Swivel air lock for airtight connection between submergibles

Details Swivel air lock for airtight connection between submergibles Swivel air lock for airtight connection between submergibles

1975-02-04

1976-10-26

Blix, Trygve M.

Ships

Warships

Armored

61 69A, B63G 824

Patent

active

039877426

ABSTRACT:
An air lock in accordance with the invention is composed of two portions -- stationary hemispherical bell 6 fastened on a submarine rescue device 5 and a swivel skirt 7 in the form of a portion of a swivel joint, nested in the bell with a slight amount of play, bearing a peripheral sealing joint 28 which is applied against the hull 2 of a submarine around an opening 3. Two sealing joints 19 and 15 are placed between the bell and the skirt and the intermediate space 20 is filled with oil maintained at a constant pressure which is slightly different from the hydrostatic pressure.

REFERENCES:
patent: 1772459 (1930-08-01), Grieshaber
patent: 2361868 (1944-10-01), Prassel
patent: 3044812 (1962-07-01), Giovinazzo

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