Improved mine rescue breathing apparatus. Final report, Jul 1972-Oct 1974

Technical Report · Thu Oct 24 04:00:00 EDT 1974

OSTI ID:7366261

Ryback, W H

The objective of the research was to design, build, and test a self-contained cryogenic breathing apparatus suitable for a 4-hour period of mine rescue work and weighing 20 pounds or less. The program led to the development of a 28-pound breathing apparatus. The system is unique in that an oxygen liquefier and storage dewar are integral to the apparatus. Lithium hydroxide is used to absorb CO/sub 2/. Liquid level is sensed by an electronic device sensitive to total amount of liquid present, regardless of dewar orientation. The breathing apparatus failed to receive prototype approval from the National Institute of Occupational Safety and Health and Mining Enforcement and Safety Administration. The device would require considerable additional development to be brought to a successful preproduction prototype. (GRA)

• Research Organization: Kinergetics, Inc., Tarzana, Calif. (USA)
• OSTI ID: 7366261
• Report Number(s): PB-241105
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
016000 -- Coal
Lignite
& Peat-- Health & Safety
42 ENGINEERING
420202* -- Engineering-- Protective Structures & Equipment
ALKALI METAL COMPOUNDS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
COAL MINES
COAL MINING
CRYOGENIC FLUIDS
CRYOGENICS
DESIGN
ELEMENTS
FLUIDS
HYDROGEN COMPOUNDS
HYDROXIDES
LITHIUM COMPOUNDS
LITHIUM HYDROXIDES
MINERS
MINES
MINING
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PERFORMANCE TESTING
PERSONNEL
RESPIRATION
RESPIRATORS
TESTING