Dispensing – Resilient wall – Supply container delivering to receiving chamber
Patent
1987-08-28
1989-05-09
Shaver, Kevin P.
Dispensing
Resilient wall
Supply container delivering to receiving chamber
222221, 222212, 222394, 222437, 222440, 222442, 222456, 222464, 222481, G01F 1126
Patent
active
048281492
ABSTRACT:
A dispensing device for dispensing measured doses during each dispensing cycle. A fluid tight bottle is provided with a well at its bottom. A hollow shell fits in the well and includes an opening permitting flow of material from the bottle into the shell. A tubular stem extends from the shell through the top of the bottle and terminates in a dispensing spout. Different embodiments provide different arrangements for supplying air to an air chamber in the top of the bottle so that pressure within the bottle can equalize at the end of each dispensing cycle. If the bottle is not a squeeze bottle, air is supplied to the bottom of the bottle to displace the liquid in the shell which is dispensed through the stem upon inversion of the bottle. Additional embodiments of the invention are specially constructed to dispense powders and to allow the dosage of each dispensing cycle to be adjusted.
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