Dispensing – With filter – Associated with vent passage
Patent
1988-09-30
1992-08-18
Olszewski, Robert P.
Dispensing
With filter
Associated with vent passage
222420, 222215, B67D 558
Patent
active
051391740
ABSTRACT:
An apparatus for dispensing a liquid is provided which is adapted to be attached to a container such as a test tube and includes a hollow resilient dispensing member having a nipple at one end through which a liquid is dispensed in a dropwise manner. The dispensing member is formed of a resilient material which enables liquid to be dispensed therethrough by squeezing the sides of the dispensing member. In a modification, the dispensing member is provided with an internal filter by which fluid can be conveniently filtered as it is dispensed. A method for dispensing a liquid from a container using the apparatus of the present invention is also provided.
REFERENCES:
patent: 2348831 (1944-05-01), Mathis
patent: 2744661 (1956-05-01), Davis
patent: 3333741 (1967-08-01), Radcliffe
patent: 4118195 (1978-10-01), Beach
patent: 4257886 (1981-03-01), Kessler
patent: 4526490 (1985-07-01), Welsh
Helena Laboratories Corporation
Noland Kenneth
Olszewski Robert P.
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