US PATENT SUBCLASS 198 / 621.2
.~.~.~ Load support member lifted by inclined or vertical supporting fluid actuator (e.g., piston or air bag)

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

618  DF  CONVEYOR SECTION {26}
620  DF  .~ Load simultaneously engaged between and moved by a plurality of driven conveyor members {5}
621.1  DF  .~.~ Reciprocating member {3}
621.2.~.~.~ Load support member lifted by inclined or vertical supporting fluid actuator (e.g., piston or air bag)

DEFINITION

Classification: 198/621.2

Load support member lifted by inclined or vertical supporting fluid actuator (e.g., piston or air bag):

(under subclass 621.1) Subject matter wherein an element directly holding the load is raised from a lower to a higher

position by a sloping or perpendicular hydraulic elevating mechanism such as a linearly expandable device moving back and forth under fluid pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

774.2, for a similar lifting means used in an alternately-acting load support member.