.~ By the weight of the material in the supply container
DEFINITION
Classification: 222/58
(under subclass 52) Dispensers having means responsive to the weight of material in the supply container for controlling the discharge.
(1) Note. Valves or closures operated directly by material weight are not included (see note 1 to subclass 52), but movably mounted containers, self-adjusting by weight of their contents, and cut-offs interconnected to a relatively movable wall, false wall, or baffle which responds to varying weights in the container are here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
332, 375, 380, 387, 396, 490, and 491+, for various combinations including valves, closures, and movable nozzles directly operated by the pressure or flow of material.
SEE OR SEARCH CLASS
137, Fluid Handling,
403+, for fluid handling systems controlled by the weight of accumulated fluid.
406, Conveyors: Fluid Current,
24+, and 32+ for conveyors controlled by the weight of the load in an intake receptacle.