Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1994-05-03
1995-01-10
Chambers, A. Michael
Fluid handling
Systems
Flow path with serial valves and/or closures
13761401, 251367, 251368, 277206R, F16L 3728
Patent
active
053797981
ABSTRACT:
A hydraulic coupling comprising a first part having at least one check valve, a second part having at least one check valve, and a seal plate designed to be placed between the first and second parts. The first part, second part and seal plate are oriented in relation to one another. At least one connecting member disposed in the seal plate to establish communication between the interdependent check valves. In the extension of each check valve there is disposed a cylindrical surface, the center axis of which coincides with that of the check valves, and said connecting member is at each end formed with partial, open spherical cups for external sealing interaction with the cylindrical surfaces, the internal spherical surfaces being subjected to the same pressure as that in the medium which passes through the valves and the connecting member for the purpose of actuating the radial forces in the spherical cup. On the outside of the hydraulic coupling a tool can be used to carry out the coupling operation. Alternatively, a permanent coupling clamp can be used which holds the parts together for as long as is required.
REFERENCES:
patent: 3586048 (1971-06-01), Arnold
patent: 4453566 (1984-06-01), Henderson, Jr. et al.
patent: 4817668 (1989-04-01), Smith, III
patent: 4832080 (1989-05-01), Smith, III
patent: 5099882 (1992-03-01), Smith, III
Berg Torbjorn
Stromberg Hakon
Syljeset Jan E.
Chambers A. Michael
Kvaerner Energy A.S.
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