Water heater gas valve
US10428972B2 · kind B2 · utility
0Cited by
52References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2017 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Nov 10, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87917
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gas valve assembly configured to operate without a pilot assembly is disclosed. In an illustrative embodiment, a servo valve actuates a diaphragm valve to selectively allow for fluid coupling of a gas inlet and gas outlet. The diaphragm valve may be a normally closed valve that opens in response to a pneumatic force resulting from the opening of the servo valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.