Title:
EARTHQUAKE PREDICTIVE EQUIPMENT
Document Type and Number:
Japanese Patent JPH09243755
Kind Code:
A
Abstract:
To alarm a danger before the occurrence of an earthquake by utilizing the action of weakening the magnetic force of a magnet by the change of magnetic field on the earth before the occurrence of the earthquake, and falling a metal attached to the magnet thereby to ring a buzzer.
The action of weakening the magnetic force of a magnet 1 by the change of magnetic field on the earth before the occurrence of an earthquake is utilized. The magnetic force is weakened, a metal (iron) 2 attached to the magnet 1 is fallen by the attraction of the earth, and a switch 3 is ON to ring a buzzer. A danger is quickly alarmed to people to escape lives of many people.
Inventors:
KIMURA KISABURO
Application Number:
JP8987796A
Publication Date:
September 19, 1997
Filing Date:
March 07, 1996
Export Citation:
Assignee:
KIMURA KISABURO
International Classes:
G01R33/02; G01V3/08; G01V1/00; (IPC1-7): G01V1/00; G01R33/02; G01V3/08
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