Quick connect tube couplings
US5511830A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1994 |
| Grant date | Apr 30, 1996 |
| Priority date | — |
| Expiry date | Sep 20, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L37/0927
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A quick connect tube coupling is configured for use with unstepped bores in conventional fittings, valves, manifolds and similar devices. The coupling includes a tubular tube support which has structure thereon for positively coupling with a brass sleeve which is utilized to retain the coupling in the bore. The tubular tube support further includes a stepped portion which locates a primary O-ring seal for sealing directly with a tube connected by the coupling and a secondary O-ring seal which seals with the wall of the bore. In accordance with a preferred embodiment, the tube support is molded of plastic and is polygonal in cross-section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.