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:
Oct. 20, 1992
Filed:
Jun. 08, 1990
Applicant:
Inventors:
Tatsuya Nakagawa, Matsudo, JP;
Nobumasa Tatara, Honjyo, JP;
Assignee:
Excell Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264514 ; 264167 ; 264173 ; 425132 ; 425532 ; 425381 ;
Abstract
A composite parison generally cylindrical in shape and including two or more plastic materials different in characteristic is formed. Using this composite parison, a hollow plastic product of any desired shape having a locally different characteristic, such as in softness, heat-resistance or wear-resistance, can be manufactured with ease, for example, by conventional blow molding.