Multiport gate valve assembly
US6453944B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 22, 2001 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Mar 22, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8741
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention is directed to a gate valve assembly which comprises an elongated body having a longitudinal bore extending therethrough; a plurality of gates slidably disposed in the longitudinal bore across respective flow passages which each extend laterally through the body between corresponding inlet and outlet ports; each gate being movable between an open position wherein an opening in the gate is aligned with its respective flow passage and a closed position wherein the opening is offset from its respective flow passage; and an actuator for moving the gates simultaneously between a first position, wherein at least one of the gates is in its open position, and a second position, wherein the at least one gate is in its closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.