Fuel filter equipped with a quick fastening cover for an interna

Details Fuel filter equipped with a quick fastening cover for an interna Fuel filter equipped with a quick fastening cover for an interna

1991-08-01

1993-11-09

Savage, Matthew O.

Liquid purification or separation

With repair or assembling means

210439, 210440, 210455, 210DIG17, 210309, B01D 2708

Patent

active

052599531

ABSTRACT:
A filter comprises a case for a fuel filter element and a cover that can be built according to two embodiments: one with holes for allowing the screwing of the filter onto a threaded base; and one with elbow-ducts projecting from the cover and integrally formed therewith. Both the cover and the case are of plastic material. The fastening of the cover to the case is obtained by means of a helical screw connection and a locking means, the locking means consisting of oblique teeth both in the case and in the cover acting as a ratchet gear arrangement for preventing unscrewing of the cover. A settlement chamber is formed at the bottom of the case having radial projections reinforcing the structure thereof.

REFERENCES:
patent: 2372570 (1945-03-01), Hallenius et al.
patent: 2567062 (1951-09-01), Edelen
patent: 3433380 (1969-03-01), Kawchitch
patent: 3448896 (1969-06-01), Kobayashi et al.
patent: 4617118 (1986-10-01), Smart
patent: 4743374 (1988-05-01), Stifelman
patent: 4853120 (1989-12-01), Frantz
patent: 4940260 (1990-07-01), Odriozola
patent: 4992166 (1991-02-01), Lowski et al.
patent: 5000332 (1991-03-01), Whitacre
patent: 5063968 (1991-11-01), Bartholomew

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