Expansion flexible tube joint and assembling method thereof
US6250690A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 26, 1999 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Aug 26, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L27/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An expansion flexible tube joint comprising a first cylindrical body having a pair of spherical surface ring materials each formed with partially spherical outer surface, a second cylindrical body comprising a sleeve inserted into the first cylindrical body for relative movement thereof from an axial direction thereof, the sleeve provided at its end portion with stopper means for limiting extending and contracting movement relative to the first cylindrical body, and third cylindrical bodies fitted over both outer peripheral surfaces and comprising a pair of casing tubes each having slidable spherical inner peripheral surfaces and connection portions at opposite ends thereof, wherein an end inner peripheral surface of each of third cylindrical bodies at the thereof to which second cylindrical body is inserted is chamfered, and the chamfered angle is 16.degree. or greater, and the stopper means is mounted to an outer peripheral surface of the second cylindrical body and is formed into a closed ring shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.