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:
Feb. 03, 1998
Filed:
Mar. 21, 1996
Applicant:
Inventors:
Minoru Sugawara, Ichihara, JP;
Koki Hirano, Ichihara, JP;
Katsuhiko Tada, Ichihara, JP;
Tetsuya Nakamura, Ichihara, JP;
Assignee:
Idemitsu Petrochemical Co., Ltd., Ichihara, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 71 ; 428 357 ; 428120 ; 428124 ; 428126 ; 428159 ; 428161 ; 428192 ; 428217 ; 4283044 ; 4283099 ; 264 465 ; 264134 ; 264240 ; 264257 ;
Abstract
Tubular parison of a molten resin to such an extent as to melt undergoes a pre-blow with a blow molding apparatus, whereupon the blown tubular parison is clamped between dies of a blow molding apparatus, and also, is mutually weld together with parts of the inside faces of the tubular parison to form a multiple of isolated hollows in the parison. Gas is fed through a multiple of gas feed nozzles which are provided in the die into the hollow portions. A number of the hollow portions are opened in a second process to form a functional part.