Automatic, fluid tight coupling
US4452277A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 4, 1981 |
| Grant date | Jun 5, 1984 |
| Priority date | — |
| Expiry date | Feb 4, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L37/58
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid coupling includes inlet and outlet segments, each having a fluid carrying aperture with a major diameter fluid port at one end and a minor diameter coupling port at the other end of the segment longitudinal axis, the fluid ports being adapted for fluid communication with an associated fluid source and the coupling ports being adapted to receive each other in registration with engagement of the coupling ports by end to end abutment of the segments, the fluid apertures of the abutting segments, in tandem, forming a Venturi with the throat defined by the abutting coupling ports at the coupling interface, the coupling port minor diameter value being selected relative to the fluid port major diameter to provide a fluid pressure value at the coupling interface which is not greater than the outside ambient pressure, thereby preventing fluid escape to the ambient environment across the coupling interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.