Apparatus and method for cooling gas cooktop knobs
US10488053B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 25, 2016 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Oct 15, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24C15/101
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A cooktop has a top sheet; a space below the top sheet; a first passageway through the top sheet; a second passageway through the top sheet; a first gas burner that draws primary combustion air from the space below the top sheet; a first gas control knob that controls an amount of gas that flows to the first gas burner, the first gas control knob protruding through the first passageway; a second gas burner that draws primary combustion air from the space below the top sheet; and a second gas control knob that controls an amount of gas that flows to the second gas burner, the second gas control knob protruding through the second passageway. The first passageway and the second passageway have different airflow rates at a given negative air pressure in the space below the top sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.