Tamperproof sealing arrangement for gas cylinders

Details Tamperproof sealing arrangement for gas cylinders Tamperproof sealing arrangement for gas cylinders

1992-05-18

1993-03-09

Moy, Joseph Man-Fu

Receptacles

Closures

With separately applied sealing means for indicating...

220724, 206807, B65D 5116

Patent

active

051919923

ABSTRACT:
A tamperproof seal arrangement for the pin index outlet valve of a gas cylinder, comprising a body capable of being positioned closely and securely around the pin index valve and having a number of faces matching those of the valve, one face having at least one inwardly directed projection engaging in and matching either the outlet of the valve and/or the pin index hole or holes of the valve, and another face having non-removably associated with it a unique identification marking, that face being joined to adjacent faces by rupturable means, whereby removal of that face with the identification marking will destroy the continuity of the body, whereafter the rest of the body can be removed from the pin index valve to allow use of the pin index valve while it is apparent that the seal arrangement has been destroyed or otherwise visibly damaged.

REFERENCES:
patent: 4103806 (1978-08-01), White
patent: 4318495 (1982-03-01), Wood
patent: 4736765 (1988-04-01), Campbell
patent: 4827643 (1989-05-01), Hearst et al.
patent: 4967923 (1990-11-01), Wren

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