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Self locking container

  • US 4,252,267 A
  • Filed: 01/07/1980
  • Issued: 02/24/1981
  • Est. Priority Date: 01/07/1980
  • Status: Expired due to Term
First Claim
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1. A self locking container prepared from a single blank of paperboard or the like comprising a tray portion and an integral cover portion, said tray portion including a bottom panel with upstanding front, rear and first opposed side walls foldably attached thereto, said front and rear walls further including a plurality of corner connecting panels foldably attached to the ends thereof, and said cover portion including a top panel with a front and second opposed side walls foldably attached to the outer edges thereof, said second opposed side walls further including a pair of corner connecting flaps foldably attached thereto adjacent the front wall, the improvement wherein the front, rear and first opposed side walls of the tray portion are locked and secured together without adhesive by a first tab and slot combination provided between the first opposed side walls and the corner flaps attached to the front and rear walls, and the front and second opposed side walls of the cover portion are locked and secured together without adhesive by a second tab and slot combination provided between the front wall and the corner flaps attached to the second opposed side walls, the tab elements of said second tab and slot combination further providing an automatic locking feature between the tray portion and the cover portion when the container is closed.

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