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:
Dec. 01, 1987
Filed:
Apr. 16, 1987
Walter J Kreiseder, Barrington, IL (US);
Courtesy Mold & Tool Corporation, Wheeling, IL (US);
Abstract
A tamper evident closure for a wide mouth container having a closed endcap with an overcap to coaxially rotate thereabout. The overcap is provided with an integrally formed vertically depending knife blade which is constructed and arranged to engage a weakened portion of a raised annular rib in the endcap. The endcap is further provided with a raised hollow lug which projects vertically through a corresponding aperture in the overcap. The aperture is provided with a cutting edge. As the overcap is rotated, the cutting edge of the aperture severs the raised lug, thus providing an early indication of tampering. As the overcap is rotated further and completes a rotation about said container, the knife blade completely severs the weakened portion of the raised annular rib, thus completely detaching the closure from the container. An annular bead in said overcap and a corresponding groove in said endcap may be used to reattach the severed overcap to the body of the container for reuse of the contents therein.