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Title: Improved magnetic encoding device and method for making the same. [Patent application]

Abstract

A magnetic encoding device and method for making the same are provided for use as magnetic storage media in identification control applications that give output signals from a reader that are of shorter duration and substantially greater magnitude than those of the prior art. Magnetic encoding elements are produced by uniformly bending wire or strip stock of a magnetic material longitudinally about a common radius to exceed the elastic limit of the material and subsequently mounting the material so that it is restrained in an unbent position on a substrate of nonmagnetic material. The elements are spot weld attached to a substrate to form a binary coded array of elements according to a desired binary code. The coded substrate may be enclosed in a plastic laminate structure. Such devices may be used for security badges, key cards, and the like and may have many other applications. 7 figures.

Inventors:
OSTI Identifier:
5666367
Assignee:
TIC; ERA-05-019267; EDB-80-050842
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; IDENTIFICATION SYSTEMS; FABRICATION; BENDING; COMPOSITE MATERIALS; FERROMAGNETIC MATERIALS; PLASTICS; SECRECY PROTECTION; SECURITY; WIRES; MAGNETIC MATERIALS; MATERIALS; PETROCHEMICALS; PETROLEUM PRODUCTS; 440300* - Miscellaneous Instruments- (-1989); 055002 - Nuclear Fuels- Safeguards, Inspection, & Accountability- Nontechnical Aspects

Citation Formats

Fox, R J. Improved magnetic encoding device and method for making the same. [Patent application]. United States: N. p., Web.
Fox, R J. Improved magnetic encoding device and method for making the same. [Patent application]. United States.
Fox, R J. . "Improved magnetic encoding device and method for making the same. [Patent application]". United States.
@article{osti_5666367,
title = {Improved magnetic encoding device and method for making the same. [Patent application]},
author = {Fox, R J},
abstractNote = {A magnetic encoding device and method for making the same are provided for use as magnetic storage media in identification control applications that give output signals from a reader that are of shorter duration and substantially greater magnitude than those of the prior art. Magnetic encoding elements are produced by uniformly bending wire or strip stock of a magnetic material longitudinally about a common radius to exceed the elastic limit of the material and subsequently mounting the material so that it is restrained in an unbent position on a substrate of nonmagnetic material. The elements are spot weld attached to a substrate to form a binary coded array of elements according to a desired binary code. The coded substrate may be enclosed in a plastic laminate structure. Such devices may be used for security badges, key cards, and the like and may have many other applications. 7 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {},
month = {}
}