Combined filter manifold and shut-off valve for a water...

Details Combined filter manifold and shut-off valve for a water... Combined filter manifold and shut-off valve for a water...

2005-01-18

2005-01-18

Cecil, Terry K. (Department: 1723)

Liquid purification or separation

With repair or assembling means

Removable treatment part with normally disabled flow controller

C210S323100, C210S418000

Reexamination Certificate

active

06843912

ABSTRACT:
A filter manifold is provided in a water purification system and includes at least one filter element for producing relatively purified water, wherein the filter manifold incorporates a shut-off valve designed to prevent filter element removal unless the shut-off valve is first switched to a closed position for turning off the incoming water supply. The shut-off valve includes an elongated actuator lever which in a normal open position engages and retains a manifold latch plate in a latched position retaining the filter elements in connected relation with flow couplers to produce purified water. Upon movement of the actuator lever to a closed position shutting off the incoming water supply, the manifold latch plate can be unlatched from the filter elements to permit filter element removal and replacement.

REFERENCES:
patent: 1861805 (1932-06-01), Lentz
patent: 3399776 (1968-09-01), Knuth
patent: 3746171 (1973-07-01), Thomsen
patent: 4476015 (1984-10-01), Schmitt et al.
patent: 5045197 (1991-09-01), Burrows
patent: 5101850 (1992-04-01), Todd
patent: 5435909 (1995-07-01), Burrows
patent: 5567311 (1996-10-01), Jang
patent: 5591332 (1997-01-01), Reid et al.
patent: 5744030 (1998-04-01), Reid et al.
patent: 5766453 (1998-06-01), Morellato et al.
patent: 5893969 (1999-04-01), Goldman
patent: 20020104794 (2002-08-01), Hoffmann

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