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:
May. 31, 1994
Filed:
Jul. 28, 1992
Walter During, Zurich, CH;
During AG, Dallikon, CH;
Abstract
To place material accumulations, which is unavoidable upon blow-molding a bottle, in a separable two-part blow mold form away from a bottom fold line (2) of the bottle, in which the bottom portion of the bottle is formed with a generally inverted V-shaped depression (3) and the apex of the V defines the bottom fold line, the separating seam (9) in the bottom portion is placed at an angle (.alpha.) with respect to the bottom fold line (2), a central region of the bottom separating seam intersecting, at least approximately, the bottle axis (17). The mold form has a body separating plane (12) and an end portion separating plane (16, 23, 25) in which the end portion separating plane is angled by the angle (.alpha.) with respect to the body separating plane. Upon blow-molding, the bottom seam (9) and the bottom fold line (2) will be non-congruent, and material accumulation (11) upon blow-molding the bottle will occur at locations remote from the bottom fold line (2), thus not interfering with folding the bottle along the bottle fold lines (2, 15). This method is suitable for bottles of integral shape, as well as bottles having an integral molded-in handle.