Valved pipe coupling for fluid lines

Details Valved pipe coupling for fluid lines Valved pipe coupling for fluid lines

1998-09-15

2000-07-18

Shaver, Kevin

Valves and valve actuation

With correlated flow path

Valve operated by joining flow path sections

2511499, F16L 2900

Patent

active

06089539&

ABSTRACT:
A pipe coupling improved in operational and functional characteristics is provided. As an outer sleeve 1 is moved backward, an inner sleeve 9 comes into engagement at its locking balls 62 with the outer sleeve 1 and retracts together with the outer sleeve 1. A slide holder 8 remains urged backward by the inner pressure until the inner pressure drops down to a specific level, thus holding the locking balls 61 in a socket 4 at their radial outward position. As the locking balls 61 interrupt the backward movement of the inner sleeve 9, the outer sleeve 1 is prevented from further moving backward. While the inner sleeve 9 is paused, it interrupts the radial movement of locking balls 63. This permits the locking balls 63 to partially project into the inner side of the socket 4 and come into engagement with an outer groove 200b provided in the outer surface of a plug 200 which is thus locked and not removed out.

REFERENCES:
patent: Re27364 (1972-05-01), German
patent: 1331025 (1920-02-01), Riggin
patent: 3423063 (1969-01-01), German
patent: 3618892 (1971-11-01), Scuito, Jr.
patent: 4627598 (1986-12-01), Fremy
patent: 5090448 (1992-02-01), Truchet
patent: 5290009 (1994-03-01), Heilmann
patent: 5494073 (1996-02-01), Saito
patent: 5540250 (1996-07-01), Mullins
patent: 5884897 (1999-03-01), Arosio
patent: 5927683 (1999-07-01), Weh et al.

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