Dispensing apparatus

Details Dispensing apparatus Dispensing apparatus

1987-08-25

1990-05-15

Rolla, Joseph J.

Dispensing

With filter

Associated with vent passage

222206, 222420, B67D 558

Patent

active

049250655

ABSTRACT:
Apparatus for dispensing a liquid is adapted to be attached to a container such as a test tube. The apparatus includes a hollow, resilient, flexible dispenser having a bore therethrough. One end of the dispenser is attached to the test tube, and the opposite end of the dispenser includes a nozzle apparatus having external and internal nozzle portions and a reverse-taper bore therethrough, i.e., a bore having a diameter which decreases from the external nozzle portion to the internal nozzle portion, the reverse-taper bore being in communication with the interior of the hollow, resilient dispenser.

REFERENCES:
patent: 2107167 (1938-02-01), Sierad
patent: 2811283 (1957-10-01), Bowen
patent: 3482739 (1969-12-01), Laas
patent: 3972812 (1976-08-01), Gresl, Jr.
patent: 4118195 (1978-10-01), Beach
patent: 4526490 (1985-07-01), Welsh

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