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:
Apr. 08, 2003
Filed:
Dec. 21, 2000
Nelson Hall, Kent, WA (US);
Utilx Corporation, Kent, WA (US);
Abstract
A guidance system for a drill tool ( ) comprising a primary guidance package and a magnetic solenoid transmitter ( ). The primary guidance package contains signal generator. The signal generator produces a signal indicative of the location of the drill tool . The magnetic solenoid transmitter both transmits the primary guidance data to a signal processor and emits an electromagnetic field. Using a locator ( ), an operator can periodically determine the actual drill tool position by detecting the electromagnetic field. The actual position of the drill tool as determined by the electromagnetic field is used to correct for an integration error that is introduced into the drill tool position by the guidance technique used by the primary guidance package.