Clam shell container with cover and inner tray
AssigneeInternational Paper Company
InventorRaymond Sullivan
Life of this patent
Estimating the term…
Abstract
The clam shell container is formed by a cover formed of cardboard, chipboard or other similar material. A thermoform plastic tray is adhered to the inner surface of the cover to form the completed clam shell container. When closed, the edges of the tray move closer to the edges of the cover. The thermoform is bonded to the tray with adhesive and the container is closed to allow the adhesive to cure in the closed configuration. When opened, stress is created by the tray being fixed to the cover. To alleviate the stress, perforations between the tray sections and the spine break forming three distinct sections. In the open configuration, a small gap is created between the tray section and the spine.
Claims10
A container, comprising:
- a cover having a front, a back and a spine, a first hinge connecting said front to said spine and a second hinge connecting said back to said spine,
- a tray having a front, a back and a spine,
- said tray fixed to said cover,
- said container having a original configuration before the container is initially opened and a final configuration after the container is initially opened, and
- said tray front, tray back and tray spine attached to one another in said original configuration and separated from one another in said final configuration.
A method of making a container, comprising:
- forming a cover with a front hingedly connected to a spine by a first fold line, said spine hingedly connected to a back by a second fold line,
- forming a tray with a front, a spine and a back separably attached to one another,
- applying adhesive to said tray, and placing said tray on said cover, and
- closing said cover and allowing said adhesive to cure.
Dependencies are inferred from the claim text.