H - Electricity – 02 – P
Patent
H - Electricity
02
P
241/19, 342/19,
H02P 1/10 (2006.01) A47J 42/40 (2006.01) A47J 42/44 (2006.01)
Patent
CA 1249048
ABSTRACT OF THE DISCLOSURE A coffee grinder has a control circuit for its electric grinder motor which includes a three-position control switch having a resident "off" position, a resident "On" position, and a non-resident or momentary "Start" position. In the "Off" position power is interrupted to all circuits of the grinder. The "On" position is a resting position which is resumed after the start of each grind cycle in readiness for the start of another grind cycle. The "Start" position is momentary and in which a relay is energized so as to complete a circuit that energizes the grinder motor. In one type of coffee grinder the electrical control circuit includes a timer which can be set to determine the length of the grinding cycle. In another type of coffee grinder the length of the grinding cycle is determined by the presence of a ground coffee receiving bag or other container. In both types of grinders the normal grinding cycle can be terminated by placing control switch in its "off" position.
502365
Bunn-O-Matic Corporation
Osler Hoskin & Harcourt Llp
LandOfFree
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