Quick coupling device
US4527817A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 3, 1982 |
| Grant date | Jul 9, 1985 |
| Priority date | — |
| Expiry date | Aug 3, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L37/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A quick coupling device for a fluid-tight, especially temporary connection to a pipe nipple (1) or the like, comprising a cylindrical casing (5,14), which is mechanically connectable to the pipe nipple, and a coupling piston (16,18), which is displaceably disposed in the cylindrical casing and which is permanently connectable to a pressurized fluid conduit (4) and has a through-going opening (27) for the passage of pressurized fluid to said pipe nipple, the coupling piston being displaceable, by the action of a separate actuating fluid (via 30), into sealing (21) contact with the end surface (22) of the pipe nipple (1). A separate actuating piston (29) is displaceable by the actuating fluid and adapted to actuate (32) the coupling piston (16,18) into said sealing contact, and the coupling piston has a piston surface (25) facing away from the end surface (22) of the pipe nipple and constituting a delimiting surface in an annular chamber (24) in the cylindrical casing (5), which annular chamber (24) communicates ( 23) with said through-going opening (27), said piston surface (25), by the action of the pressurized fluid, causing a force, directed against the pipe nipple (1), on the co…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.