Method for making an improved magnetic encoding device
Abstract
A magnetic encoding device and method for making the same are provided for use as magnetic storage mediums in identification control applications which 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.
- Inventors:
-
- Oak Ridge, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 863759
- Patent Number(s):
- 4242789
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G06 - COMPUTING G06K - RECOGNITION OF DATA
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; improved; magnetic; encoding; device; provided; storage; mediums; identification; control; applications; output; signals; reader; shorter; duration; substantially; magnitude; prior; elements; produced; uniformly; bending; wire; strip; stock; material; longitudinally; common; radius; exceed; elastic; limit; subsequently; mounting; restrained; unbent; position; substrate; nonmagnetic; spot; weld; attached; form; binary; coded; array; according; desired; code; enclosed; plastic; laminate; structure; devices; security; badges; key; cards; output signals; output signal; magnetic material; storage medium; binary coded; shorter duration; magnetic encoding; storage mediums; improved magnetic; encoding device; /29/235/360/365/
Citation Formats
Fox, Richard J. Method for making an improved magnetic encoding device. United States: N. p., 1981.
Web.
Fox, Richard J. Method for making an improved magnetic encoding device. United States.
Fox, Richard J. Thu .
"Method for making an improved magnetic encoding device". United States. https://www.osti.gov/servlets/purl/863759.
@article{osti_863759,
title = {Method for making an improved magnetic encoding device},
author = {Fox, Richard J},
abstractNote = {A magnetic encoding device and method for making the same are provided for use as magnetic storage mediums in identification control applications which 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1981},
month = {Thu Jan 01 00:00:00 EST 1981}
}