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:
Jun. 17, 2008
Filed:
Jun. 18, 2002
Hiroshi Takeda, Nagano-ken, JP;
Hiroshi Takeda, Nagano-ken, JP;
A.K. Technical Laboratory, Inc., Nagano-ken, JP;
Abstract
To solve the limit of wall-thickness adjustment of a preform for a small flat container by a flat core by forming the outer side of a step-up-formed large-wall-thickness shell part with reducing wall thickness. A preformfor a small flat container whose inside diameter is completely circular and restricted to a small value is used. A shell partis step-out-formed from the boundary between a neck partand a shell partso that the shell parthas a diameter larger than the neck part. A difference is provided between wall thickness of forward/backward sidesand right/left sidesof the shell partby forming the outer side of the shell part into an ellipse form or the like from the underside of step-out at with reducing wall thickness. A stepped out partis left like a disk in the underside of the neck part.