Water gate

Details Water gate Water gate

1975-04-14

1976-08-17

Shapiro, Jacob

61 8, E02B 704

Patent

active

039746550

ABSTRACT:
A water gate for a waterway in two species, in one of which an inflatable and deflatable barrier is provided in side and bottom recesses, the gate being in a closed position when the barrier is inflated and an open position when the barrier is deflated, the other of the species providing a curtain which may be raised or lowered by inflating or deflating a balloon disposed at the top of the curtain.

REFERENCES:
patent: 2568751 (1951-09-01), Larsen
patent: 3173269 (1965-03-01), Imbertson
patent: 3779020 (1973-12-01), Muramatsu
patent: 3786638 (1974-01-01), Fish

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