Valved pipe coupling for fluid lines
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 18, 2000
Grant Date -
N/A
app pub date -
Sep 15, 1998
filing date -
Oct 6, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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