Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Rolling or rotatable-type bit mount
Patent
1995-08-02
1997-02-25
Bagnell, David J.
Mining or in situ disintegration of hard material
Cutter tooth or tooth head
Rolling or rotatable-type bit mount
299109, E21C 3519
Patent
active
056053827
ABSTRACT:
A cutting tool retention system for retaining a cutting tool having a recess. The cutting tool retention system including a support block having a main bore and a spring seat. A pin is movably mounted to the spring seat. A spring member is positioned between the spring seat and the pin so as to urge the pin into an engaging relationship with the recess of the cutting tool inserted in the main bore of the support block such that the cutting tool cannot be removed from the main bore unless the pin is withdrawn from an engaging relationship with the recess of the cutting tool.
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"Presenting Two New Bit-Holding Systems To Hold Down Your Mining Costs" Kennametal Advertisment B91-158, published 1991.
"Kennametal Mining Products", Catalog B92-75(15)H2, published 1992.
"A Better Way to Improve Your Coal Production", Kennametal Brochure B92-58(5)E1, Published 1991.
Bagnell David J.
Kennametal Inc.
Prizzi John J.
LandOfFree
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