Tube coupling
US6623047B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1998 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Jun 15, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S285/917
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Couplings and coupling components which prevent relative rotation between tubular members when break away torque forces are applied to the tubular members. In one embodiment, the invention is a locking ring for preventing relative axial rotation between two generally tubular members. The ring is shaped to receive a sealing gasket and has two side faces wherein each side face is shaped to frictionally engage one of the tubular members to thereby prevent relative axial rotation between the tubular members. The invention is also directed to a coupling including a locking ring and a method of making a coupling having a locking ring to prevent relative rotation between the tubular members. In another preferred embodiment, the invention is a coupling comprising two generally tubular members each having a sealing end face, a raised, annular sealing bead, an inner bore, and a frictional surface located radially outward of the sealing bead. The tubular members are generally coaxially arranged such that the sealing faces face each other. The coupling further comprises a sealing gasket captured between the sealing beads for sealing the coupling, wherein the frictional surfaces engage the seal…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.