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:
Oct. 22, 1996
Filed:
Feb. 08, 1994
Albert J James, Chicago, IL (US);
Continental White Cap, Inc., Northbrook, IL (US);
Abstract
A button enhancement coating system wherein mechanically actuated buttons and vacuum actuated buttons of closures may be provided with a coating system which changes color after the closure has been applied to a container and then removed therefrom with the change in color indicating tampering. The coating system includes a first coating layer applied directly to the upper surface of the button and a second coating layer of a different color applied in overlying and bonded relation to the first coating layer. The second coating layer is preferably transparent and the two colors are selected so that they produce a third color while the coating layers are bonded together. When the two coating layers become separated during the removal of the closure from a container, the button assumes the color of the second coating layer. The first coating layer may have an embossed upper surface including ribs and grooves with the second coating layer flowed thereinto. When the second coating layer is caused to shrink, mating can no longer be effected.