Buoyancy apparatus

Details Buoyancy apparatus Buoyancy apparatus

1975-06-09

1977-07-26

Gilliam, Paul R.

Ships

Building

Canal and ferry boats

114270, F16L 104

Patent

active

040374254

ABSTRACT:
A plurality of buoyancy tanks are connected at spaced intervals to a pipeline, each having an opening in the bottom thereof, a remotely-controlled pressure air line is connected to a normally closed water-controlled air inlet valve and an outlet valve of each tank which is closed by said air, and water entering the tank opening the inlet valve and then shutting off of the air pressure in the air line permitting the outlet valve to open.

REFERENCES:
patent: 3633369 (1972-01-01), Lawrence
patent: 3765185 (1973-10-01), Peck et al.

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