Title:
Quickly removable filter casing cover
United States Patent 2568181


Inventors:
Zimmerman, Robert M.
Kennedy, Walter V.
Application Number:
US78836047A
Publication Date:
09/18/1951
Filing Date:
11/28/1947
Assignee:
FRAM CORP
Primary Class:
Other Classes:
210/437, 210/451, 210/453, D23/209
International Classes:
B01D27/02
View Patent Images:
US Patent References:
2441344Coupling1948-05-11
2431782Liquid filter valve structure1947-12-02
2420315Booster pump shut-off casing for pump removal1947-05-13
2389814Filter1945-11-27
2354481Filter shell1944-07-25
2311320Filter1943-02-16
2145535Filter1939-01-31
2128589Rechargeable filter1938-08-30
1838636Neck and closure structure1931-12-29
1797198Filter1931-03-17
0699606N/A1902-05-06
0649843N/A1900-05-15
0588800N/A1897-08-24
0028413N/A1860-05-22
Foreign References:
FR574540A1924-07-12
FR696574A1931-01-05