Dispensing – Drip – leakage or waste catching or disposal
Patent
1975-11-24
1976-10-12
Knowles, Allen N.
Dispensing
Drip, leakage or waste catching or disposal
222210, 222214, 222323, 222325, 222468, 222470, B67D 116, B67D 3700
Patent
active
039852687
ABSTRACT:
The dispenser may be in the form of a dispensing gun and is preferably used to dispense a low viscosity material such as a cynoacrylate glue. The dispenser includes a handle and a holder supported from the handle. The holder comprises a body defining a chamber in which the glue bottle is disposed and an end cap having a nozzle and into which the bottle is threadedly engaged. The handle has a venturi tube therein which receives a pressurized air flow and couples the air flow to the holder, and a valve means coupled to the venturi tube. When the valve means is open the pressurized air is vented to the atmosphere causing a partial vacuum (negative pressure) in the holder on the bottle thereby sucking any excess material into the bottle. When the valve means is operated to its closed position the pressurized air is directed to the holder causing the bottle to contract and thereby force metered amounts out of the nozzle of the dispenser.
REFERENCES:
patent: 2838210 (1958-06-01), Detrie et al.
patent: 3258176 (1966-06-01), Raczynski
patent: 3871553 (1975-03-01), Steinberg
patent: 3938709 (1976-02-01), Collar
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