Itw Limited

Daniel Graves

Chris Benning

The application describes breakable seal for a container, bag, pouch or reusable envelope which is closed by one part () locating over a second part (), the second part () having an opening () for receiving the head () of the breakable seal () which locks into the opening in such a manner that it cannot be removed without breaking, the seal () in its inserted position locking the first part () in place over the second part () in a tamper evident fashion. The seal () has an extended neck portion () between the line of weakness () and the main body part () of the seal. Typically said one part () is the fastener tab of the zipped opening of a reusable envelope and the second part () is the enclosure or chamber of a lock unit mounted on the envelope, adjacent one end of the zipped opening.

Seals

A seal has a head and a strap, the head having a chamber with an aperture through which the end of the strap can be fed. An arrangement is provided within the chamber to engage the strap so that it cannot be pulled out in the opposite direction to which is inserted. This arrangement includes resilient clip having arms which can flex and overlapping apertured members at the ends of the arms which are configured to provide a variable gap as the strap is pulled through. This clip is mounted in an insert which in turn is fitted in the chamber of the seal.

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Kent, United Kingdom

Daniel Graves