.~.~ Including rotating load confining means (e.g., tumbler)
DEFINITION
Classification: 198/658
(under subclass 657) Apparatus wherein the helical surface formation extends from or is integral with the inner surface of a rotatable tubular member.
(1) Note. Included herein is, for example, a device wherein (a) the helical configuration extends across the diameter of the tubular member, (b) the helical configuration is formed from a plurality of members extending radially inward toward the axis of rotation, and (c) the helical configuration is formed by the inner surface of the hollow tubular member.
