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Crush-resisting paperboard clamshell carton

  • US 6,223,979 B1
  • Filed: 12/01/1999
  • Issued: 05/01/2001
  • Est. Priority Date: 12/01/1999
  • Status: Expired due to Fees
First Claim
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1. First and second paperboard clamshell cartons each being in an open disposition, the first carton being nested inside the second carton and each of the cartons comprising:

  • a clamshell tray member comprising a bottom panel, opposing front and rear walls, and opposing first and second side walls disposed obliquely to said bottom panel and having a top outer edge, a predetermined minimum distance existing between the top outer edge of said first side wall and the top outer edge of said second side wall, a clamshell cover member comprising a top panel and opposing non-free-swinging first and second lateral panels disposed obliquely to said top panel and attached thereto at respective first and second lateral panel fold lines, a predetermined maximum distance existing between said first and second lateral panel fold lines;

    wherein;

    (a) the predetermined maximum distance between said first and second lateral panel fold lines is slightly longer than the predetermined minimum distance between the top outer edge of said first side wall and the top outer edge of said second side wall, and (b) said rear wall is hingedly attached to said bottom panel and said top panel is hingedly attached to said rear wall and both said rear wall and said top panel are free-swinging.

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