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:
Aug. 09, 1983
Filed:
Apr. 28, 1981
Applicant:
Inventors:
Assignee:
Yoshino Kogyosho Co. Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
425525 ; 264533 ; 264296 ; 264322 ; 425392 ; 425393 ; 425D / ;
Abstract
Apparatus for drawing a mouth-neck portion of a synthetic resin bottle in the radial direction, by inserting an expanding operation zone of the apparatus into the mouth-neck portion in the heated state and expanding respective drawing pieces of the expanding operation zone in the radial direction. The apparatus includes a cylindrical wall constructed by a great number of drawing pieces, a pressing rod inserted into this cylindrical wall to expand the drawing pieces in the radial direction and an elastic tubular member to be inflated in the radial direction by high pressure compressed air.