Patent · US Expired

End closure for a packaging container

US4921121A · kind A · utility

6Cited by
1References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 10, 1989
Grant dateMay 1, 1990
Priority date
Expiry dateFeb 10, 2009

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB65D2517/0088
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

An end closure for a packaging container where the closure is of the basic type having a so called one step opening arrangement, i.e. where an outer layer and an inner layer are removed in unison or simultaneously by shaping the tearing denotations in a proper pattern. In order to provide an opening procedure giving less splash the outer layer is divided into a central part having a grip for individually removing the central part from the inner layer laying under the outer layer without being connected thereto. A circumferentially extending region all around the closure, is defined by said circumferential tearing denotation and the central part and is removable together with the inner layer inside the tearing denotation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.