Surgery – Respiratory method or device – Draw-type snorkel
Patent
1996-06-10
1997-09-30
Millin, Vincent
Surgery
Respiratory method or device
Draw-type snorkel
12820127, A62B 762
Patent
active
056717288
ABSTRACT:
A snorkel pump comprising a pair of tubular members, one of which is moveable in coaxial slidable engagement with the other, and both of which are in fluid communication with the remaining length of the snorkel tube. The pump also comprises a pair of one-way valves coaxially spaced depending upon the relative positions of the two tubular members and a spring positioned between the two valves to compressively resist and thus facilitate reciprocal motion of the moveable tubular member relative to the other. Such reciprocal motion creates a suction effect which draws water away from the mouthpiece region and propels it through the two valves and out the bottom end of the snorkel tube. The mouthpiece support is formed as an integral part of one such tubular member which is, in turn, secured axially to the remaining elongated section of the snorkel tube. The moveable tubular member of the pump provides one of the two valves and the other, a fixed tubular member, provides the other of the two valves. The valves may be mushroom flap-type valves which are configured to permit water flow in only a unitary direction away from the mouthpiece and toward the bottom or lower end of the snorkel.
REFERENCES:
patent: 4708135 (1987-11-01), Arkema
patent: 5193530 (1993-03-01), Gamow et al.
patent: 5438977 (1995-08-01), Gomez et al.
patent: 5535734 (1996-07-01), Lu et al.
Hermansen Frank
Winefordner Carl
Deane, Jr. William J.
Millin Vincent
Sheico USA
Tachner Leonard
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