Variable proportion dispenser

Details Variable proportion dispenser Variable proportion dispenser

1992-04-02

1993-10-19

Shaver, Kevin P.

Dispensing

With recorder, register, indicator, signal or exhibitor

Position or extent of motion indicator

222 46, 222135, 222137, 222309, B67D 522, B67D 552

Patent

active

052537854

ABSTRACT:
A variable proportion dispenser (2b) includes a housing (180) which houses two pharmaceutical cartridges (6b, 7b). A reciprocating drive assembly includes drive stems (36b, 37b) extending from the pistons (46b, 46c) of each cartridge, a sliding body (66b) mounted to the housing, and two one-way drivers (198, 232, 234) and threaded dosage adjusters (60b, 61b) carried by the sliding body. Each one-way driver drives the drive stem into the cartridge through a smooth drive surface to provide a continuous range of dose selections. The user can thus control the amount and proportion of each pharmaceutical dispensed during each delivery stroke for each dispensing cycle.

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