Ball valve coupling
US4438779A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 16, 1981 |
| Grant date | Mar 27, 1984 |
| Priority date | — |
| Expiry date | Nov 16, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87973
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention pertains to fluid couplings of high capacity, low resistance flow characteristics utilizing ball valves. Identical fitting bodies each include a ball valve rotatable 90.degree. between open and closed positions by an exteriorly accessible handle. Locking means of one coupling half associated with the ball valve actuator through cam structure cooperates with locking means defined upon the other coupling half wherein rotation of the ball valves to the open position is prevented until the coupling halves have been fully connected. Further, the locking means prevent the coupling halves from being disconnected until both ball valves have been closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.