Dual chamber orifice fitting body
US7063107B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 19, 2004 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Aug 12, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K43/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A dual chamber orifice fitting, including a body with a lower chamber in fluid communication with a pipeline and a top with an upper chamber in fluid communication with the lower chamber. A valve assembly closes to hydraulically isolate the upper chamber from the lower chamber and opens to allow an orifice plate carrier to move between the chambers. When the orifice plate carrier is in the lower chamber is can be aligned with the flowbore of the pipeline. The orifice plate carrier can be removed from the fitting through the upper chamber. In the preferred embodiments, at least one of either the upper or lower chambers has a non-rectangular cross-section. The body and top may also have a curved outer surface to accommodate the non-rectangular cross-section of the interior chambers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.