US PATENT SUBCLASS 128 / 205.17
.~.~.~ Rebreathing bag or bellows

Current as of: June, 1999
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128 /   HD   SURGERY

200.24  DF  RESPIRATORY METHOD OR DEVICE {32}
204.18  DF  .~ Means for supplying respiratory gas under positive pressure {17}
205.13  DF  .~.~ Respiratory gas supplied from expandable bag, bellows, or squeeze bulb {4}
205.17.~.~.~ Rebreathing bag or bellows

DEFINITION

Classification: 128/205.17

Rebreathing bag or bellows:

(under subclass 205.13) Subject matter wherein an expandable bag or bellows enables the user to rebreathe a portion of the exhaled gas.

(1) Note. A rebreathing bag, even when claimed alone, is placed under subclass 205.17 on the basis that, in use, the fully expanded rebreathing bag holds exhaled gases under greater than ambient pressure. Therefor the bag is, at least initially, a means for supplying breathed gas under positive pressure.