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:
Mar. 13, 2001
Filed:
Sep. 29, 1999
Arto Vento, Tampere, FI;
Jukka Tantari, Lempaala, FI;
Kari Saarinen, Tampere, FI;
Pasi Julkunen, Pirkkala, FI;
Veikko Lintu, Tampere, FI;
Seppo Peltola, Tampere, FI;
Tapani Sormunen, Tampere, FI;
Sandvik AB, Sandviken, SE;
Abstract
A rock drilling rig includes a movable carrier with a boom attached to it and movable in various ways. The free end of the boom is provided with drilling equipment. The drilling equipment is enclosed in a casing that prevents noise generated during drilling from spreading to the surroundings. The casing is arranged to move together with a feed beam and relative to the cradle mounted on the end of the boom. A flexible noise attenuating skirt projects forwardly from a front end of the casing for forming a sealed chamber around a drilling head.