Structure at resin pipe connections
US4624486A · kind A · utility
7Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1983 |
| Grant date | Nov 25, 1986 |
| Priority date | — |
| Expiry date | Apr 12, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S285/919
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A structure at a connection where at least two resin pipes are connected to each other end-to-end. The structure is characterized by annular resin body means provided on the inner periphery of the end of at least one of the resin pipes and having at least one end positioned in an annular recessed portion formed in the inner periphery of said one resin pipe. Since the above-mentioned end (which is more subject to the action of internal fluid than the other end) is positioned in the annular recessed portion, the resin body means is not eroded by the internal fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.