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:
Jan. 27, 1981
Filed:
Aug. 13, 1979
Alfred C Alberghini, Dunwoody, GA (US);
Sewell Plastics, Inc., Atlanta, GA (US);
Abstract
A plastic container, especially well suited for carbonated beverage bottles, with a specially designed bottom to minimize stress and improve parison blowing is disclosed. The bottom end has a modified hemispherical shape contiguous with the sidewalls and a continuous seating ring, for stably supporting the bottle on a flat surface which is of convex annular shape and positioned between the seating ring and a center portion is an intermediate portion. The intermediate portion consists of two truncated cones defining an excluded volume. The first truncated cone has a generatrix of about 18.degree. and the second truncated cone has a generatrix of about 55.degree.. The excluded volume defined by the first and second truncated cones is increased by an odd number of equally sized and equally spaced semi-ellipsoid shaped portions. The center portion is convex and particularly designed for positioning the parison in the mold for blow molding.