The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 1996
Filed:
Jun. 28, 1993
Margaret P Richardson, Carmarthen, GB;
Philip Richardson, Carmarthen, GB;
Other;
Abstract
A apparatus for providing a tamper- or damage-indicating member, such as a tamper-evident glove. The apparatus comprises first and second layers, typically inner and outer glove-shaped bodies, of substantially liquid- and air-impermeable material, at least a portion of the second layer being of translucent material and having a contrasting color relative to the first layer. The apparatus further comprises means for sealing at least the portion of the second layer to the first layer, such that the portion surrounds a zone of the surface of the first layer, forming a space between the layers which is adjacent the zone and is substantially free of air. When the second layer is sealed to the first layer, breach in either layer adjacent the zone results in a change in perceived color in the area of breach.