Rock drilling device

Details Rock drilling device Rock drilling device

2005-09-28

2009-12-08

Nash, Brian D (Department: 3721)

Tool driving or impacting

Work cleansing

C173S058000, C173S073000, C173S059000, C173S066000

Reexamination Certificate

active

07628223

ABSTRACT:
A rock drilling machine includes a sleeve having openings surrounding a portion of a lubrication channel. A groove surrounds the sleeve, and one end of a second channel is connected to the groove. The other end of the second channel is connected to a lubrication point so that lubricant from the lubrication channel is distributed from the lubrication channel, through the sleeve and groove to the second channel, and from the second channel to a lubrication point of the rock drilling machine.

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