Quick connect tube couplings
US5468028A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1994 |
| Grant date | Nov 21, 1995 |
| Priority date | — |
| Expiry date | Dec 19, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L37/0927
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Quick-connect couplings having a sleeve with a tubular tube support mounted therein, an internal O-ring, an external O-ring and a collet are configured to retain a tube on the tubular tube support by engaging the tube with the collet. In one embodiment of the invention, the tubular tube support is retained in the sleeve by engagement with a first internal annual shoulder in the sleeve. The interior O-ring positioned against a second annular shoulder within the sleeve. The collet resiliently fits within the sleeve to retain the tubular tube support and internal O-ring in place prior to assembly. An external groove in the sleeve receives an external O-ring to seal with the bore. In another embodiment of the invention, the tubular tube support is staked to a first end of the sleeve by a radially extending flange. The internal O-ring is disposed between the end of the collet and the radially extending flange. An annular trough is provided between the tube support portion and the radially extending flange thereof for receiving the tube. Upon pressing the collet into the sleeve with the tube in place, the tube is locked to provide the quick-connect coupling. An external groove in the sle…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.