Automated operation check for standing valve

Details Automated operation check for standing valve Automated operation check for standing valve

2008-01-01

2008-01-01

McAllister, Steve (Department: 3749)

Combustion

Timer, programmer, retarder or condition responsive control

By condition of burner feed or feed means

C431S024000, C431S075000

Reexamination Certificate

active

07314370

ABSTRACT:
A method of verifying proper operation of an electromagnetic valve. The method includes providing a mechanism to effect opening of the valve, verifying that the valve opened as a result of employing the mechanism to effect opening of the valve and after verifying the valve opened, signaling the valve to close after a first period of time has elapsed. The method further includes, after signaling the valve to close, signaling the valve to re-open after a second period of time has elapsed and detecting the occurrence or non-occurrence of an event associated with the closing or re-opening of the valve.

REFERENCES:
patent: 4197082 (1980-04-01), Matthews
patent: 4260362 (1981-04-01), Matthews
patent: 4459099 (1984-07-01), Grunden et al.
patent: 5026270 (1991-06-01), Adams et al.
patent: 6280180 (2001-08-01), Fredin-Garcia-Jurado et al.
patent: 6419478 (2002-07-01), Kemp
patent: 2005/0130086 (2005-06-01), MacNutt et al.

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