Bunn-O-Matic Corporation

Charles A Nidiffer

Raymond E Van Camp

James H Anson

Daniel R Ephraim

Philip C Ephraim

A coffee grinder in which coffee beans can be selectively fed by gravity to the grinder mechanism from either of two hoppers. Separate reciprocable slides close off or open separate discharge openings communicating between the bottom of each hopper and the grinder inlet for beans. The slides are operated by separate solenoids. An electrical control circuit including a dual timer, two solenoids and the grinder motor, allow an operator to selectively grind a predetermined quantity of beans from either of the hoppers.

Dual hopper coffee grinder

A discharge chute unit is provided for attachment to a coffee grinder which has a discharge opening in the underside of a grinding chamber. The upper end of the discharge chute unit is mounted under the discharge opening and provided with de-chaffing the de-plugging means. A baffle is pivotally mounted in the upper end of the chute unit below the de-chaffer and de-plugger and normally biased in a position to deflect the flow of ground coffee and chaff toward the back side or rear wall of the chute member. The free discharge of chaff into the chute unit is prevented by a de-chaffer having reed-like de-chaffing members which yieldably obstruct the inlet opening into the chute unit without overly interfering with the discharge and flow of ground coffee from the grinding chamber into the chute unit. The pivotally mounted baffle carries on a support rod one element for depressing the reed-like members so as to provide a de-plugging opening and another element which is located in the discharge opening of the grinding chamber for knocking or breaking up ground coffee that has become lodged and caked in the opening. Manual pivoting of the baffle actuates both the element which depresses the de-chaffer reeds and the de-plugging or knockout bar.

Discharge chute unit for coffee grinders

Beverage making and dispensing machine

Coffee grinder

A bag-receiving chute combination for a coffee grinder which has a downwardly facing discharge opening from which different sized batches of ground coffee discharge into bags of correspondingly different heights. The combination comprises an elongated, channel-shaped chute body adapted to be mounted underneath the grinder discharge opening so as to extend downwardly with sufficient spacing from the grinder body to permit insertion of the mouth of a bag around the chute. In addition there is a bag mouth spreader so shaped and mounted on the chute as to prevent a user from incorrectly mounting a bag under and around the chute.

Bag-receiving chute for coffee grinder

An electric motor driven coffee grinder is turned on by manually activating an on/off/start switch when a bag is in position to receive ground coffee under a discharge chute and automatically turned off when the bag is removed. The grinder motor is controlled by both the manual on/off/start switch and by a switch which is actuated by a pivotally mounted lever responsive to the presence and absence of a bag under the discharge chute. This lever is designed to assume a switch-off position when no bag is present and is pivoted to a switch-on position when a bag is present.

Growing community of inventors

Decatur, IL, United States of America

Charles A Nidiffer