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. 08, 1977
Filed:
Jan. 24, 1975
Applicant:
Inventors:
Michel Lorge, Brussels, BE;
Roger Houba, Gembloux, BE;
Assignee:
Solvay & Cie, Brussels, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264 89 ; 264 98 ; 264296 ; 425D / ;
Abstract
The production of oriented hollow plastic articles having no weakened zone particularly in their bottom is ensured by blow molding of preforms having a base sealed along a straight line of length practically the same as half the perimeter of their cylindrical lateral part and gradually by changing from the cylindrical shape to the rectilinear shape in the region of the base so that the perimeter remains practically constant throughout all cross-sections.