Flanged connection for flow line members
US5000492A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1990 |
| Grant date | Mar 19, 1991 |
| Priority date | — |
| Expiry date | Jan 24, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49945
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A connection for connecting an end hub (22) of a valve (10) to the flange (32) of an associated conduit (26). A bolting ring (36) has a threaded end portion (64) adjacent the valve (10), and a cylindrical smooth end portion (68) remote from the valve (10) extending radially inwardly from the threaded end portion (64). A shoulder (70) between the smooth portion (68) of the ring (36) and the threaded portion (64) acts as a stop to accurately position the bolting ring (36) onto the hub (22). Upon connection of the assembled valve structure to adjacent conduits (26), tensioning of the threaded studs (42) results in torque loads exerted by the smooth surface (68) on the locking ring (36) against the smooth surface (60) on the hub (22) for transmitting loads to the hub (22) as shown particularly in FIG. 5. The method includes the positioning of the locking ring (36 ) onto the hub (22) with mating cylindrical threads (64, 46) first being engaged and then adjacent smooth portions (60, 68) being engaged in a slight interference fit for subsequent connection of the valve (10) to conduits (26) by tensioning of the connecting studs (42).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.