Retainer sleeve and wear ring for a rotatable tool

Details Retainer sleeve and wear ring for a rotatable tool Retainer sleeve and wear ring for a rotatable tool

2006-12-19

2006-12-19

Singh, Sunil (Department: 3673)

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Wear shield or replaceable wear sleeve

C299S107000

Reexamination Certificate

active

07150505

ABSTRACT:
A rotatable tool has a cylindrical shank and a compressible sleeve fitted thereon to retain the shank in the bore of a tool holder. A wear ring is positioned behind the forward cutting end of the tool and against the forward surface of the tool holder. The compressible sleeve is locked to the wear ring to prevent rotation of the wear ring with the tool. Also, the outer diameter of the wear ring is greater than the width of the forward surface of the tool holder forming an overhang, and a second tool can then be used to engage the overhang to remove the tool from the tool holder.

REFERENCES:
patent: 4310939 (1982-01-01), Iijima
patent: 4489986 (1984-12-01), Dziak
patent: 4818027 (1989-04-01), Simon
patent: 4844550 (1989-07-01), Beebe
patent: 5931542 (1999-08-01), Britzke
patent: 6508516 (2003-01-01), Kammerer
patent: 6692083 (2004-02-01), Latham
patent: 6824225 (2004-11-01), Stiffler
patent: 2006/0033379 (2006-02-01), Frear

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