Tube coupling device having valve member
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United States of America Patent
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May 29, 2018
Issued Date -
N/A
app pub date -
Oct 15, 2015
filing date -
Aug 4, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tube coupling device having a check valve contains: a coupling body and a valve assembly. The coupling body includes a tubular member and a circular connecting seat, the tubular member is hollow to flow water, and the coupling body also includes an isolation sleeve for covering on an inner wall of the tubular member, such that the isolation sleeve separates the water from the tubular member, and the isolation sleeve has a flow channel for flowing the water. The locking set is disposed between the tubular member and the isolation sleeve and includes a protruded rib extending inwardly around the tubular member and retained between the isolation sleeve and the tubular member. The locking set also includes a retaining groove formed on the isolation sleeve and retaining with the protruded rib, and the retaining groove engages with the protruded rib and covers three sides of the protruded rib.
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