Modular Drinking Water Filtration System with Internal Sealing Between Valve Spindle and Head
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United States of America Patent
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Issued Date -
Sep 24, 2009
app pub date -
Mar 21, 2008
filing date -
Mar 21, 2008
priority date (Note) -
Abandoned
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Abstract
A rotary valve spindle for flow control in the head of a filter includes a unitary dual function seal that is carried by the spindle and seals against the inner surface of the filter head during spindle rotation between flow and no-flow positions. The dual function seal greatly simplifies manufacture and assembly of the valve.
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