Self-tightening soft tubing fitting and method of use
US4903995A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1988 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Sep 30, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49945
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved self-tightening fitting and fitting connector for use with soft tubing includes a stem having a flange at one end over which a piece of soft tubing may be pulled, and a sleeve which is slidable over the stem and has an inwardly extending lip with a contact surface thereon. A releasable ratchet mechanism prevents movement of the sleeve away from the flange, so that tubing can be secured tightly between the contact surface of the sleeve and the flange. When tension is applied to the tubing, the lip portion catches on the tubing, urging the contact surface tighter against the flange, preventing the tubing from creeping through the clamping couple formed by the sleeve and flange. When it is desired to disconnect the tubing, the ratchet mechanism can be released. The method of use is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.