Snorkel

Details Snorkel Snorkel

1994-11-01

1996-01-30

Burr, Edgar S.

Surgery

Respiratory method or device

Draw-type snorkel

12820127, 12820128, A62B 700, B63C 1100

Patent

active

054873797

ABSTRACT:
Disclosed is an improved snorkel using an adjustable valve mechanism having a rotatable restrictive plate to control the bottom opening area of the tubular body. The snorkel can be adjusted in terms of individual lung capacities so that the expiratory pressure may be applied to the water remaining in the tubular body so as to cause the simultaneous exhaust of the remaining water from the top and bottom ends of the tubular body.

REFERENCES:
patent: 4304229 (1981-12-01), Curtin
patent: 4739987 (1988-04-01), Nicholson
patent: 4805610 (1989-02-01), Hunt
patent: 4838262 (1989-06-01), Katz
patent: 5261396 (1993-11-01), Faulconer et al.
patent: 5267556 (1993-12-01), Feny

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