Plastic bottle for hot filling

  • US 5,704,504 A
  • Filed: 08/14/1995
  • Issued: 01/06/1998
  • Est. Priority Date: 09/02/1993
  • Status: Expired due to Term
First Claim
Patent Images

1. A plastic bottle for filling with a hot liquid, said bottle comprising:

  • a bottom section;

    a substantially cylindrical lateral wall section above said bottom section; and

    a neck above said substantially cylindrical lateral wall section;

    said substantially cylindrical lateral wall section having a single set only of a plurality of helical grooves spaced equally therearound parallel to each other, each groove having a pair of side walls extending from said lateral section and a connecting bottom wall and each pair of adjacent grooves defining a curved panel part of said lateral wall section therebetween, the panel parts defined by said plurality of grooves each having substantially the same area, said grooves to provide a vertical reinforcement for the said lateral wall and to absorb circumferential thermal and mechanical contractions of the bottle.

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