The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 2004
Filed:
Nov. 08, 2002
Applicant:
Inventors:
Jarmo Heinonen, Tampere, FI;
Jorma Mäki, Mutala, FI;
Assignee:
Sandvick Tamrock Oy, Tampere, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25D 1/700 ;
U.S. Cl.
CPC ...
B25D 1/700 ;
Abstract
A rock drilling machine comprising a rotating device ( ), a percussion device ( ) and a shank ( ) where a tool ( ) is to be fastened. According to the inventive idea, lubricant used for lubricating the shank is supplied in suitable conduits to pressurize the holes ( ′) of coupling bolts that join together the different parts of the drilling machine and delivered further in suitable conduits to serve as lubricant on the bearing surfaces between the rock drill and the feed equipment ( ).