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:
Jul. 26, 2005
Filed:
Sep. 04, 2003
John E. Mercer, Kent, WA (US);
Peter H. Hambling, Bellevue, WA (US);
Rudolf Zeller, Seattle, WA (US);
Shiu S. NG, Kirkland, WA (US);
Guenter W. Brune, Bellevue, WA (US);
Lloyd A. Moore, Renton, WA (US);
John E. Mercer, Kent, WA (US);
Peter H. Hambling, Bellevue, WA (US);
Rudolf Zeller, Seattle, WA (US);
Shiu S. Ng, Kirkland, WA (US);
Guenter W. Brune, Bellevue, WA (US);
Lloyd A. Moore, Renton, WA (US);
Merlin Technology, Inc., Renton, WA (US);
Abstract
A portable mapping tool for use in a horizontal drilling system and associated methods use a boring tool configured for transmitting a locating signal. The mapping tool also includes at least one electromagnetic field detector which is configured for measuring the locating signal from a fixed position proximate to the surface of the ground in a drilling area. The mapping tool includes a housing and a transmitter arrangement supported by the housing for transmitting a setup locating signal for reception by the detector in the region for use in determining certain initial conditions at least prior to drilling. The associated methods include the step of configuring the mapping tool for transmitting a setup locating signal for reception by the detector in the region and using the received setup locating signal in determining certain initial conditions at least prior to drilling.