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. 31, 2007
Filed:
Feb. 12, 2003
Frank S. Nickel, Perry, OK (US);
Martin A. Williams, Tulsa, OK (US);
Frank S. Nickel, Perry, OK (US);
Martin A. Williams, Tulsa, OK (US);
The Charles Machine Works, Inc., Perry, OK (US);
Abstract
A monitoring system for use with a horizontal directional drilling machine and adapted to determine the roll and/or pitch orientation of the downhole tool assembly by detecting signals from a sensor assembly supported by the downhole tool assembly. In a preferred embodiment, the monitoring system uses an antenna assembly to detect a signal transmitted from the sensor assembly. The antenna assembly transmits the detected signal to a processor which determines a calibration factor indicative of the actual orientation of the sensor relative to the known orientation of the downhole tool assembly. The processor then uses the calibration factor and the signal emitted from the sensor, indicative of the actual orientation of the sensor, to determine the actual orientation of the downhole tool assembly.