Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Rolling or rotatable-type bit mount
Reexamination Certificate
2011-05-31
2011-05-31
Singh, Sunil (Department: 3672)
Mining or in situ disintegration of hard material
Cutter tooth or tooth head
Rolling or rotatable-type bit mount
C299S104000, C299S102000
Reexamination Certificate
active
07950745
ABSTRACT:
An improved bit assembly for road milling, mining, and trenching equipment includes a streamlined tip assembly that is a combination of conical and cylindrical in shape and devoid of protrusions or annular indentations that might impede the flow of removed material over and around the bit assembly or provide space for removed material to become clogged or imbedded on the tip assembly. The generally cylindrical hollow shank that mounts the bit holder to the bit block includes at least one axially aligned slot along its side wall that allows the side wall to bend supply radial force to maintain the bit holder in the bit block.
REFERENCES:
patent: 3397012 (1968-08-01), Krekeler
patent: 3498677 (1970-03-01), Morrow
patent: 3865437 (1975-02-01), Crosby
patent: 4084856 (1978-04-01), Emmerich et al.
patent: 4684176 (1987-08-01), Den Besten et al.
patent: 4844550 (1989-07-01), Beebe
patent: 5067775 (1991-11-01), D'Angelo
patent: 5088797 (1992-02-01), O'Neill
patent: 5106166 (1992-04-01), O'Neill
patent: 5273343 (1993-12-01), Ojanen
patent: 5302005 (1994-04-01), O'Neill
patent: 5303984 (1994-04-01), Ojanen
patent: 5503463 (1996-04-01), Ojanen
patent: 5628549 (1997-05-01), Ritchey et al.
patent: 5725283 (1998-03-01), O'Neill
patent: D420013 (2000-02-01), Warren
patent: 6176552 (2001-01-01), Topka
patent: 771911 (1997-05-01), None
Patnaude and Videbeck
Singh Sunil
The Sollami Company
LandOfFree
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