Process of making a one-piece box

Details Process of making a one-piece box Process of making a one-piece box

1994-07-11

1996-07-02

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Plural sequential shaping or molding steps on same workpiece

2643281, 26433115, 264334, B29C 4500

Patent

active

055319530

ABSTRACT:
A one piece molded box for the storage of magnetic media devices having a cover and a base which are connected by an integrally formed hinge member. The hinge is spaced from the corner of the box allowing the box to rotate to an open position about an axis in the midsection of the outer wall of the box. The box is made of a soft copolymer plastic of polypropylene and polyethylene since these materials allow the hinge member to be flexed numerous times without breaking, are impact resistant and combine to form a transparent plastic. The cover portion of the box has protrusions on the outside of opposite sidewalls which correspond to recesses on the inside of opposite sidewalls of the base section and keep the box closed. When in the open position the tape remains in the cover portion of the box for easy insertion and removal. A method of molding a one piece box for the storage of magnetic media devices.

REFERENCES:
patent: 3670875 (1972-06-01), Jones
patent: 3900171 (1975-08-01), Serizawa
patent: 3980255 (1976-09-01), Serizawa

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