Patent ID: 6659298
Filing Date: 2003-12-09
Classification: B65D

Abstract:
A polyester bottle comprising a bottleneck, a body and a bottom of the bottle, which are blown and shaped from a polyester blank,wherein said bottom has a lower portion and an arc portion in a vertical section extended between the body of the bottle to the lower portion of the bottom, said arc portion having a radius ranging over 15-25 mm; said bottom of said bottle having a concave quaquaversal portion projecting inwards, an arc radius in a vertical section of the concave quaquaversal portion is in a range of 20-35 mm, and the distance between a top of the concave quaquaversal portion of the lower portion of the bottom is in a range of 7-15 mm; a downwardly projecting support flange portion is formed at the joint between said concave quaquaversal portion and the lower portion of the bottom of the bottle, the flange portion has a height in a range of 0.1-5 mm; and said flange portion having transition arc portions respectively having different radius.