Magnetic fastener

Details Magnetic fastener Magnetic fastener

1991-11-13

1992-10-06

Sakran, Victor N.

Buckles, buttons, clasps, etc.

Having magnetic fastener

2922515, A44B 2100, H01F 700

Patent

active

051520354

ABSTRACT:
A magnetic fastener utilizes the attraction force of a permanent magnet which comprises an attraction member comprising a permanent magnet having a through-hole extending between the magnetic poles and a ferromagnetic member attached on one of the magnetic poles of the permanent magnet, and a attracted member to be attracted to the ferromagnetic member via the through-hole of the permenant magnet. The angle formed by the magnetic pole surface to which the attracted member is attracted and the peripheral side face extending between the magnetic pole surfaces of the permanent magnetic is 95.degree. or larger.

REFERENCES:
patent: 3324521 (1967-06-01), Humiston
patent: 4265002 (1981-05-01), Hosken
patent: 4941235 (1990-07-01), Aoki
patent: 4991270 (1991-02-01), Aoki

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