Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1987-02-17
1989-01-03
Chambers, A. Michael
Fluid handling
Systems
Flow path with serial valves and/or closures
2851331, 2851371, F16L 3728
Patent
active
047949376
ABSTRACT:
A manually operating plug and socket joint for multiple hose connections, particularly measuring, control or regulating lines of fluid systems with very high (several hundred bar), reduced or alternating pressure. The plug and the socket have a housing with axially parallel bores receiving a joining bushing with a radial clearance. A spring loaded and mechanically actuable check valve with a cylindrical valve body is arranged in each joining bushing. The valve body outer edge or frontal face sealing shoulder presses against an elastomeric gasket. The joining bushing or a sealing bush located in the bushing and the gasket define a sealable flow channel. Each mechanically actuable plug piece check valve contains a shackled flying piston with a passage bore. The piston outlet nipple opens the cylindrical valve body of the associated socket piece mechanically actuable check valve. The piston inlet nipple opens the cylindrial valve body of the plug piece mechanically actuable check valve. A second flow channel seal is arranged in each mechanically actuable check valve, downstream and/or upstream relative to the gasket. Release of the second flow channel seal of each check valve is delayed following release of the gasket from the sealing shoulder upon opening the cylindrical valve body by the flying piston nipples.
REFERENCES:
patent: 4082112 (1978-04-01), Schmidt
patent: 4253488 (1981-03-01), Leverberg
patent: 4367888 (1983-01-01), Leverberg et al.
patent: 4453566 (1984-06-01), Henderson, Jr. et al.
patent: 4460156 (1984-07-01), Hazelrigg et al.
patent: 4486060 (1984-12-01), Currall
patent: 4495967 (1985-01-01), Needham et al.
Chambers A. Michael
Hydrotechnik GmbH
Koch Robert J.
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