Liquid filter

Details Liquid filter Liquid filter

1975-09-23

1977-05-03

Granger, Theodore A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Transparent

210232, 210444, 220 67, B01D 5514

Patent

active

040213420

ABSTRACT:
A filter for liquid fuels wherein a flanged end portion of the metallic case for filter elements is embedded in or bonded to the reinforced open end of a transparent injection-molded plastic cup. The connection includes an elastic plastic liner which may constitute a barrier against any direct contact between the cup and the case or is disposed between the inner side of the end portion of the case and a raised annular portion of the open end of the cup. The liner compensates for differences between the thermal expansion coefficients of the materials of the case and cup and insures that the connection is not only leakproof but also resistant to relatively high fluid pressures in the filter. If the end portion of the case is bonded to the open end of the cup, it has an inwardly extending collar which overlies a bead of the open end; the liner then consists of hot melt and fills a gap between the inner side of the collar and the adjacent shoulder of the bead.

REFERENCES:
patent: 2693881 (1954-10-01), Chambers et al.
patent: 3178050 (1965-04-01), Doerpinghaus
patent: 3424343 (1969-01-01), Hoeffelman
patent: 3550832 (1970-12-01), Fitzgerald
patent: 3700524 (1972-10-01), Sato

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