Pipe joint construction
US4575134A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1984 |
| Grant date | Mar 11, 1986 |
| Priority date | — |
| Expiry date | Jul 11, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L19/028
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pipe joint construction for joining two pipes by having a bead formed on the outer side near the end of one of the pipes being joined and a radially expanded portion for embracing therein a sealing member fitted around the base of said bead formed near the end of the other pipe, setting in position a union screw with the inner end surface thereof in engagement with said radially expanded portion and a nut with the inner end surface thereof in engagement with said beads, and screw tightening the union screw and the nut against each other thereby pressing the leading end of said radially expanded portion into contact with said beads, which pipe joint construction has a tapered portion formed along the inner circumferential edge of the leading end of said union screw so that the leading end of said radially expanded portion will be deformed along the outer circumferential surface of said bead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.