Patent ID: 7036671
Filing Date: 2006-05-02
Classification: B65D

Abstract:
1. A container having a damage-resistant finish ring and an opening sealable by a closure member that is removable by a hook-type opener, comprising: a) a locking ring on said finish ring, said locking ring comprising a convex outer surface having a locking ring radius and a height and extending from a first circumferential edge to a second circumferential edge; b) an upper convex outer surface portion on said finish ring adjacent to and directly above said locking ring, said upper convex outer surface portion having a radius that is larger than said locking ring radius and a circumferential edge at an intersection of said locking ring and said upper convex outer surface portion; and c) a concave outer surface portion on said finish ring adjacent to and directly below said locking ring, said concave outer surface portion having a radius that is larger than said locking ring radius and a circumferential edge at an intersection of said locking ring and said concave outer surface portion; d) wherein said locking ring has a relatively smooth outer surface, and wherein said intersection of said locking ring and said upper convex outer surface portion and said intersection of said locking ring and said concave outer surface portion are each relatively smooth, such that said hook-type opener may pass by said locking ring unimpeded upon removal of said closure member by said hook-type opener; and e) wherein said locking ring radius and said height of said locking ring are sufficiently large to provide said relatively smooth outer surface, and said locking ring radius and said height are sufficiently small to retain said closure member on said container prior to removing said closure member with said hook-type opener.