Diaphragm assembly for scuba diving regulator

Details Diaphragm assembly for scuba diving regulator Diaphragm assembly for scuba diving regulator

1983-05-04

1985-04-02

Recla, Henry J.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

137494, 92101, A62B 704

Patent

active

045081182

ABSTRACT:
A diaphragm for a scuba diving regulator incorporates a contact member in the form of an axially thin spool cast or fabricated of low friction material. The contact member is installed at a central aperture of the diaphragm so that the end plates or flanges of the spool closely encompass the diaphragm on opposite sides. One of the flanges is located on the outside of the diaphragm, and the other is located on the inside, to be engaged by the actuating lever of the demand valve. No special sealing means need be provided about the spool, since the pressure difference between the ambient water and the air in the breathing chamber is always small, whatever be the depth of the diver in the water, but effective to maintain the seal.

REFERENCES:
patent: 2758596 (1956-08-01), Cupp
patent: 4386624 (1983-06-01), Christianson

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