Liquid heating vessels
US6153859A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1998 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | Aug 10, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J27/21166
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A liquid heating vessel (6) has a heated base (8) and a thermally sensitive control mounted to the base (8). The control comprises a boiling control for interrupting the supply of energy to the vessel element (12) when liquid in the vessel boils. It is responsive to the liquid temperature in a sump (18) in the vessel base, and comprises a bimetallic actuator (100) in thermal contact with the sump (18) through a C-shaped copper conductor member (110). The vessel also comprises a simmer control operable to maintain the liquid in the vessel at a predetermined temperature after boiling. This control comprises a snap-acting bimetallic actuator through which the current to the element flows to rapidly heat the actuator after a set of contacts is closed, so as to supply energy to the element in short bursts to prevent an audible heating sound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.