Molded article
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United States of America Patent
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-
Sep 21, 1999
Grant Date -
N/A
app pub date -
Nov 3, 1997
filing date -
Nov 3, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
An article, such as a container, includes a bottom wall, a sidewall and rim around a top end to strengthen the sidewall and to provide a handle for lifting the article. The rim includes a first lip extending radially outward with respect to the container to provide strength and rigidity to the rim and sidewall. The first lip is formed by two substantially parallel layers of material that can be spaced apart or bonded together. A second flexible lip extends radially from the rim and is axially spaced from the first lip. The second lip forms a continuous open channel enabling the second lip to be gripped from the inside of the article. The second lip has a radial dimension greater than the first lip to limit contact of the first lip with an adjacent object. An article is made by a blow molding process and apparatus having moving segment molds. A thermoplastic parison is inflated to contact the mold surfaces. The moving mold segments then compress a portion of the plastic to form the first lip.
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