor sections which engage the load simultaneously, but wherein one of said sections acts to skim off and reverse the direction of the skimmed off portion to that direction which a cooperating conveyor section causes said load to move.

721, for pusher conveyors having a movable surface upon which the load is supported.

817, for plural endless belt conveyors which cooperate to support a load set across them.

819, for trough-shaped carrier belts having edges which may be brought together to enclose a load.