B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 1/16 (2006.01) B29C 51/00 (2006.01) B29D 22/00 (2006.01)
Patent
CA 2184777
A thermoformed plastic container (10) is disclosed including a sidewall (18) formed by the intersection of three portions (20, 22, 24) formed by curved planar surfaces. The bottom portion (20) is generally frustoconical in shape having cross sections corresponding to the periphery of the bottom (16) and of an increasing size linearly dependent on increased spacing from the bottom (16). The upper portion (24) is generally frustoconical in shape having oval cross sections and of a decreasing size linearly dependent on increased spacing from the flange (12). The middle portion (22) is generally frustoconical in shape having oval cross sections different from that of the bottom and upper portions (20, 24) and of an increasing size linearly dependent on increased spacing from the bottom (16). The portions (20, 22, 24) intersect at curved intersection lines (26, 32) having varying spacing from the bottom (16). The bottom portion (20) creates a chamfered edge which is larger at the longitudinal front and back of the container (10) and which is narrower at the lateral sides of the container (10). The use of curved planar surfaces in creating the sidewall (18) is advantageous in allowing computer analysis in easily and quickly fabricating prototypes for evaluation.
Brauner Arne H.
Messer Donald P.
Fetherstonhaugh & Co.
General Mills Inc.
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