Beverage brewer with brewing temperature interlock
US4917005A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1989 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Jun 9, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/56
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.