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:
Aug. 14, 2007
Filed:
Apr. 10, 2006
Josef Mocivnik, Fohnsdorf, AT;
Renè Egger-mocivnik, Judenburg, AT;
Josef Mocivnik, Fohnsdorf, AT;
Renè Egger-Mocivnik, Judenburg, AT;
“Alwag” Tunnelausbau Gesellschaft m.b.H., Pasching, AT;
Abstract
In a method and device for drilling, in particular percussion drilling or rotary percussion drilling, holes in soil or rock material, wherein a borehole is formed by a percussive and/or rotational movement carried out by a drill bit () mounted on a drill rod assembly () and an envelope tube and/or a jacket tube () is introduced into the borehole, it is provided that the impact energy introduced by the drill rod assembly () is transmitted partially, particularly centrally, by the drill rod assembly () onto the drill bit () and partially via an impact shoe () cooperating with the drill rod assembly () onto the envelope and/or jacket tubes (), thus enabling the reliable introduction of the excavation or impact energy into the drill bit () as well as into the envelope and/or jacket tubes ().