H - Electricity – 05 – B
Patent
H - Electricity
05
B
H05B 1/02 (2006.01) A47J 37/08 (2006.01)
Patent
CA 2211431
In a toaster, a system is constructed to vary the duration of the toasting cycle. An RC network provides an oscillating signal to a counter, which upon the required number of oscillations being counted, triggers a transistor switch. The switch energizes the main solenoid switch which in turn deactivates the heating elements of the toaster. The RC network of the system comprises a variable resistor which may be manually operated, a heat sensitive resistor, and a light sensitive resistor.
L'invention porte sur un grille-pain doté d'un système faisant varier la durée du cycle de brunissement. Un circuit RC envoie un signal oscillant à un compteur qui, une fois le bon nombre d'oscillations comptées, déclenche un commutateur à transistor. Le commutateur actionne le commutateur solénoïde principal qui désactive les éléments chauffants du grille-pain. Le circuit RC du système comporte une résistance variable qui peut être activée manuellement, une résistance thermosensible et une résistance photosensible.
Black & Decker Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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