Electronic gas cooktop control with simmer system and method thereof
US7255100B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2001 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | Jan 30, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/960785
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An electronically activated gas cooktop control system, responsive to a touch-sensitive user interface, and capable of providing a predetermined range of cooking and simmer levels of BTU output, has two complementary heating modes of operation A first heating mode of operation is provided to produce a wide selection of simmer levels of BTU output, by electronically sequencing a solenoid-operated modulating gas valve “on” and “off”, at a predetermined level of flame. A second cooking mode of operation is provided by electronically modulating the level of flame, through use of a pulse-width-modulation (PWM) output signal to produce a wide selection of cooking levels of BTU output. An igniter system capable of insuring proper ignition of gas without generating harmful electromagnetic interference is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.