Pipe end forming methods and pipe clamp
US10632518B2 · kind B2 · utility
3Cited by
11References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2015 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Feb 22, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L47/03
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Methods for forming a pipe end for a pipe having an inner surface lined with a liner are provided, wherein the pipe is cut at an axial location to provide a first end having an initial inner diameter defined by an inner surface of the pipe; and a length of the pipe is expanded from the first end to form an upset, bell end where an inner diameter of the upset, bell end is larger than the initial diameter, thereby defining an annulus between the inner surface of the pipe and the liner. A clamp for limiting a pipe's movement during various operations is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.