Grinding apparatus for buttons on rock drill bit

Details Grinding apparatus for buttons on rock drill bit Grinding apparatus for buttons on rock drill bit

2008-07-22

2008-07-22

Morgan, Eileen P. (Department: 3723)

Abrading

Precision device or process - or with condition responsive...

Computer controlled

C451S011000, C451S048000, C451S342000, C451S246000

Reexamination Certificate

active

10542599

ABSTRACT:
The present invention relates to grinding apparatus for grinding the hard metal inserts of rock drill bits, said grinding apparatus having a grinding machine carried on an support system that provides a feed pressure for said grinding machine during grinding, said grinding machine equipped with a grinding pin driven by motor to rotate about its longitudinal axis wherein the grinding cup is rotated at variable speeds and the support system provides a variable feed pressure.

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patent: 2005/0107021 (2005-05-01), Sjolander et al.
patent: 2007/0004320 (2007-01-01), Lindgren
patent: 2313685 (2000-07-01), None

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