초록 ▼

A method for joining a lid to a container includes the formation of interlocking waves of material at the location where the lid joins the container. The interlocking waves are geometrically aligned relative to the interior of the container so as to maximize the burst strength of the container and m

A method for joining a lid to a container includes the formation of interlocking waves of material at the location where the lid joins the container. The interlocking waves are geometrically aligned relative to the interior of the container so as to maximize the burst strength of the container and minimize the peel strength of the lid from the container.

대표청구항 ▼

A method of forming a peelable seal between a lid and a container, said method comprising: heating a first material forming a portion of said lid along an area to be sealed so as to melt or soften a portion of said first material, said area placed in contact with a second material forming a portion

A method of forming a peelable seal between a lid and a container, said method comprising: heating a first material forming a portion of said lid along an area to be sealed so as to melt or soften a portion of said first material, said area placed in contact with a second material forming a portion of said container, pressing said first material and said second material together along said area to be sealed forming a first sheet wave in said first material having a first sheet wave apex and forming a second sheet wave in said second material having a second sheet wave apex, and maintaining pressure on said first material and said second material along said area to be sealed so as to displace said first sheet wave apex below said second sheet wave apex, said second material remaining with said container when said lid is peeled from said container.