Object intended to be held in the hand, in particular a suitcase

Details Object intended to be held in the hand, in particular a suitcase Object intended to be held in the hand, in particular a suitcase

1979-12-18

1982-07-27

Kundrat, Andrew V.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Sash balances

Spring

190 39, 190 58R, 264 451, 264DIG83, A45C 1326

Patent

active

043409903

ABSTRACT:
The present invention proposes a process for manufacturing an object intended to be held in the hand and which comprises a body made from a plastic material reinforced inside by means of a frame and comprising at least one grasping zone having a hardness less than that of its other parts. This process consists in placing the frame in a mould comprising an injection aperture in the part of its cavity corresponding to the grasping zone of the object, closing the mould, injecting into the cavity a definite amount of a compact plastic material, this amount being insufficient to completely fill the mould, then injecting an amount of expanded plastic material to completely fill the cavity, the expanded plastic material, which while penetrating inside the volume of the non-solidified compact material, forces this latter to come into contact with the whole internal surface of the cavity of the mould and to cover the frame, and removing the object from the mould after cooling of the two plastic materials.

REFERENCES:
patent: 3161436 (1964-12-01), Hood
patent: 3444967 (1969-05-01), Lautin
patent: 3500973 (1970-03-01), Bush
patent: 3813729 (1974-06-01), Szabo
patent: 3991146 (1975-03-01), Barrie

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