Quick-connect coupling for articulating hose lines
US5918913A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1997 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Oct 30, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T17/043
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A quick-connect coupling for articulating hose lines includes a coupling body having a bore therein which receives a stem attached to a hose to be coupled to the body. A spline is positioned within the bore which receives a spline on the stem so that the stem does not rotate with respect to the bore and coupling body. A collet is provided which has inwardly and outwardly projecting detents that simultaneously engage both a shoulder within the bore and a groove in the stem to prevent axial movement of the stem with respect to the bore. While the stem is thus retained within the bore, an O-ring seals with the surface of the stem. In order to disconnect the stem from the bore, a collet is pressed inwardly to disengage the detents and then the stem is pulled axially away from the coupling member. By providing a quick-connect coupling in which a stem does not rotate with respect to a coupling member, the collet which is used to lock or latch the stem and coupling member axially to one another is not worn and stressed by relative rotation between the stem and coupling member so as to threaten the integrity of the coupling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.