Tubing connector
US4890866A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 1989 |
| Grant date | Jan 2, 1990 |
| Priority date | — |
| Expiry date | Mar 14, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/1088
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
There is disclosed a connector for attachment of flexible plastic tubing which is most compatible with filament reinforced tubing which resists elastic expansion. The connector has a central radial flange with opposite cylindrical ends which provide mandrels to receive adjacent ends of tubing. A cylindrical cage surrounds the cylindrical ends and supports chuck members. A pair of collet members are provided which slide over the tubing and the chuck members, compressing the chuck members radially inwardly without axial movement of the chuck members relative to the tubing. This deflects the chuck members into the wall of the tubing, thereby locking the tubing securely onto the mandrel. The collet member has an internal annular groove on its inside wall which receives an outer edge of the chuck members, thereby serving as a detent or interlock to resist the retraction of the collet member once it is moved into final position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.