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Package structure for spark plugs
| Details |
Inventors: Hadtke, Frederick B.;
Assignee: Champion Spark Plug Company (Toledo, OH)
Primary Examiner: Price; William
Assistant Examiner:
Attorney, Agent or Firm: Purdue; John C.
A package structure is disclosed. The structure comprises a lid and a base, both of a flexible material which is relatively reistant to elongation and compression. The lid and the base are movable relative to one another between an open position and a closed position. The lid has a central, substantially planar lid panel, and lid channel means which is integral with, and extends about a major portion of the periphery of, the lid panel. The base has a generally flat base panel, and a stepped base wall which is integral with, and extends completely around the periphery of, the base panel. When the lid and the base are in a closed position, the channel means and the step of the stepped base wall abut one another. The structure also includes a base insert adjacent the base panel, interior of said stepped wall. The insert is sufficiently stiff and extends into sufficiently close proximity with opposed portions of the base that it is operable to strengthen the base against flexing. |
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DETAILED DESCRIPTION The present invention relates to an improved package structure for shipping and displaying spark plugs.
The package structure includes a generally flat lid connected by a hinge along one end thereof to a base.
The lid and the base, in one embodiment of the invention, have cooperating curved channels throughout their respective peripheries.
In a closed position, the lid channel is received within the base channel, or, visa versa, the base channel is received within the lid channel, throughout the peripheries of the two, thereby securely, but releasably, retaining the lid in the closed position and increasing the overall strength of the package structure.
In another embodiment, there are two opposed lid channels, one extending along one of a first pair of opposed edges of the lid panel and inwardly along the other two of the opposed edges, and the other extending along the other of the first pair of opposed edges and inwardly along the other two of the opposed edges; the base has a stepped wall which extends completely around the base panel.
When the lid and the base are in a closed position, the step of the stepped wall and the lid channels abut one another.
The structure also includes two upstanding opposed raised portions integral with the bottom of the base.
The raised portions include recesses for receiving the opposed ends of a plurality of spark plugs to support them in alternating fashion within the base.
Each of the recesses includes two opposed lip portions operable to retain the ends of the spark plugs releasably within the recesses.
A cardboard insert strengthens the package structure.
A bottom portion of the insert extends throughout the base between the opposed raised portions and the front and rear ends.
The insert also has end portions which extend upwardly along the front and rear ends of the package structure and a top portion which extends throughout the lid.
The sides of the base are tapered slightly inwardly from top to bottom, and a plurality of feet may be formed on either or both of the sides of the package structure extending outwardly therefrom so that the package structure is capable of standing upwardly on one or both sides
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