US 4,917,005 · Granted 1990-04-17
Beverage brewer with brewing temperature interlock
A beverage brewer includes a water reservoir in which water is heated to a predetermined brewing temperature by a resistance heater element within the reservoir. To initiate a brewing cycle cold water is admitted to the reservoir for a predetermined time period through an electrically operated fill valve to displace a predetermined volume of heated water from the reservoir. The heated water flows through a beverage filter containing coffee or tea to a serving beaker. A temperature interlock circuit having a temperature sensing element in the reservoir prevents actuation of the fill valve when the reservoir temperature falls below a predetermined minimum level.
Patent details
- Publication number
- US 4,917,005
- Filing date
- 1989-06-09
- Grant date
- 1990-04-17
- Assignee
- Bunn-O-Matic Corporation
- Inventor(s)
- KNEPLER; JOHN T.
- CPC class
- A47J31/057
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