Padlock-type security seal having a locking insert fixed in a ho

Details Padlock-type security seal having a locking insert fixed in a ho Padlock-type security seal having a locking insert fixed in a ho

1993-02-26

1994-05-24

Moore, Richard E.

Closure fasteners

Seals

Resilient shackle ends

B65D 3334

Patent

active

053142195

ABSTRACT:
A padlock type security seal and method of making same include a U-shaped shackle, a pair of reversely bent end portions, and a transparent body having a pair of chambers for receiving the bent end portions. The chambers each have a locking groove therein for receiving the bent end portions. The seal elements are formed from two molded thermoplastic pieces, an insert and a body. The relative dimensions of the chambers, the shackle, and the locking grooves are chosen to prevent picking.
The insert has a channel in which a liquid filled vial is inserted. The vial contains a colored liquid. When the shackle is attempted to be removed from the body portion, the shackle end portions penetrate the insert and the vial causing the liquid to seep into the various chambers, the seepage being visible through the body.

REFERENCES:
patent: 3485521 (1969-12-01), Moberg
patent: 4278281 (1981-07-01), Moberg
patent: 4687240 (1987-08-01), Swift
patent: 4775175 (1988-10-01), Swift
patent: 4832387 (1989-05-01), Guiler
patent: 4893853 (1990-01-01), Guiler

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