Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Rolling or rotatable-type bit mount
Reexamination Certificate
2006-01-17
2006-01-17
Kreck, John (Department: 3673)
Mining or in situ disintegration of hard material
Cutter tooth or tooth head
Rolling or rotatable-type bit mount
C299S111000, C299S104000
Reexamination Certificate
active
06986552
ABSTRACT:
An insert for a cutting tool has a conical cutting tip, and axially behind the cutting tip is a mid-section. Behind the mid-section is a cylindrical base. Where the insert is for use on a tool of a milling machine, the base has a diameter of at least 0.800 inch so as to be considerably larger than the standard base of inserts currently in use on such machines. The enlarged base protects the tool body to which the insert is attached from washaway. The invention is useable in other industries employing rotary cutting tools. In other industries, the insert is made with an enlarged diameter base so as to protect the tool body behind the insert from erosion or washaway. Indentations in the outer circumference of the base improve the rotation of the tool and provide channels through which loosened particles of hard material are directed, thereby further reducing erosion of the tool body.
REFERENCES:
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patent: 5219209 (1993-06-01), Prizzi et al.
patent: 5324098 (1994-06-01), Massa et al.
patent: 5484191 (1996-01-01), Sollami
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patent: 6196636 (2001-03-01), Mills et al.
patent: 6554369 (2003-04-01), Sollami
patent: 899916 (1982-01-01), None
Kreck John
Marsh Robert L.
The Sollami Company
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