SLEEVE WITH WIDENING TAPER AT REARWARD END OF BORE
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United States of America Patent
Stats
-
N/A
Issued Date -
Aug 25, 2011
app pub date -
Apr 9, 2009
filing date -
May 15, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A block and sleeve assembly and a sleeve per se are disclosed. The sleeve has a central bore with a rearwardly opening taper. The holder block has a side-to-side opening with a bridge. An angle of the rearwardly opening taper and/or the distance from the beginning of the taper of the central bore of the sleeve to the surface of the side-to-side opening are sized to allow rearward removal of a shank of a sheared cutting pick from the sleeve. Optionally, an outer circumferential surface of at least a portion of the sleeve shank is forwardly tapered and the opening in the holder block is complementarily tapered to receive the sleeve shank. A rearward biasing retainer clip can also optionally be included.
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