Collet for pipe coupling
US7455328B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Sep 27, 2004 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Mar 9, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/70
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An annular collet or gripping member radially located within a coupling assembly of the type having a hollow body, nut and an O-ring or seal for connection of a pipe thereto. The collet is axially split, the split defined by first and second generally parallel ends that are of an engageable configuration, typically by one end having a projection and the other end a correspondingly shaped cavity enabling the ends to interlock. In the normal operation of the coupling, the collet exerts a longitudinal force on the O-ring causing a seal. When it experiences an axial force that would normally relatively displace the two ends causing a leak, being engaged to each other this movement is resisted ensuring that the seal is maintained. The present invention also relates to a coupling having such a collet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.