Fire extinguishers – Fluid systems – Pump supply
Patent
1980-04-21
1982-04-13
Weidenfeld, Gil
Fire extinguishers
Fluid systems
Pump supply
137 88, 13710121, 222 55, 222 63, 222133, 239 61, 239127, A62C 3516
Patent
active
043242944
ABSTRACT:
A system for injecting chemicals into a fire fighting system of the type using a plurality of water hoses and having a source of water and a source of chemicals. A servo motor system is connected to automatically meter a certain ratio of chemicals into the water supply. The servo motor system is responsive to the total flow to control the chemical pump to pump a certain ratio of chemicals into the water supply even if the total flow varies. Various modifications are disclosed.
REFERENCES:
patent: 2349521 (1944-05-01), Schmidt
patent: 2872072 (1959-02-01), Reed
patent: 3038486 (1962-06-01), Thurman
patent: 3115158 (1963-12-01), Sheppard
patent: 3123252 (1964-03-01), Kuntz
patent: 3298383 (1967-01-01), Cooper
patent: 3520448 (1970-07-01), Russell
patent: 3642171 (1972-02-01), Ernst
patent: 3900043 (1975-08-01), Bowen et al.
patent: 4007755 (1977-02-01), Lerner et al.
Athanasiades Neocles
McLoughlin John
Rotblum Yehuda
Malone James P.
McLoughlin John
Silverberg Fred A.
Weidenfeld Gil
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