Fluid handling – Self-proportioning or correlating systems – Flow rate responsive
Patent
1977-08-15
1980-09-16
Cline, William R.
Fluid handling
Self-proportioning or correlating systems
Flow rate responsive
137118, 137595, G05D 1103
Patent
active
042224020
ABSTRACT:
Dual overlapping fire protection systems include a liquid supply means for supplying liquid under pressure, first and second branch lines connected to the liquid supply means, a plurality of liquid distribution outlets connected to each of the branch lines and located to provide fire protection to a predetermined area, the outlets connected to each branch being located to provide fire protection to the same predetermined area, activating means for automatically activating at least one of the outlets in each branch when a predetermined temperature is sensed, valve means for selectively disconnecting the liquid supply means from the outlets in each branch. The valve is designed to automatically activate the disconnected branch when one of the outlets in the other branch is activated.
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Cline William R.
Factory Mutual Research Corporation
Spiegel H. Jay
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