Closure fasteners – Seals – Encasing
Patent
1981-06-23
1983-06-21
Moore, Richard E.
Closure fasteners
Seals
Encasing
283 81, 283 93, 283 99, 283114, 40626, 40914, B65D 3334
Patent
active
043890636
ABSTRACT:
The invention teaches means for detecting unauthorized tampering or substitutions of a device, and has particular utility when applied on a "seal" device used to secure a location or thing. The seal has a transparent body wall, and a first indicia, viz., a label identification is formed on the inside surface of this wall. Second and third indicia are formed on the outside surface of the transparent wall, and each of these indicia is transparent to allow the parallax angled viewing of the first indicia through these indicia. The second indicia is in the form of a broadly uniform pattern, viz, many small spaced dots; while the third indicia is in the form of easily memorized objects, such as human faces, made on a substrate by means of halftone printing. The substrate is lapped over the outside surface of the transparent wall. A thin cocoon of a transparent material, generally of the same material as the substrate such as plastic, is formed over the seal body and specifically over the transparent wall and the second and third indicia formed thereon. This cocoon is seamless and has walls of nonuniform thickness. Both the genuineness of the seal and whether anyone has attempted to compromise the seal can thus be visually determined upon inspection.
REFERENCES:
patent: 2361670 (1944-10-01), Whitehead
patent: 3221428 (1965-12-01), Fischler et al.
patent: 3864855 (1975-02-01), Pekko et al.
patent: 4118057 (1978-10-01), Ryan
patent: 4298217 (1981-11-01), Morau et al.
Moore Richard E.
The United States of America as represented by the United States
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