Fuel filter with leak avoidance plug

Details Fuel filter with leak avoidance plug Fuel filter with leak avoidance plug

2005-01-18

2005-01-18

Popovics, Robert James (Department: 1724)

Liquid purification or separation

With repair or assembling means

Removable treatment part with normally disabled flow controller

C210S136000, C210S416400, C210S445000, C210S446000, C210S450000, C210S451000, C251S149400, C251S149600

Reexamination Certificate

active

06843913

ABSTRACT:
The fuel filter housing (12) is formed of inlet segment (14) and outlet segment (16) that are telescopically mounted to each other, with a seal (44) positioned between the mounting flanges (38) and (40). Valve (60) is maintained displaced from its valve seat (58) by valve actuator (66), by the valve actuator engaging the perimeter of the filter (34). When the outlet housing segment (16) moves away from inlet housing segment (14), the filter and the valve actuator (66) also move, allowing the valve the close. The amplitude of movement of the valve (60) toward and away from its seat (58) is smaller than the sealed telescopic movement of the housing segments, so that the valve closes before the segments separate, thereby limiting the amount of fuel lost from the fuel filter assembly.

REFERENCES:
patent: 1746274 (1930-02-01), Otis, Jr.
patent: 1746336 (1930-02-01), Breer
patent: 1933409 (1933-10-01), Berman
patent: 2200795 (1940-05-01), Krieck
patent: 2692052 (1954-10-01), Bihler
patent: 5049269 (1991-09-01), Shah
patent: 5350506 (1994-09-01), Dombek et al.
patent: 5516425 (1996-05-01), Brieden et al.
patent: 5846417 (1998-12-01), Jiang et al.
patent: 6723239 (2004-04-01), Maxwell
patent: 6746603 (2004-06-01), Harvey et al.

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