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Class 431/68 - Sensing of hot combustion zone condition blocks restart attempt


Subclass of Class 431 - Combustion
Definition: Apparatus including control means responsive to the temperature
No. of patents: 6
Last issue date: 09/09/2008


NumberTitleIssue Date
7422010Cooking stove
A cooking stove that prevents a burner from being ignited when a touch switch shifts from a non-sensing to a sensing state. An operation portion having a touch switch is provided on a glass top plate of a cooking stove main body which accommodates burners. The touch...
09/09/2008
7370649Cooking stove
A touch switch which prohibits a child from actuating heating means, while permitting a child to deactivate heating means. A cooking stove including an electrical capacitance operation switch 10 which switches the cooking stove between an operation state in w...
05/13/2008
6247416Method of operating a furnace and device for implementing the method
The invention relates to a method of operating a furnace (1) comprising a flue pipe (11) for discharging the smoke, means (19) of introducing ambient air into the said flue pipe (11) and a smoke extractor (16) arranged in the said flue pipe (11). Accordin...
06/19/2001
4951870Overtemperature control
A blower motor failure is detected by a sensor/switch that opens at a first preset temperature level and automatically resets for the next cycle. The occurrences of such openings per thermostat cycle are counted and when they reach a predetermined number,...
08/28/1990
4235587Flame responsive control circuit
A flame responsive control circuit means has been disclosed which responds to the flame in a burner. The response is to the sudden rate of change of the resistance or impedance of a photocell upon the loss of flame. The two embodiments disclosed both util...
11/25/1980
4012189Hot gas generator
A hot gas generator for the production of hot combustion gases includes a cylindrical combustion chamber having an inner and an outer air conduit concentrically disposed thereabout. A fuel nozzle means is arranged at one longitudinal end of the cylindrica...
03/15/1977
 
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