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:
Sep. 29, 1987
Filed:
Mar. 26, 1987
Walter J Kreiseder, Barrington, IL (US);
Courtesy Mold & Tool Corporation, Wheeling, IL (US);
Abstract
A tamper evident closure for a container having a closed endcap with an overcap to coaxially rotate thereabout. The overcap is provided with an integrally formed knife blade which is constructed and arranged to engage a weakened annular band in the container wall near the endcap. The knife blade is located within a well which is an integral part of the overcap. As the overcap is rotated, the knife blade engages and severs the annular band, and separates the closure including the endcap and the rotatable cap from the body of the container. An annular channel may also be provided to support the overcap during rotation and thus maintain the alignment of the blade with the weakened annular band.