Compressed air respirator

Details Compressed air respirator Compressed air respirator

2006-03-09

2009-08-25

Yu, Justin R (Department: 3771)

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

C128S204230, C128S204260, C128S204210, C128S205130, C128S204220, C128S204180

Reexamination Certificate

active

07578293

ABSTRACT:
A compressed air respirator has prolonged operating time due to a rebreathing feature. The respirator has a compressed air reserve (1) with a connected demand air supply valve (2), wherein the demand air supply valve (2) is connected with a reversible breathing gas reservoir (4) with adjustable volume. A rebreathing line (25) for the user of the apparatus has an expiration valve (88), wherein the rebreathing line (25) is connected with the breathing gas reservoir (4).

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