Invention Grant
- Patent Title: Carton construction
- Patent Title (中): 纸箱结构
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Application No.: US3790062DApplication Date: 1971-09-27
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Publication No.: US3790062APublication Date: 1974-02-05
- Inventor: BOYD J
- Applicant: PACKAGING CORP AMERICA
- Assignee: Packaging Corp America
- Current Assignee: Packaging Corp America
- Priority: US18393871 1971-09-27
- Main IPC: B65D85/32
- IPC: B65D85/32
Abstract:
A carton is provided wherein the cover thereof is connected to the tray by an elongated hinge panel. One elongated edge of the panel is connected to the tray and forms a first hinge-line and the opposite elongated edge of the panel is connected to the cover and forms a second hinge-line. The first hinge-line has greater flexibility than the second hinge-line. Complemental means are formed on said tray and hinge panel whereby, upon closing of the carton, the cover and hinge panel initially move as a unit about the first hinge-line as an axis through a predetermined arc and then the cover moves relative to the hinge panel about the second hinge-line as an axis through a further predetermined arc into an overlying closed position with respect to the tray.
Information query
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