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1. (WO1992010619) POINTER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/010619 International Application No.: PCT/SE1991/000852
Publication Date: 25.06.1992 International Filing Date: 11.12.1991
IPC:
E02F 9/26 (2006.01) ,G01V 3/06 (2006.01)
E FIXED CONSTRUCTIONS
02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
F
DREDGING; SOIL-SHIFTING
9
Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/-E02F7/160
26
Indicating devices
G PHYSICS
01
MEASURING; TESTING
V
GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
3
Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation
02
operating with propagation of electric current
06
using ac
Applicants:
SERVOINDIKATOR HB [SE/SE]; Svennobog 12 D-653 49 Karlstad, SE (JP)
ÅHS, Wilgot [SE/SE]; SE (UsOnly)
Inventors:
ÅHS, Wilgot; SE
Agent:
ONN, Thorsten ; AB Stockholms Patentbyrå, Zacco & Bruhn Box 23101 S-104 35 Stockholm, SE
Priority Data:
9004002-314.12.1990SE
Title (EN) POINTER
(FR) BRAS INDICATEUR
Abstract:
(EN) A pointer (4) intended for attachment to the digging arm (2) of an excavator. The pointer is characterized by an elongated arm which can be pivoted on the digging arm (2) by means of a drive means (13) whose driving movements are activated and controlled by the magnetic field generated by an underground cable (5), conduit or like conductor in a manner such as to cause the pointer (5) to point towards the cable (5), conduit or like conductor independently of the position of the digging arm (2).
(FR) Dispositif indicateur (4) conçu pour être fixé au bras d'excavation (2) d'une excavatrice. Ledit dispositif est caractérisé par un bras allongé pouvant pivoter sur le bras d'excavation (2) par l'intermédiaire d'un moyen de commande (13), dont les mouvements de commande sont provoqués par le champ magnétique produit par un câble (5), conduit ou élément conducteur similaire souterrains, de façon à orienter le bras indicateur (5) vers le câble (5), conduit ou élément conducteur similaire, indépendemment de la position du bras d'excavation (2).
Designated States: JP, US
Publication Language: English (EN)
Filing Language: Swedish (SV)