Valves and valve actuation – With correlated flow path – Valve operated by joining flow path sections
Patent
1998-12-23
2000-10-10
Huson, Gregory L.
Valves and valve actuation
With correlated flow path
Valve operated by joining flow path sections
2511491, 285315, 285316, F16K 5100
Patent
active
061293342
ABSTRACT:
The present invention provides a pipe coupling socket having a main body containing a plurality of lock balls for locking a plug accepted in the main body. The main body has a projecting lock portion which projects from the outer circumferential surface and has a top surface in which a groove is formed. The operation sleeve has a stepped portion formed in the circumferential direction on the inner surface thereof, such as to engage with an axial end of the projecting lock portion, thus inhibiting the operation sleeve from transferring to the rear end portion side, a lock releasing recess recessed in the stepped portion such as to house an axial end of the projecting lock portion, thus allowing the operation sleeve to transfer to the rear end portion side, and protruding portions which can be fitted to the groove when the projecting lock portions are placed at a position which matches the lock releasing recess in the axial direction, and at a position which is offset from the lock releasing recess in the circumferential direction. The projecting lock portion can go over the protruding portions when the user moves the operation sleeve in the circumferential direction.
REFERENCES:
patent: 3964771 (1976-06-01), Baudouin
patent: 4703958 (1987-11-01), Fremy
patent: 4988129 (1991-01-01), Saito
patent: 5607139 (1997-03-01), Kjellberg
Huson Gregory L.
Nitto Kohki Co. Ltd.
Welsh John P.
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