Coupling member of a pipe coupling

Details Coupling member of a pipe coupling Coupling member of a pipe coupling

2006-07-04

2006-07-04

Lee, Kevin (Department: 3753)

Valves and valve actuation

With correlated flow path

Valve operated by joining flow path sections

C137S614030, C137S614040, C137S614020

Reexamination Certificate

active

07070164

ABSTRACT:
A coupling member comprises a spherical rotatable valve member installed in a fluid passage thereof, in which the fluid passage is maintained open when a through hole of the valve member is aligned with the fluid passage, while the fluid passage is maintained closed when the through hole of the valve member not aligned with the fluid passage. An annular sealing convex portion is arranged on the outer surface of the valve member, which has larger radii relative to a pivotal axis A than the outer surface, so that the sealing convex portion is fully engaged with an end-opening peripheral edge of the fluid passage only when the valve member is placed in the closing rotational position.

REFERENCES:
patent: 3279497 (1966-10-01), Norton et al.
patent: 4181149 (1980-01-01), Cox
patent: 4473211 (1984-09-01), Fremy
patent: 6598620 (2003-07-01), Fremy
patent: 2005/0087239 (2005-04-01), Kohda
patent: 2005/0087240 (2005-04-01), Kohda
patent: S58-160692 (1983-09-01), None
patent: 2004-211739 (2004-07-01), None

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