Bidirectional gate valve
US10352480B2 · kind B2 · utility
1Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2016 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Jul 11, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L21/02367
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bidirectional gate valve including: a blade (200) installed in a valve housing (100) having first and second passage holes (110, 120) to open/close the first and second passage holes (110, 120); a shaft (300) coupled to a lower portion of the blade (200); a first driving block (400) including: a first cylinder (410) which is provided under the valve housing (100) and into which the shaft (300) is inserted; a first piston (420) installed inside the first cylinder (410) and coupled to a lower portion of the shaft(300) to vertically move the shaft (300) according to pressure change inside the first cylinder (410).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.