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. 12, 2013
Filed:
Jan. 19, 2012
Randy R. Runquist, Knoxville, IA (US);
Mark Van Houwelingen, Knoxville, IA (US);
James R. Rankin, Pella, IA (US);
Renemarcel Albert, Begijnendijk, BE;
Randy R. Runquist, Knoxville, IA (US);
Mark Van Houwelingen, Knoxville, IA (US);
James R. Rankin, Pella, IA (US);
ReneMarcel Albert, Begijnendijk, BE;
Vermeer Manufacturing Company, Pella, IA (US);
Abstract
A drill head for an apparatus for horizontal directional drilling. The drill head includes a device for detecting angular orientation, a holder for the device for detecting angular orientation, the device for detecting angular orientation being disposed therein, a hammer driven by a liquid and a drill bit. The holder, the hammer and the drill bit are connected head to tail along a longitudinal axis of a drill string with the holder at a proximate end of the drill head and the drill bit at a distal end of the drill head.