Respirators

Details Respirators Respirators

1978-11-09

1983-09-20

Tudor, Harold J.

Surgery

Respiratory method or device

Including body or head supported means covering user's scalp

12820128, A61M 1500, A62B 1800

Patent

active

044049692

ABSTRACT:
For or attached to an aircrew respirator of the type having a hood with a cowl and visor enveloping at least the face of a user and a mask for delivering respirable air and oxygen to the user, means for maintaining a gas pressure within the hood but outside the mask greater than that outside the hood and means for preventing misting of a visor portion thereof, a non-respirator borne apparatus for controlling and supplying the required amounts of clean oxygen and air to the respirator in all conditions. The apparatus comprises a control unit and ducting assembly, the ducting being adapted for communication between the unit and the respirator and the control unit having a normal hood cavity supply facility, a normal mask breathable gas supply facility, and being mountable on the person remote from the respirator.

REFERENCES:
patent: 2066706 (1937-01-01), Walters
patent: 2804071 (1957-08-01), Johnston
patent: 2861568 (1958-11-01), Quilter et al.
patent: 3149632 (1964-09-01), Colley
patent: 3456642 (1969-07-01), Cupp
patent: 3680555 (1972-08-01), Warncke
patent: 3768466 (1973-10-01), Johnson
patent: 3927668 (1975-12-01), Raschke
patent: 4148311 (1979-04-01), London et al.

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