Title:
Concentration control system
United States Patent 2576253


Inventors:
Farrell, James K.
Keene, Paul A.
Application Number:
US65347546A
Publication Date:
11/27/1951
Filing Date:
03/11/1946
Assignee:
ALLIED CHEM & DYE CORP
Primary Class:
Other Classes:
68/17R, 137/268, 137/576, 324/443, 422/114, 422/261
International Classes:
G05D21/02
View Patent Images:
US Patent References:
2392026Consistency regulator1946-01-01
2377363Solution concentration control system1945-06-05
2370609Concentration cell and temperature compensator1945-02-27
2278769Cleaning machine1942-04-07
1995318Dishwashing apparatus1935-03-26
1991388Spraying apparatus1935-02-19
1951426Control system1934-03-20
1945351Soap dispenser1934-01-30
1928128Mixing device1933-09-26
1799051Emulsifying device1931-03-31