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:
Apr. 22, 2014
Filed:
Jun. 24, 2010
Koshaku Ito, Chiyoda-ku, JP;
Yasuyuki Moriyama, Chiyoda-ku, JP;
Koshaku Ito, Chiyoda-ku, JP;
Yasuyuki Moriyama, Chiyoda-ku, JP;
Tetra Laval Holdings & Finance S.A., Pully, CH;
Abstract
An opening device for straws for liquid food containers enables a straw hole to be easily opened by piercing with a straw while avoiding easy leakage or breakage due to external force from vibrations or the like during delivery. The device includes a base and a main body, formed from packaging material, both sides of the base paper of which have been laminated with thermoplastic resin and a top, formed from thermoplastic resin, which is joined to the top of the main body. An opening of the opening device for straws, integrated with the top section, is provided with a plurality of step sections and between-step sections on the front and back surfaces. The front between-step sections and the back between-step sections overlap at the edge of each of the step sections, with the thickness at the edge of the between-step sections being thinner than that of the steps.