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:
Mar. 16, 2004
Filed:
Nov. 19, 2001
Rodney Malcolm Druitt, Rutland, GB;
Charles Martin Tansey, Penshurst, AU;
Closures and Packaging Services Limited, Guernsey, GB;
Abstract
A container closer particularly for use on screw top containers such as carbonated beverage containers, the container closure having a generally cylindrical continuous tamper evident band joined by a plurality of frangible bridges to the free edge of a skirt of the closure. The band has a segmented internal rib which engages an external retaining flange of the container when the closure is applied to the container so that on removal of the closure the tamper evident band remains on the container or is visually clearly damaged by removal of the closure from the container. The band is provided with longitudinal reinforcement by projections or other areas of thickening to provide the band with longitudinal stiffness while still permitting it to expand over the retaining flange on the container. The rib has an first annular side, the first annular side having a compound surface comprising a radially outer frusto-conical portion which assists in the molding of the rib and a radially inner substantially planar portion which increases the difficulty of removing the closure intact from the container without rupturing the bridges joining the tamper evident band from the remainder of the closure.