Liquid purification or separation – Flow – fluid pressure or material level – responsive – Fluid pressure responsive by-pass
Reexamination Certificate
2005-04-26
2005-04-26
Cecil, Terry K. (Department: 1723)
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Fluid pressure responsive by-pass
C210S446000, C073S862230, C073S061730, C436S177000, C422S105000, C137S550000
Reexamination Certificate
active
06884341
ABSTRACT:
A filter device is used to capture a desired amount of material suspended in a liquid or gas. The device includes a planar filter530mounted in a chamber defined by a body member having an upper body510, a lower body520, an inlet port525, and an outlet port515. The filter includes porous portions540and545. Porous portion545is centrally arranged and is more restrictive to flow than portion540. The filter is designed such that upon portion540capturing a desired amount of material, a predetermined pressure change exists across the filter. The predetermined pressure change causes the filter to deform and conform against an inner surface of the upper body resulting in all suspension flowing through the apparatus to flow through the more restrictive second portion545.
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Cecil Terry K.
G6 Science Corp.
Trexler, Bushnell Giangiorgi, Blackstone & Marr, Ltd.
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