Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Closed cycle gas mask and breathing equipment for operation under pressure having a severance-operated connection shut-off for the breathing equipment

Closed cycle gas mask and breathing equipment for operation under pressure having a severance-operated connection shut-off for the breathing equipment

US Patent 4955374 · Granted Sep 11, 1990

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Warning device for a respirator product2006
Gas mask and breathing equipment with liquefied respiration gas1996
Gas mask and breathing equipment with respiration air recirculation1994
Closed circuit breathing device with pressure sensing means1991
Recirculating respirator1991
Recirculating positive-pressure respirator1991
Ventilatory air humidifier for a breathing equipment1991
Protective suit having a supply of breathing air1989
Cycle respirator for pressure operation1987
Respirator control device1986
Device for regenerating respiratory breathing air1986
Attenuator valve for a pressure-gas conduit1986