Gas valve and flow rate control method for propane gas
US11686395B2 · kind B2 · utility
0Cited by
5References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 19, 2021 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Mar 25, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K25/005
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A ring base member of a disc seat ring is fixed to a valve disc using a bolt. The valve disc is formed of a first austenitic stainless steel containing 17.0% by mass to 21.0% by mass of Cr and 8.0% by mass to 13.0% by mass of Ni. The ring base member is formed of a second austenitic stainless steel containing 17.0% by mass to 20.0% by mass of Cr and 8.0% by mass to 15.0% by mass of Ni.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.