Surgery – Respiratory method or device – Draw-type snorkel
Patent
1993-02-04
1993-12-07
Burr, Edgar S.
Surgery
Respiratory method or device
Draw-type snorkel
12820714, B63C 1116
Patent
active
052675564
ABSTRACT:
The present invention offers a snorkel with a laterally extended downward opening for air entry and a universally adjustable mouthpiece, specifically, a tube-like lateral extension from the top-end opening of the snorkel tube shares the same air space of the snorkel tube, by sharing the same top-end opening, and then is covered at that shared top-end opening to direct airflow in and out of the snorkel tube to the downward opening of the lateral extension, beneath which an upward-facing, protruding shield is placed, with the shield opening and the downward opening joining on the same plane to block out water while allowing airflow in and out along the protruding opening of the shield; the bottom of the shield is provided with a unidirectional diaphragm with an off-centered shaft for easy drainage; and the height difference between the downward opening and the top-end opening blocks water from entering the snorkel tube when the water level is at the downward opening, even though a little bit of water falls into the shield, it can be easily and naturally drained into the unidirectional diaphragm maintaining the dryness and smoothness inside the snorkel; the lower-end opening of the snorkel tube and the mouthpiece holder are assembled together by the spherical concave wall and the hollow sphere, respectively provided thereto, so that the mouthpiece holder and the mouthpiece thereon can be adjusted to any comfortable and natural angle of use, through the spherical rotation of the hollow sphere along the spherical concave wall.
REFERENCES:
patent: 4782830 (1988-11-01), Forman
patent: 4884564 (1989-12-01), Lamont
patent: 5092324 (1992-03-01), Christianson
patent: 5117817 (1992-06-01), Lin
patent: 5199422 (1993-04-01), Rasocha
"Dacor Integra Snorkels", Susan Waters, Skin Diver Magazine, May 1992, p. 48.
Dacor Integra Advertisement, May 1992.
Burr Edgar S.
Raciti Eric P.
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