Isolation valves
US6517048B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Aug 24, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K3/188
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Isolation valves for selectively sealing a first region from a second region. A gate valve can include a housing which defines a channel between the first and second regions. The valve includes a gate, located in the housing, and displaceable between a stowed position and a deployed position. When the gate is in the stowed position, communication is permitted between the first and second regions. When the gate is in the deployed position, the gate spans the channel and can be controlled to isolate the first and second regions. The valves can be used, for example, in connection with systems for processing large glass substrates. The valves are particularly useful for isolating long rectangular openings, such as the openings in substrate processing chambers. Isolating processing chambers or load lock chambers from one another, for example, in a linear system, is facilitated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.