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. 08, 1993
Filed:
Mar. 21, 1991
Applicant:
Inventors:
Yusuke Terauchi, Tokyo, JP;
Toshiaki Kakemura, Tokyo, JP;
Chiaki Takasaki, Tokyo, JP;
Tatsuo Furuse, Tokyo, JP;
Assignee:
Toppan Printing Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
425522 ; 249135 ; 425812 ;
Abstract
A mold for plastic bottles is designed to have an internal arithmetic average of roughness height of a cavity-forming wall to be less than 0.25 .mu.m. The mold has air passages for decompressing air in the cavity and absorbing the air between the wall and a parison expanded by blowing into it. The mold has air suction passages around the mouth portion of the mold and between the main body and the bottom portion of the mold. The surface of the bottle and the molds have so little air stagnated between the mold and the bottle wall that the resulting bottle results in a high gloss.