Metal sheathed heater with solid state control device

Details Metal sheathed heater with solid state control device Metal sheathed heater with solid state control device

2011-04-19

2011-04-19

Robinson, Daniel (Department: 3742)

Electric heating

Heating devices

Resistive element: igniter type

C219S507000

Reexamination Certificate

active

07928342

ABSTRACT:
A metal sheathed heater includes a solid state control device that allows the metal sheathed heater to be more efficiently operated. The control device supplies or terminates power to the heater according to certain conditions. Further, the control device uses predetermined time periods to control power to the heater. Thus, the heater is not kept on unnecessarily.

REFERENCES:
patent: 4692596 (1987-09-01), Payne
patent: 4788398 (1988-11-01), Hornung
patent: 5786568 (1998-07-01), McKinney
patent: 6844531 (2005-01-01), Kirby
patent: 2005/0194377 (2005-09-01), Kirby
patent: 2006/0191904 (2006-08-01), Kirby
patent: 1209628 (1986-08-01), None
patent: 1171898 (2004-07-01), None
patent: 2291896 (2006-01-01), None

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