Portable toilet with vent for flush water supply tank

Details Portable toilet with vent for flush water supply tank Portable toilet with vent for flush water supply tank

1989-02-27

1991-01-08

Cusick, Ernest G.

Baths, closets, sinks, and spittoons

Flush closet

With holding tank

220373, B65D 5116

Patent

active

049824562

ABSTRACT:
A portable toilet having a fill cap covering the fill opening for a flush water tank. The cap includes a lid with an air vent opening and a seal member captivated in a cage extending downwardly from the lid into the tank, the cap being removably mounted on a tube for filling the tank with water. An air path from the atmosphere to tank is defined by the lid vent opening and an annulus around the seal. The cage is inserted into the tube and should the water splash in the tube the seal is forced upwardly and against the vent opening to prevent water from escaping.

REFERENCES:
patent: 2865531 (1958-12-01), Gorst et al.
patent: 3073333 (1963-01-01), Cherrington
patent: 3351497 (1967-11-01), Lucas
patent: 3530882 (1970-09-01), Case
patent: 3939501 (1976-02-01), Sargent
patent: 4180876 (1980-01-01), Sargent et al.
patent: 4624286 (1986-11-01), Frohn
patent: 4666058 (1987-05-01), Harris
patent: 4805660 (1989-02-01), Antos et al.

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