Filter change indicator
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United States of America Patent
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-
Aug 19, 2008
Grant Date -
Jun 7, 2007
app pub date -
Nov 17, 2006
filing date -
Aug 31, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fluid system pressure indicator is adapted for use in fluid systems having a filter element. The fluid system force indicator includes a housing partitioned to be exposed to the fluid system to provide transmission of a mechanical force between these partitioned environments to indicate the fluid pressure. This exterior shape change is such that it can be identified through tactile means not requiring visual identification.
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