Chemical apparatus and process disinfecting – deodorizing – preser – For deodorizing of – or chemical purification of – or... – Including means adding material into environmental gas
Patent
1978-10-19
1982-08-03
Marcus, Michael S.
Chemical apparatus and process disinfecting, deodorizing, preser
For deodorizing of, or chemical purification of, or...
Including means adding material into environmental gas
12820226, 422116, 422117, 422120, 422166, A62B 708, B01J 700
Patent
active
043427251
ABSTRACT:
An oxygen supply apparatus, particularly for use by a coal miner, has a plurality of housings mounted on a belt, which is worn by the miner, with each housing having a cartridge of oxygen generating material therein and removable from the bottom thereof for replacement. Each housing has a cover with a resiliently biased shaft supported thereby for relative movement to activate the oxygen generating material in the cartridge. The shaft functions as a timer activator so that the timer is set when the shaft is activated. The timer produces an alarm signal just prior to the expiration of time for depletion of oxygen from the cartridge within the housing. Each of the covers has a chamber receiving the oxygen from the cartridge and supplying it through tubing to oxygen receiving means worn by the miner such as a mask, for example. A ball check valve is disposed in the tubing from the cover prior to a main tubing so that oxygen from any of the cartridges can flow only to the mask while another of the cartridges is substituted in one of the housings for a depleted cartridge.
REFERENCES:
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patent: 2818066 (1971-12-01), Glidden
patent: 3527214 (1970-09-01), Rio
patent: 3536456 (1970-10-01), Bovard
patent: 3565068 (1971-02-01), Bickford
patent: 3736104 (1973-05-01), Churchill et al.
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patent: 3756785 (1973-09-01), Nettleland
patent: 3767367 (1973-10-01), Rio
patent: 3955931 (1976-05-01), Thompson
patent: 4019507 (1977-04-01), Oetjen et al.
patent: 4140765 (1979-02-01), Martin et al.
JRC; SOS. (Solid Oxygen System).
S.O.S. Tech. Data Sheet 3445-C, Model 415.
Kramer Raymond F.
Marcus Michael S.
Preiser Scientific, Incorporated
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