Device for coupling a flared metal pipe
US5823579A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 1997 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | May 21, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L19/0231
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pipe coupling device for holding a metal pipe having a selected diameter within a range of a nominal diameter plus or minus a specified tolerance is also useful for easily determining if any pipe is within specifications. A split metal ring having a diameter equal to the nominal diameter for the metal pipe and a transverse split having a width equal to the specified tolerance is placed around the pipe. A nut having a tapered cylindrical bore having diameter such that the diameter plus twice the thickness of the split metal ring equals the nominal diameter of the metal pipe plus the specified tolerance is fitted over the split metal ring. If the pipe is undersized it will slip through the split metal ring. If the pipe is oversized the nut will not fit completely over the metal ring surrounding the pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.