Title:
Automatic discriminatory clogging detector for oil filters
United States Patent 2729339


Inventors:
Mccoy, Marion M.
Application Number:
US37714253A
Publication Date:
01/03/1956
Filing Date:
08/28/1953
Assignee:
PUROLATOR PRODUCTS INC
Primary Class:
Other Classes:
73/114.57, 116/202, 116/264, 116/DIG.42, 184/6.4, 210/130, 210/149, 210/439
International Classes:
B01D35/143
View Patent Images:
US Patent References:
2639783Oil filter and pressure regulation system for engines1953-05-26
2615573Oil filter1952-10-28
2533266Filter1950-12-12
2499494Clogged filter signal device1950-03-07
1780663Oil filter1930-11-04
1676268Pressure and vacuum filter1928-07-10
Foreign References:
GB450104A1936-07-10
FR801048A1936-07-25
FR806635A1936-12-21