Fluid pressure isolator apparatus
US5269347A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1992 |
| Grant date | Dec 14, 1993 |
| Priority date | — |
| Expiry date | Dec 22, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87909
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An isolator flow control apparatus (10) especially to selectively control communication of a contained fluid to an overpressure protection system. The isolator apparatus (10) includes a flow housing (12) having a single inlet opening (20) placed in fluid communication by an internal manifold means with a plurality of outlet openings (22, 24). A floating rotatable ball closure member (28, 30) is operably disposed in each of the outlet openings (22, 24) for effecting a metal-to-metal seal with a fixed downstream seat (16d, 18d). The ball closure members (28, 30) are interlocked by a shaft (34) in a passage (14b) extending between enlarged diameter portions (22a, 24A) receiving the ball closure members (28, 30). The ball closure members (28, 30) are actuated by an operator means (40) for automatically closing or isolating a selected outlet opening (22 or 24) while opening another outlet opening (22 or 24) to ensure continuous fluid flow or fluid communication through the isolator apparatus (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.