G - Physics – 08 – B
Patent
G - Physics
08
B
347/14, 340/124.
G08B 1/00 (2006.01) H02G 1/00 (2006.01) H02G 3/12 (2006.01)
Patent
CA 1162624
A B S T R A C T A device for locating hidden objects such as electrical boxes in buildings, which objects are to be exposed by providing a hole in a covering unit, such as a plate like wall, over the object. The device has a first annular magnetic body mounted at the object to be located on one side of the covering unit, the first body having a guide hole formed therein and a conically tapered recess formed around the guide hold, the recess having a diameter greater than the diameter of the guide hole. A second annular magnetic body is movable along the other side of the covering unit for sensing the position of the first magnetic body, the second body having a guide hole formed therein. The guide holes are positioned on the bodies so as to be alignable on opposite side of the covering unit for guiding a drill through the covering unit. The first magnetic body is releasably attached to the object whereby the first magnetic body can be removed from the object after the object is located and exposed. One of the magnetic bodies is a permanent magnet.
367290
Wester Anders
Wester Bengt
Gowling Lafleur Henderson Llp
Wester Anders
Wester Bengt
LandOfFree
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