Liquid purification or separation – Filter – Pipe or plate attached type
Reexamination Certificate
2006-12-05
2006-12-05
Walker, W. L. (Department: 1723)
Liquid purification or separation
Filter
Pipe or plate attached type
C210S445000, C210S448000
Reexamination Certificate
active
07143898
ABSTRACT:
An apparatus for removing debris and scale from a water line includes a first portion that is attached to a faucet or to an appliance conduit that is, in turn, attached to the faucet. A second portion is attached to an existing angle stop valve. A filter screen is disposed in between the first portion and the second portion. The first portion is able to separate apart from the second portion sufficient to allow removal and cleaning or replacement of the filter screen without requiring disconnection of the second portion from the angle stop valve or the first portion from either the faucet or the appliance conduit.
REFERENCES:
patent: 1394762 (1921-10-01), Schuermann
patent: 3332557 (1967-07-01), Pall
patent: 4589688 (1986-05-01), Johnson
patent: 6390446 (2002-05-01), Wang
Kurtz Benjamin
Rinne, Jr. Risto A.
Walker W. L.
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