Pipe joint
US5102170A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 28, 1990 |
| Grant date | Apr 7, 1992 |
| Priority date | — |
| Expiry date | Nov 28, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S285/906
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pipe joint comprises a cylindrical main body 1 with both ends open, at least one of which is to be a pipe insertion port 10, a slender slidable cylinder 2 coaxially installed in the main body 1 so as to slide therein freely to and fro in a certain range, its free end facing the pipe insertion port 10, and a holding cylinder 3 inserted between the main body 1 and the slidable cylinder 2 in a manner to move freely back and forth. The main body 1 has a taper 11 diminishing toward the pipe insertion port 10 on its inner circumference near the port 10. The holding cylinder 3 has a slit 30 open to the pipe insertion port 10 and its outside diameter is slightly larger than the inside diameter of the pipe insertion port 10. In a state where a pipe is forcibly fitted on the slidable cylinder 2 externally, the holding cylinder 3 moves toward the pipe insertion port 10 along with the pipe being pulled back. And the main body 1 has a penetration opening 12 to receive a stick in its circumferential wall, and the holding cylinder 3 has a stopping part 31 to engage with the stick when it is inserted in the opening 12 in a state where the holding cylinder 3 and the taper 11 are not abutting agai…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.