Cap for containers used to store volatile liquids

Details Cap for containers used to store volatile liquids Cap for containers used to store volatile liquids

1988-03-28

1988-12-13

Norton, Donald F.

Receptacles

Closures

With condition responsive vent or valve

220371, 220374, B65D 516

Patent

active

047904453

ABSTRACT:
A cap for containers used to store volatile liquids is provided characterized by a gas venting port formed in the main body of the cap which is attached to an opening in a container, a filter accomodation space which connects with the aforementioned gas venting port formed in the bottom surface of the main body of the cap, a channel formed in the central portion of a filter assembly installed in the aforementioned filter accomodation space, two hydrophobic porous filter membranes, one installed between the filter assembly and the aforementioned gas venting port and one installed over the innermost end of the aforementioned channel, whereby a liquid passageway is formed, and an aqueous liquid partly, but not completely, fills the interior of the assembly.

REFERENCES:
patent: 1490186 (1924-04-01), Rowe
patent: 2606687 (1952-08-01), Marek
patent: 3385468 (1968-05-01), Fleming et al.

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