Overheat protection control component for liquid heating vessel
US8168924B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2008 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Apr 16, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H37/52
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention provides an overheat protection control component for a liquid heating vessel which includes a control body (1); a single-integrated dual-actuation thermally sensitive bimetallic actuator (2) is provided on the upper face of the control body (1), wherein the single-integrated dual-actuation thermally sensitive bimetallic actuator (2) is two integrated and relatively independent actuating units which are formed on a piece of bimetallic strip, and the outer kick limb (3) of either said actuating unit will produce an actuating movement downwards when an overheat state occurs; two groups of switch contacts (6) are also provided on the control body (1), wherein either group of switch contacts (6) cooperate with the outer kick limb (3) of a corresponding actuating unit, and the outer kick limb (3), when producing a downward actuating movement, will open a corresponding group of switch contacts (6) and cut off the power supply of the heater for the liquid heating vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.