.~ By telescoping cylinder means in continuous communication
DEFINITION
Classification: 401/170
(under subclass 143) Implement including a reservoir* which comprises a hollow elongated member open, completely or partially, at one end, and the means to apply force on the material comprises a second hollow elongated member open at one end, and wherein the members are movable, one within the other, with their open ends facing in interior unbroken flow relation and in outwardly sealed relation with one another, so as to change the combined length of the structure and thus apply forced on the material* in the reservoir.
(1) Note. The cylinder may serve as part of the reservoir or
it may only be a gas-filled chamber for applying pressure or suction on the material in the container, but it cannot serve as a feeder*.
(2) Note. A similar structure provided with a valved partition at the open end of either member, which interrupts communication between the two, will be found in subclass 151 or 187+. However, where the partition is merely apertured to permit continuous communication therethrough, the patent will be placed in this subclass, even though the aperture may be temporarily blocked by closure means which is manually adjusted or removed prior to the force-applying actuation, so that the telescopic members are in fact, open toward one another all during the actuation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
151, for a similar structure wherein the open end of either member is obstructed by a valve for controlling flow of material therethrough, and telescopic movement of the members forces material through the valve.
157, for an implement wherein cylinders are telescoped to compress enclosed gas and thereby deform a flexible-wall reservoir. 171, for a reservoir and force-applying piston combination including a feeder extending through the piston.
187+, for a similar structure wherein the open end of either member is obstructed by a valve and relative movement of the members forces or sucks gas through the valve.
