Pipe joints or couplings – With means blocking release of holding means
Patent
1994-05-19
1995-10-31
Nicholson, Eric K.
Pipe joints or couplings
With means blocking release of holding means
285316, 285 80, F16L 3723, F16L 3500
Patent
active
054623162
ABSTRACT:
A quick action coupling is provided of male and female coupling parts in which spherical camming members are loosely retained in a multiplicity of circumferentially disposed openings extended radially through the wall portion of the female coupling member. An axially movable collar surrounding the cylindrical wall portion of the female coupling member has an internally disposed camming surface portion which is configured to cam the spherical members radially inwardly upon movement of the collar in the direction of the open end of the coupling member. The male coupling member is provided with an annular end portion interfacing with a compressible sealing ring in the female coupling portion and further has an upwardly open groove disposed in alignment with the spherical members when the end surface portion is in interfacing relationship with the sealing ring. Pushing the collar axially towards the open end of the female member applies a camming force on the spherical members which first locks the spherical members within the circumferentially disposed grooves and then forces the end portion of the male member axially so as to effect a compression of the sealing ring. A ring having detent recesses is rotatably mounted on the female coupling member for movement to a position in which detent pins on the collar interfit with the detent recesses. Locking means are disclosed to block movement to the uncoupled position.
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McGlynn Joseph P.
Paff Thomas J.
Street David G.
Thomas Dean A.
Campbell Fittings, Inc.
Nicholson Eric K.
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