Sealability-enhanced soft seat plate type gate valve
US11079023B2 · kind B2 · utility
0Cited by
6References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 3, 2020 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Mar 3, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K27/044
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A soft seat knife plate type valve is provided with an opening and closing plate to be inserted into a packing. First sealing structures are continuously formed on the packing, and second sealing structures are continuously formed on an edge of the opening and closing plate. The first sealing structures and the second sealing structures are complementary to each other to be removably coupled to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.