Multiport conversion system for butterfly valve
US5911243A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 10, 1997 |
| Grant date | Jun 15, 1999 |
| Priority date | — |
| Expiry date | Oct 10, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86863
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A serviceable multiport conversion system for a conventional butterfly valve includes two fittings. A first "T" fitting contains two passageways which join at an internal common bore adjacent a separating wall, the wall defining a secondary seat of the multiport valve. Circumscribing the common bore is an annular flange. A second fitting may be a similar "T" fitting or an "L" fitting. The "L" fitting contains a single passageway which terminates at an internal bore circumscribed an annular flange. In use, the butterfly valve is removably positioned in sealing engagement between two fittings, with the flanges releasably attached and the inner diameters of the flanges co-extensive with the butterfly valve bore. When a butterfly valve is positioned between an "L" fitting and a "T" fitting and the valve is in its closed position, there is no fluid communication between the passageway of the "L" fitting and the passageways of the "T" fitting. When the valve is in its open position, fluid communication exists between the passageway of the "L" fitting and one of the "T" fitting's passageways. When a butterfly valve is positioned between two "T" fittings and the valve is in a closed positi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.