Liquid purification or separation – Sectional chamber press type – Plates or frames
Reexamination Certificate
2008-01-18
2010-06-15
Griffin, Walter D (Department: 1797)
Liquid purification or separation
Sectional chamber press type
Plates or frames
Reexamination Certificate
active
07736502
ABSTRACT:
A temperature transfer filter plate assembly for a filter press includes a temperature transfer filter plate in a filter plate assembly having a plate chamber for receiving heating or cooling fluid. A plurality of apertures extend through the filter plate to enable the flow of liquid therethrough. A filter frame includes a web or divider wall that receives temperature transfer filter plates on opposing sides thereof. The apertures of each temperature transfer filter plate open into respective collecting chambers defined by the inner wall of the temperature transfer filter plate and the divider wall. A flow path arrangement allows removal of the liquid from the collecting chambers in the temperature transfer filter plate assembly. The temperature transfer filter plates generally have inner and outer walls with a wavy or undulating configuration to form the plate chamber therebetween.
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International Search Report and Written Opinion of the International Searching Authority, mailed May 22, 2008 (6 sheets).
Anderson Denise R
Griffin Walter D
Siemens Water Technologies Corp.
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