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Class Information
Number: 128/204.26
Name: Surgery > Respiratory method or device > Means for supplying respiratory gas under positive pressure > Gas supply means responsive to breathing
Description: Subject matter wherein the gas supply means is responsive to the user’s breathing.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4798202 |
Compressed-air breathing apparatus for underwater diving |
Jan. 17, 1989 |
| 4796619 |
Lung-controlled valve for respirator masks having positive pressures inside the mask |
Jan. 10, 1989 |
| 4796618 |
Breathing regulator apparatus |
Jan. 10, 1989 |
| 4793340 |
Breathing system for divers |
Dec. 27, 1988 |
| 4784129 |
Breathing regulator |
Nov. 15, 1988 |
| 4784130 |
Flow controller |
Nov. 15, 1988 |
| 4750485 |
Portable emergency breathing apparatus |
Jun. 14, 1988 |
| 4744356 |
Demand oxygen supply device |
May. 17, 1988 |
| 4741332 |
Equipment for protecting personnel from contamination |
May. 3, 1988 |
| 4715371 |
Lung-controlled diaphragm valve |
Dec. 29, 1987 |
| 4711263 |
Double-acting valve system for underwater breathing or the like |
Dec. 8, 1987 |
| 4705034 |
Method and means for dispensing respirating gases by effecting a known displacement |
Nov. 10, 1987 |
| 4693242 |
Coupling connectors for respirator masks |
Sep. 15, 1987 |
| 4691700 |
Anaesthetical circuit with reverse inhalation equipped with an injector of escaped anaesthetics |
Sep. 8, 1987 |
| 4683881 |
Breathing regulator mouthpiece |
Aug. 4, 1987 |
| 4676238 |
Second stage air regulator for underwater breathing |
Jun. 30, 1987 |
| 4674493 |
Underwater breathing apparatus |
Jun. 23, 1987 |
| 4667670 |
Gas flow control valves |
May. 26, 1987 |
| 4651731 |
Self-contained portable single patient ventilator/resuscitator |
Mar. 24, 1987 |
| 4648397 |
Electronically compensated pressure dilution demand regulator |
Mar. 10, 1987 |
| 4640277 |
Self-contained breathing apparatus |
Feb. 3, 1987 |
| 4633868 |
Closed circuit type respirator |
Jan. 6, 1987 |
| 4630605 |
Respirator control device |
Dec. 23, 1986 |
| 4616645 |
Diving regulator with anti free-flow vane |
Oct. 14, 1986 |
| 4608976 |
Breathing protective apparatus with inhalation and exhalation regulator |
Sep. 2, 1986 |
| 4606339 |
Control valve for a breathing mask |
Aug. 19, 1986 |
| 4592384 |
Commutator feeding device for a demand valve intended for introducing breathable air into a compressed air breathing apparatus |
Jun. 3, 1986 |
| 4575042 |
Pneumatically amplified conservation valve |
Mar. 11, 1986 |
| 4574797 |
Diaphragm and exhaust valve for second stage regulator |
Mar. 11, 1986 |
| 4572175 |
Multi-mode demand valve |
Feb. 25, 1986 |
| 4572176 |
Control for a protective mask which operates with excess internal pressure |
Feb. 25, 1986 |
| 4567888 |
Device for treating respiratory deficiency of a patient |
Feb. 4, 1986 |
| 4554916 |
Rotary proportioning inhalator |
Nov. 26, 1985 |
| 4527558 |
Scavenger system |
Jul. 9, 1985 |
| RE31932 |
Diaphragm assembly for the demand regulator of a breathing apparatus |
Jul. 2, 1985 |
| 4519387 |
Respirating gas supply method and apparatus therefor |
May. 28, 1985 |
| 4508118 |
Diaphragm assembly for scuba diving regulator |
Apr. 2, 1985 |
| 4503852 |
Pilot controlled regulator second stage |
Mar. 12, 1985 |
| 4498471 |
First and second stage regulator system for breathing gas |
Feb. 12, 1985 |
| 4498470 |
Respirator having circulating breathing gas |
Feb. 12, 1985 |
| 4494537 |
Breathing apparatus for supplying fluid to a user on demand |
Jan. 22, 1985 |
| RE31785 |
Breathing valve assembly with diaphragm control of the exhaust ports |
Jan. 1, 1985 |
| 4484578 |
Respirator apparatus and method |
Nov. 27, 1984 |
| 4467797 |
Breathing effort reduction device for scuba gear |
Aug. 28, 1984 |
| 4462398 |
Respirating gas supply method and apparatus therefor |
Jul. 31, 1984 |
| 4460089 |
Protective case for a second stage breathing apparatus |
Jul. 17, 1984 |
| 4457303 |
Respirating gas supply control method and apparatus therefor |
Jul. 3, 1984 |
| 4449524 |
Self-contained breathing apparatus with provision for shared use |
May. 22, 1984 |
| 4448192 |
Medical ventilator device parametrically controlled for patient ventilation |
May. 15, 1984 |
| 4446859 |
Breathing apparatus |
May. 8, 1984 |
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