Metering dispenser for high viscosity compositions

Details Metering dispenser for high viscosity compositions Metering dispenser for high viscosity compositions

1984-11-02

1987-02-10

Marmor, Charles A.

Dispensing

With discharge assistant

Container with follower

741415, 433 89, 604223, B67D 542

Patent

active

046417664

ABSTRACT:
A dispensing device including a hollow cylindrical body from which a high viscosity composition is discharged in precisely metered doses by a plunger rod longitudinally movable within the body. A series of projection are formed at equispaced, longitudinal intervals from each other on the plunger rod. A pair of parallel actuating arms pivotally mounted on the body extend along opposite side of the plunger rod and are formed with a pair of teeth, respectively, projecting inward toward the rod. By depressing the arms, the teeth pivot into engagement with one of the projections to advance the plunger within the body to expel a desired amount of composition. In a preferred embodiment, advancement of the plunger rod through a precise distance is automatically controlled via contact between the teeth with stop surfaces formed on the next in-line projection.

REFERENCES:
patent: 2541949 (1951-02-01), Thacker et al.
patent: 4189065 (1980-02-01), Herold
patent: 4299337 (1981-11-01), Lassmann et al.
patent: 4416397 (1983-11-01), Brown
patent: 4456450 (1984-06-01), Heling

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