Box-shaped plastic housing of integrally molded resin
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United States of America Patent
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Jun 8, 1999
Issued Date -
N/A
app pub date -
Jul 9, 1993
filing date -
Oct 15, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A box-shaped plastic housing of integrally molded resin comprises a flat-shaped bottom wall having a peripheral edge and an upright wall extending upwardly from the peripheral edge of the bottom wall. The bottom wall and the upright wall cooperatively define an integral box-shaped molded product. The thickness of the bottom wall is in the range of two-thirds to one-third with respect to the thickness of the upright wall. The bottom wall is provided with at least one rib on its inner surface. The housing is produced by an injection molding process using a mold having a mold cavity which is provided with a groove on the inner surface of the cavity corresponding to each rib.
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