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Class Information
Number: 128/205.12
Name: Surgery > Respiratory method or device > Means for supplying respiratory gas under positive pressure > Means for removing substance from respiratory gas
Description: Subject matter including means for removing a substance from gas breathed by a living thing.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4538605 |
Anesthetic apparatus |
Sep. 3, 1985 |
| 4534344 |
Breathing apparatus and facemasks therefor |
Aug. 13, 1985 |
| 4534346 |
Pressure swing cycle for the separation of oxygen from air |
Aug. 13, 1985 |
| 4522639 |
Unified filter and connector housing assembly incorporating a diversion valve |
Jun. 11, 1985 |
| 4506667 |
Self-contained ventilator/resuscitator |
Mar. 26, 1985 |
| 4502480 |
Helmet equipped with device for supplying atmospheric air |
Mar. 5, 1985 |
| 4498470 |
Respirator having circulating breathing gas |
Feb. 12, 1985 |
| 4478216 |
Portable air filtration device |
Oct. 23, 1984 |
| 4476708 |
Flow controller |
Oct. 16, 1984 |
| 4471774 |
Oxygen breathing apparatus simulator using supplemental oxygen |
Sep. 18, 1984 |
| 4465485 |
Suction canister with unitary shut-off valve and filter features |
Aug. 14, 1984 |
| 4461291 |
Respirator |
Jul. 24, 1984 |
| 4459981 |
Breathing bag for closed cycle respirator |
Jul. 17, 1984 |
| 4457305 |
Water trap assembly |
Jul. 3, 1984 |
| 4456008 |
Respiratory apparatus and method |
Jun. 26, 1984 |
| 4456014 |
Flow restrictor |
Jun. 26, 1984 |
| 4453543 |
Anaesthesia--breathing apparatus |
Jun. 12, 1984 |
| 4446869 |
Water absorbing trap to protect an infrared exhaled carbon dioxide apnea monitor of a patient's respiration |
May. 8, 1984 |
| 4445012 |
Moisture sensor for purging system |
Apr. 24, 1984 |
| 4440177 |
Respiratory analyzer system |
Apr. 3, 1984 |
| 4440165 |
Closed-circuit breathing apparatus |
Apr. 3, 1984 |
| 4430994 |
Respiratory gas heating and humidifying methods and apparatus |
Feb. 14, 1984 |
| 4430995 |
Power assisted air-purifying respirators |
Feb. 14, 1984 |
| 4428372 |
Process and apparatus for providing breathing gas |
Jan. 31, 1984 |
| 4423723 |
Closed cycle respirator with emergency oxygen supply |
Jan. 3, 1984 |
| 4417574 |
Liquid drain for patient breathing apparatus |
Nov. 29, 1983 |
| 4409978 |
Portable, self-contained breathing apparatus |
Oct. 18, 1983 |
| 4391271 |
Respirator circuit |
Jul. 5, 1983 |
| 4386948 |
Filter drive |
Jun. 7, 1983 |
| 4382806 |
Method for separating water from a gas sample |
May. 10, 1983 |
| 4365628 |
Avalanche survival vest |
Dec. 28, 1982 |
| 4364384 |
Excess pressure respirator with pressurized breathing gas shutoff |
Dec. 21, 1982 |
| 4362153 |
Breathing apparatus |
Dec. 7, 1982 |
| 4360018 |
Anesthesia system and method of filtering respiratory gas |
Nov. 23, 1982 |
| 4359048 |
Automatically startable oxygen rescue device |
Nov. 16, 1982 |
| 4353366 |
Carbon dioxide absorber |
Oct. 12, 1982 |
| 4350662 |
Carbon dioxide absorbent canister with breathing gas temperature and flow control |
Sep. 21, 1982 |
| 4333451 |
Positive pressure breathing apparatus with condensate removal |
Jun. 8, 1982 |
| 4331141 |
Arrangement for protection of organs of respiration |
May. 25, 1982 |
| 4327718 |
Continuously draining trap for removal of condensate from a patient breathing circuit |
May. 4, 1982 |
| 4320755 |
Air supply units |
Mar. 23, 1982 |
| 4304578 |
Water separator for a gas analyzer |
Dec. 8, 1981 |
| 4301792 |
Respirator with cooling device |
Nov. 24, 1981 |
| 4299216 |
Self-contained closed circuit breathing apparatus having a balanced breathing resistance system |
Nov. 10, 1981 |
| 4298358 |
Gas separating and venting filter |
Nov. 3, 1981 |
| 4273120 |
Underwater breathing apparatus |
Jun. 16, 1981 |
| 4270564 |
Purging system |
Jun. 2, 1981 |
| 4266539 |
Carbon dioxide scrubber and gas regenerator unit for a closed circuit rebreathing apparatus |
May. 12, 1981 |
| 4265235 |
Anesthetic system |
May. 5, 1981 |
| 4265238 |
Simulated oxygen breathing apparatus |
May. 5, 1981 |
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