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:
Dec. 17, 2013
Filed:
Jan. 30, 2006
Toshiya Sato, Sodegaura, JP;
Toshiya Sato, Sodegaura, JP;
Idemitsu Unitech Co. Ltd., Tokyo, JP;
Abstract
In manufacturing an easy-open container (), a flange () of a container body () and a lid () are heat-sealed, where a circular sealing board () having a curved surface on an inner circumferential edge and an inclined surface on an outer circumferential edge side is pressed onto an upper side of the flange () to form a swelling gathered resin part () formed of respective resin components of a surface layer () of the container body (), a subsurface layer () adjacent to the surface layer () and a seal layer () of the lid (), while heat-sealing the surface layer () of the container body () and the seal layer () of the lid (). With the arrangement, the easy-open container () having both a high sealing performance and an easy-open performance can be provided with low cost.