Connect-under-pressure coupling
US4768551A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1987 |
| Grant date | Sep 6, 1988 |
| Priority date | — |
| Expiry date | Jul 9, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87957
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A coupling for pressurized fluid medium circuits such as hydraulic or air wherein the coupling parts may be easily manually interconnected even though the fluid systems communicating with the parts are under high pressure. The coupling parts include self-sealing valves axially displaceable between open and closed positions and the valves include faces exposed to the pressurized medium, the faces being of substantially equal area and disposed in opposite directions such that the axial forces imposed on the valves by the pressurized medium are substantially counterbalanced. Such pressurized faces including elastomeric seals and valve seat shoulders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.