Line mole trap
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United States of America Patent
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Aug 23, 1994
Grant Date -
N/A
app pub date -
Oct 30, 1992
filing date -
Oct 30, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A line mole trap used as a safety device in water blasting operations is attachable to the end of a pipe and has a tubular sleeve partially disposed within a housing assembly. A line mole connected to a fluid supply hose and inserted through the sleeve is prevented from exiting the rear of the trap by a yoke placed around the supply hose. In response to the relative movement of the sleeve and housing caused by the action of a compressed spring and air cylinder, a plurality of jaws, each operatively coupled to a linkage coupling the housing and sleeve, either collapse against or retract away from the surface of the pipe being cleaned.
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