Combustion – Timer – programmer – retarder or condition responsive control – With test circuit checking or analyzing flame sensing...
Patent
1984-06-11
1985-06-04
Scott, Samuel
Combustion
Timer, programmer, retarder or condition responsive control
With test circuit checking or analyzing flame sensing...
431 24, 431 66, 431 88, 361 42, F23N 524
Patent
active
045211809
ABSTRACT:
A laboratory gas burner and control apparatus including a burner assembly made from electrically conductive material and adapted for positioning on a counter. Defined by the burner is an inlet for connection to a gas source and an outlet for feeding gas to a flame. An electrically operated valve controls the flow of gas to the burner outlet and an igniter is energizable by a power supply to ignite gas emanating from the burner outlet. Associated with the igniter is an activation circuit that produces either ignition periods during which the igniter is energized by the supply or non-ignition periods during which the igniter is deenergized. Initiation of each ignition period requires manipulation of a manual activation mechanism. Once ignited, the presence of flame at the burner outlet is detected by a flame sensing mechanism. A valve control circuit maintains the supply valve open only during either ignition periods or periods during which flame is detected by the sensing mechanism.
REFERENCES:
patent: Re27594 (1973-03-01), Power
patent: 2431158 (1947-11-01), Yates
patent: 3270799 (1966-09-01), Pinckaers
patent: 3426342 (1969-02-01), De Langis
patent: 3714517 (1973-01-01), Stracek
patent: 3847533 (1974-11-01), Riordan
patent: 4380428 (1983-04-01), Rozzi
"Electronics for the Power Engineer", by F. A. Annet, from Power vol. 94, Issue 9, Sep. 1950, p. 120.
Riordan William J.
Walter Carl W.
Flanigan Allen J.
Jarcho Harold G.
Kidde, Inc.
Scott Samuel
Toupal John E.
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