Title:
SPRING HINGE DEVICE UTILIZING ELECTROMAGNETIC FORCE
Document Type and Number:
Japanese Patent JPS5219853
Kind Code:
A
Abstract:
PURPOSE: To eliminate the spring resistance produced when a swing door is opened, by the action of electromagnetic force.
Inventors:
IWAI SHIYOUZOU
Application Number:
JP9603475A
Publication Date:
February 15, 1977
Filing Date:
August 07, 1975
Export Citation:
Assignee:
IWAI SHIYOUZOU
International Classes:
E05F1/12; E05D7/086; (IPC1-7): E05D7/086
Domestic Patent References:
| JPS3715252Y1 |