Electric coffeemaker with keep warm control responsive to the amount of coffee brewed
US5539856A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1994 |
| Grant date | Jul 23, 1996 |
| Priority date | — |
| Expiry date | Jan 13, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/54
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An electric coffeemaker includes a first electric heater for heating water for brewing the coffee. A carafe is supported on a base portion of the housing of the coffeemaker. A second electric heater is mounted in heat transfer relation with the base portion for keeping the base portion warm when a coffee-laden carafe is positioned thereon. The operation of the second electric heater is controlled to reduce the heat delivered to the base portion when a relatively lesser quantity of coffee has been brewed and to increase the amount of heat delivered to the base portion when a relatively greater quantity of coffee has been brewed. The operation of the second heater may also be varied to satisfy specific consumer taste preferences.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.