Unhooking dirty filter alarm
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Apr 20, 1982
Grant Date -
N/A
app pub date -
Mar 26, 1981
filing date -
Mar 26, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An unhooking dirty filter alarm for a filter comprising a filter head, canister and tubular filter element. The filter head has a bypass valve therein. Linkages to the outside of the filter element rotate a pointer indicating whether or not the filter element has been bypassed. The linkages are arranged not to restore the pointer after the bypassing condition has abated to thereby latch the information that the filter was bypassed.
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