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:
Jul. 18, 1989
Filed:
Nov. 13, 1987
Edward F Csaszar, Mountainside, NJ (US);
General Kap Corporation, Bound Brook, NJ (US);
Abstract
Tamper-evident plastic closures are disclosed for use in connection with containers in which the closures include an internally threaded upper portion and a depending lower skirt portion with a number of frangible bridges connecting same. The depending lower skirt includes an inwardly projecting stop bead which can project upwardly from the inner surface of the skirt towards the lower surface of an annular collar on the container when the closure is completely threaded onto the container and to engage that lower surface when the closure is unscrewed from the container. The inwardly projecting stop bead is elongated and has a thickness along its entire length which is substantially thinner than the distance between the container finish surface below the annular collar and the inner surface of the skirt, and the inner surface of the skirt also includes a number of projections which urge the inwardly projecting stop bead towards the container finish surface to prevent removal of the closure without fracturing the bridges.