초록 ▼

A plastic closure for a container is molded in an integral single piece. The closure includes a closure ring at the bottom which seats in the opening in the container, a spout at the top of the closure; above the spout is a dual purpose closure element which seals the closure before its first use, a

A plastic closure for a container is molded in an integral single piece. The closure includes a closure ring at the bottom which seats in the opening in the container, a spout at the top of the closure; above the spout is a dual purpose closure element which seals the closure before its first use, and after the closure element is initially torn loose, the closure element is thereafter emplaced in and removed from the spout to seal the spout; integrally molded between the base of the closure element and the top of the spout is a tear off band having a removal handle such that drawing upon the handle removes the band and separates the closure element from the spout.

대표청구항 ▼

In an integrally formed plastic closure means for closing an opening in a container wherein said closure means comprises: a base, said base having a bottom which has an opening into it; a ring at said base which is adapted to be introduced into the container opening; a snap fastening slot on said ba

In an integrally formed plastic closure means for closing an opening in a container wherein said closure means comprises: a base, said base having a bottom which has an opening into it; a ring at said base which is adapted to be introduced into the container opening; a snap fastening slot on said base for seating against the container, thereby to hold said closure means in position on the container; a noncompressible spout defined at the opposite end of said closure means from said base and comprising an opeing into said closure means; said spout having a base end and a closable end; a compressible bellows extending from said base to said spout base end; said closure means being hollow from said base opening through said bellows and said spout, thereby to enable fluent material to pass completely through said closure means; a closure element for closing said spout opening; said closure element comprising a hollow cylinder having a first open end; said hollow cylinder having an opposite second end; an integrally connecTed disc sealing closed said cylinder second end of said closure element; joining means for joining said closure element to said spout closable end; and the entire said closure means being a one piece, integral plastic material unit, the improvemet comprising: said joining means comprising a tear band interposed between and integrally connected on the one hand with said closure element cylinder first end and on the other hand with said spout around said spout closable end; at said integral connection between said spout closable end and said tear band is defined a first tearable section that is comprised of such material and that is of such thickness and that has such characteristics that it is adapted to be torn upon application of tearing force thereto; at said integral connection between said closure element cylinder first end and said tear band is defined a second tearable section that is comprised of such material and that is of such thickness and that has such characteristics that it is adapted to be torn upon application of tearing force thereto; a graspable handle integrally formed on said tear band such that grasping and pulling said handle tears said first and said second tearable sections and thereby tears said tear band from said closure means and enables removal of said tear band, to initially separate the integrally connected said tear band from both of said spout and said closure element; said compressible bellows being shaped such that when said bellows is compressed, the portion of said spout and of said closure element at said tear band are compressed by the compression of said bellows inside the portion of said bellows away from said tear band, whereby said tear band and said tearable sections are within and protected by said bellows; said spout and said closure element cylinder being respectively cooperatingly contoured such that said closure element cylinder is shaped to seal said spout opening after said tear band has been removed from said closure means; said closure element having a grippable portion by which said closure element can be held, removed and replaced on said spout opening.