Coffee grinder

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4607200
SERIAL NO

06752572

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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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 'On plus 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 'On plus 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.

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Patent Owner(s)

Patent OwnerAddress
BUNN-O-MATIC CORPORATION5020 ASH GROVE DR SPRINGFIELD IL 62711

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Zimmerman, John D Springfield, IL 7 355

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