Back lit temperature knob
US12359809B2 · kind B2 · utility
0Cited by
18References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2022 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Jan 10, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H9/2007
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A backlit temperature control knob for water heater valves used with water heaters and more particularly to gas water heaters provides a way to read the temperature indication not previously known in the art. Some embodiments rely on a thermocouple or thermopile normally used to power a safety magnet with the pilot light system as a source of electrical energy to selectively illuminate a Light Emitting Diode (LED) which directs light through at least a portion of the knob to assist in reading the temperature indications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.