Chemical injection system for fire fighting

Details Chemical injection system for fire fighting Chemical injection system for fire fighting

1979-02-07

1981-01-27

Tollberg, Stanley H.

Fire extinguishers

Fluid systems

Pump supply

13710121, 169 15, 222 55, 222 63, 222133, 239 61, A62C 3516

Patent

active

042469694

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.

REFERENCES:
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: 3520448 (1970-07-01), Russell
patent: 3642171 (1972-02-01), Ernst
patent: 3900043 (1975-08-01), Bowen et al.

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