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:
Nov. 02, 2010
Filed:
Jan. 27, 2005
Wolfgang Radkowitsch, Neunkirchen, AT;
Klaus Metzner, Wr. Neustadt, AT;
Friedrich Bleicher, Vienna, AT;
Wolfgang Radkowitsch, Neunkirchen, AT;
Klaus Metzner, Wr. Neustadt, AT;
Friedrich Bleicher, Vienna, AT;
Schoeller-Bleckmann Oilfield Technology GmbH & Co. KG, Ternitz, AT;
Abstract
The invention relates to a drill () and a device or a method for drilling boreholes in workpieces (), in which a periodically acting radial force () is exerted on the drill head () of the drill (). The drill head () of the drill () has a cutting edge () extending only over a part of the diameter D () and is designed to have a lateral, V-shaped chip removing groove or bead () and with a channel () with an outlet opening () in the drill head () for supplying a drill fluid (). On a drill side () of the drill head () opposite the bead () between a first and a second cylinder casing partial surface () of the drill head () a rear offset () is formed which reduces the cross section of the drill head () in relation to an enclosing cylinder casing surface () of the drill head ().