The present invention provides a locator/monitor capable of locating a boring tool and monitoring the progress of the tool for control purposes. The locator/monitor may be used in expedited locating methodology and straightforward calibration techniques of the present invention. A durable and cost effective...http://www.google.fr/patents/US20030076106?utm_source=gb-gplus-shareBrevet US20030076106 - Orientation sensor arrangement and method for use in a system for monitoring the orientation of an underground boring tool
Orientation sensor arrangement and method for use in a system for monitoring ...
Numéro de demande: 10/324,804 Numéro de publication: US 2003/0076106 A1 Date de dépôt: 19 déc. 2002 Brevet délivré: US6756784 ( Date de délivrance 29 juin 2004)
