Ventilation – Having inlet airway – Including automatic control means
Patent
1996-12-04
1998-02-24
Joyce, Harold
Ventilation
Having inlet airway
Including automatic control means
F24F 1100
Patent
active
057206597
ABSTRACT:
A fire protection system and method supplies life-sustaining air to occupants taking refuge in the bathrooms of a building. Upon sensing a fire, the system automatically drains water from the building's hot water re-circulating loop. The loop drains rapidly due to the loop's automatic vent valve and re-circulating pump. Fresh air selected from among number of sources is then injected into the loop at a rather low pressure. The low pressure actuates a low pressure relief valve located at each bathroom sink. The valves automatically release the fresh air into each bathroom. If there is any exhaust vent in any of the bathrooms, it is equipped with an automatic damper that seals in the fresh air and prevents a back draft of smoke.
REFERENCES:
patent: 4380187 (1983-04-01), Wicks
patent: 4467796 (1984-08-01), Beagley
patent: 4928583 (1990-05-01), Taylor et al.
Harter Robert J.
Joyce Harold
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