Hose coupling provided with non return valve and a combined locking and obstructing body
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United States of America Patent
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Sep 18, 2012
Grant Date -
Jun 11, 2009
app pub date -
May 22, 2006
filing date -
May 23, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
Hose coupling incorporates male part and a female part being provided with elements which in corporation with a slide axially displaceable sleeve on the female part renders possible pressure relief at disconnection. These elements are constituted by an angular locking pawl one portion of which is insert able in an axial groove in the female part and has such length that always at least some part thereof is surrounded by the sleeve. The other inwardly directed part of the locking pawl has such length that it extends into the groove of the male part when locking pawl is influenced by the sleeve. The locking pawl is a combined element. To lock the male part when the coupling is connected and lock the male part in an alternative position when it's pressure relieved.
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