Aquatic camera

Details Aquatic camera Aquatic camera

1984-02-09

1985-11-19

Blix, Trygve M.

Ships

Building

Observation boats

441135, 354 76, B63B 3500

Patent

active

045534942

ABSTRACT:
An aquatic camera apparatus consisting of a transparent screen separating an upper dark dry chamber from a lower vacuum wet chamber. The upper dark chamber is provided with a folding camera obscura and a looking mask for the viewer. A drainage valve is provided over the transparent screen for cleaning it and a vacuum valve is provided on top of the wet chamber expelling the air from inside. The device can be used manually or mechanically, outboard or inboard from any watercraft for the purpose of searching the flora and fauna inside any body of clear water. The device can be also used as a direct fishing aid, or for taking underwater photographs.

REFERENCES:
patent: 756244 (1904-04-01), Larson
patent: 1149678 (1915-08-01), Parker
patent: 1763464 (1930-06-01), Gunderson et al.
patent: 2001682 (1935-05-01), Jackman
patent: 4228751 (1980-10-01), Robertson et al.
patent: 4465468 (1984-08-01), Deacy

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