Air feed valve and exhaust valve to be attached to an underwater

Details Air feed valve and exhaust valve to be attached to an underwater Air feed valve and exhaust valve to be attached to an underwater

1995-11-01

1997-12-16

Chambers, A. Michael

Fluid handling

Ambient condition change responsive

Underwater

2 215, A62B 1700

Patent

active

056973969

ABSTRACT:
Disclosed is an improved air feed valve to be attached to an underwater suit, responsive to a water pressure P measured at a selected point A of the underwater suit for permitting air to flow to the inside of the underwater suit at a predetermined flow rate from an associated compressed air cylinder via its primary pressure-reduction valve and tube, thereby keeping the inner air pressure of the underwater suit at a given value. The air feed valve is set for operation so as to feed air at such a flow rate that the inner air pressure of the underwater suit may be kept at a pressure lower than the pressure P-.sub..DELTA. P measured at a position A-X which is closer by a given distance X to the water surface than the selected point A of the underwater suit.

REFERENCES:
patent: 3568209 (1971-03-01), O'Neill et al.
patent: 3720208 (1973-03-01), Aldrich et al.
patent: 4229832 (1980-10-01), Dickson, Jr.
patent: 4674429 (1987-06-01), Buckle et al.

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