US PATENT SUBCLASS 128 / 200.24
RESPIRATORY METHOD OR DEVICE

Current as of: June, 1999
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128 /   HD   SURGERY

200.24RESPIRATORY METHOD OR DEVICE {32}
200.25  DF  .~> Artificial gill, or means for separating entrained air from liquid stream
200.26  DF  .~> Means placed in body opening to facilitate insertion of breathing tube
200.27  DF  .~> Gas stream directed away from face mask to penetrate contaminated atmosphere
200.28  DF  .~> Body or head supported means, other than face mask or hood, with gas stream to screen face or penetrate contaminated atmosphere
200.29  DF  .~> Underwater exhalation dispersing means
201.11  DF  .~> Draw-type snorkel
201.12  DF  .~> Corrective or magnifying lens combined with face mask having eyepiece or transparent viewing portion
201.13  DF  .~> Inhaled gas heated or humidified by exhaled gas
201.14  DF  .~> Viewing strip slidable relative to mask
201.15  DF  .~> Means for keeping viewing member (e.g., eyeglass, transparent face shield, etc.) clear {2}
201.18  DF  .~> Means for preventing nasal inhalation
201.19  DF  .~> Means for transmitting, or facilitating, voice communication from face mask, hood, or helmet
201.21  DF  .~> Using liquified oxygen
201.22  DF  .~> Including body or head supported means covering user's scalp {1}
202.12  DF  .~> Hypobaric body chamber
202.13  DF  .~> Combined with or convertible to a nonrespiratory device, or having nonrespiratory function other than hyperbaric treatment {5}
202.21  DF  .~> Smoking device simulator
202.22  DF  .~> Means for indicating improper condition of apparatus
202.23  DF  .~> Means for preventing electric shock or arcing
202.24  DF  .~> Means for protecting user from pressure wave or flame resulting from gas ignition
202.25  DF  .~> Ozone or ion generation
202.26  DF  .~> Gas produced by electrolysis or chemical reaction
202.27  DF  .~> Means for quickly connecting or disconnecting apparatus components
202.28  DF  .~> Means using rescuer's breath for supplying respiratory gas to another person {2}
203.12  DF  .~> Means for mixing treating agent with respiratory gas {16}
204.15  DF  .~> Means for cooling respiratory gas or respiration device {1}
204.17  DF  .~> Means for heating respiratory gas or respiration device
204.18  DF  .~> Means for supplying respiratory gas under positive pressure {17}
205.27  DF  .~> Means for removing substance from respiratory gas {2}
206.21  DF  .~> Face mask covering a breathing passage {6}
207.14  DF  .~> Respiratory gas supply means enters mouth or tracheotomy incision {3}
207.18  DF  .~> Respiratory gas supply means enters nasal passage

DEFINITION

Classification: 128/200.24

RESPIRATORY METHOD OR DEVICE:

(under the class definition) Subject matter relating to the supply of a breathable gas to, or exhaust of such gas from, a living body.

(1) Note. Respirators claiming a breath flow meter are classified here where the breath flow indication is merely

for monitoring the proper operation of the respirator. Breath flow measurement devices for diagnostic purposes are found in Class 600, subclasses 538+.

(2) Note. Respiratory gas includes gas taken into the body through the skin.

SEE OR SEARCH THIS CLASS, SUBCLASS:

200.11+, for respiration devices claiming means for passing a breathable gas through a body of liquid.

200.14+, for respiration devices claiming atomizer or sprayer means.

SEE OR SEARCH CLASS 95, Gas Separation: Processes, for processes of gas separation, per se.

96, Gas Separation: Apparatus, for apparatus for gas separation, per se.

137, Fluid Handling, appropriate subclasses for valves and flow regulating means not combined with body accommodating means.

251, Valves and Valve Actuation, for a valve, per se.

452, Butchering,

66, for gas chambers used in killing animals for food.