Fluent material handling – with receiver or receiver coacting mea – Filling or refilling of dispensers – By operation of means causing or controlling dispensing
Patent
1975-07-11
1976-10-12
Knowles, Allen N.
Fluent material handling, with receiver or receiver coacting mea
Filling or refilling of dispensers
By operation of means causing or controlling dispensing
222145, 259 4AC, B65B 2900, B67D 560
Patent
active
039851656
ABSTRACT:
A dosing apparatus is provided which is adapted to aspirate and dispense a first fluid in predetermined amounts. The apparatus includes an elongated tubular member which is connected at one end to a reversible pump for imparting controlled reverse flow of a second fluid within the tubular member during aspirating and dispensing of the first fluid from the opposite end of the tubular member. Disposed within the tubular member is an element for inhibiting the intermixing of the two fluids. A plurality of such elements, which are vaned and baffle-like, are disposed within the tubular member and arranged in end-to-end relation. The vanes of successive baffle elements project outwardly towards the interior surface of the tubular member and are curved longitudinally in opposite directions whereby the fluid flow past the baffle elements is subject to abrupt changes in directions at each successive baffle member. Disposed within the tubular member and positioned between the aspirating and dispensing end and the endmost baffle element is a deflector piece which deflects the aspirated fluid towards the interior surface of the tubular member before the fluid contacts the baffle elements.
REFERENCES:
patent: 3292667 (1966-12-01), Bittner et al.
patent: 3643927 (1972-02-01), Crouch
Magill Robert J.
Martin Manuel I.
Tamir Menachem
G. D. Searle & Co.
Knowles Allen N.
Lane Hadd
Ramm Walter C.
Sgarbossa Peter J.
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