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:
Sep. 09, 2003
Filed:
Oct. 11, 2001
Applicant:
Inventors:
Tapani Huhdanmäki, Tampere, FI;
Leo Häkkinen, Tampere, FI;
Assignee:
Sandvik Tamrock Oy, , FI;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 1/9087 ; E21B 1/920 ;
U.S. Cl.
CPC ...
E21B 1/9087 ; E21B 1/920 ;
Abstract
Arrangement for replacing a drilling component in a rock drilling apparatus, which arrangement comprises a component magazine for storing replaceable components required in drilling and means for driving the drilling unit to a predefined position and location relative to the component magazine. The arrangement further comprises a changing unit for moving the components between the component magazine and the drilling unit.