Dispensing device having ratchet member

Details Dispensing device having ratchet member Dispensing device having ratchet member

1981-03-31

1983-11-08

Rolla, Joseph J.

Dispensing

With discharge assistant

With discharge volume varying means

222 43, 222391, B67D 542

Patent

active

044137605

ABSTRACT:
This invention relates to a dispensing device (1) suitable for use in dispensing a predetermined quantity of material from a container comprising a tubular body member (2) having an outlet (6) at one end, and a plunger (17) slidably movable in said body member. The dispensing device comprises an elongate body (3), and a first drive member (10) mounted in the body (3) for use in driving said plunger (17).
According to the invention the first drive member (10) is mounted for driving engagement via an unidirectional drive transmission (12,13), with a second drive member (14) having a free end (15,16) drivingly engagable with the plunger (17) of the container, so that said second drive member (14) and the plunger (17) can be driven by the first drive member (10) via the unidirectional drive transmission members (12,13), only in a direction towards the container outlet (6) while permitting return movement of the first drive member (10).

REFERENCES:
patent: 1997129 (1935-04-01), Taylor et al.
patent: 2605763 (1952-08-01), Smoot
patent: 2718299 (1955-09-01), Atwater et al.
patent: 3348545 (1967-10-01), Sarnoff et al.
patent: 3613952 (1971-10-01), Gilmont

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