Coupling with lock indicator
US4776614A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1987 |
| Grant date | Oct 11, 1988 |
| Priority date | — |
| Expiry date | Oct 30, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L37/23
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A coupling fitting utilizing radially moving detents operated by an axially displaceable locking sleeve employs a safety lock lever pivotally mounted upon the locking sleeve engagable with a reference surface on the fitting when the locking sleeve is in the locked condition to lock the sleeve and give both a visual and physically discernible indication of the condition of the locking sleeve. The safety lever includes a handle which conforms to the configuration of the locking sleeve when the sleeve is in the release position, and the lever handle extends from the configuration of the locking sleeve in the sleeve lock position. Preferably, two locking safety levers are mounted upon the locking sleeve at diametrically opposed locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.