Installation tool for tangless helically coiled insert
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United States of America Patent
Stats
-
Oct 10, 1995
Grant Date -
N/A
app pub date -
Feb 16, 1993
filing date -
Feb 16, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An insertion tool for a helically coiled wire insert of the type used for tapped holes in parent material that is generally softer than a fastener being screwed into the tapped hole, whereby a mandrel having a threaded lead portion and a pivotal pawl inserted in a groove below the threaded portion so that the pawl engages a cut out portion formed in the insert in order that the insert may be screwed onto the tapped hole. The driving face of the pivotal pawl has a cavity formed therein to capture the lead coil of the insert and prevent its axial movement during installation.
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