Gas separation: processes – With control responsive to sensed condition – Temperature sensed
Patent
1998-06-27
1999-06-22
Smith, Duane S.
Gas separation: processes
With control responsive to sensed condition
Temperature sensed
55DIG34, 95 25, 95 26, 96401, 96417, 96424, 454229, 454257, 340577, 340628, B01D 4600
Patent
active
059144530
ABSTRACT:
A monitoring apparatus for alerting an operator to the need to change a temperature control system filter includes a mechanism for selecting and setting a primary period of filter use to assure replacement before the filter becomes clogged; a mechanism for counting out the selected primary period; a mechanism for activating a signalling device to signal the operator to replace the filter, absent replacement of the filter; a mechanism for sensing replacement of the filter; a mechanism for resetting the mechanism for counting to begin the counting out the selected primary period again upon replacement of the filter; a mechanism for counting out a secondary period measured from the end of the primary period; a mechanism for shutting down the system at the end of the secondary period absent replacement of the filter; and a mechanism for detecting a fire within the building. The apparatus preferably additionally includes a mechanism for shutting down the temperature control system upon detection of a fire.
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Buckley Tommy M.
James Terry Lynn
Smith Duane S.
Van Der Wall Robert J.
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