Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1995-05-05
1996-07-30
Chambers, A. Michael
Fluid handling
Systems
Flow path with serial valves and/or closures
13761403, 2511492, 251281, F16L 3728, F16L 3708
Patent
active
055402593
ABSTRACT:
An automatically releasable shut-off coupling, for use in high pressure fluid applications, has matable and separable stationary and break-away modules forming a housing having a substantially straight throughpassage. An intermediate carrier member is slidably retained within the stationary module for movement from a retracted position to an extended position, upon application of a threshold value force by the break-away module. A locking element is retained in a first recess in the intermediate carrier member for movement between a locked position, corresponding to the retracted position of the intermediate carrier member, at which locked position the locking element partially enters a cooperating second recess in the break-away module, thereby to preclude movement of the break-away module relative to the intermediate carrier member, and an unlocked position, corresponding to the extended position of the carrier member, at which unlocked position the locking element is in register with a cooperating third recess in the housing of the stationary module. First and second ramp portions disposed on the second recess and the locking element, respectively, contact each other when the intermediate carrier member is in its extended position, such that the locking element is forcibly ejected radially outwardly from the second recess, thereby permitting movement of the break-away module relative to the intermediate carrier member. Fluid flow precluding valves block the throughpassage when the stationary module and the break-away module are separated one from the other.
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Chambers A. Michael
Hofbauer Patrick J.
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