Method for making thermally insulated synthetic resin implement

Details Method for making thermally insulated synthetic resin implement Method for making thermally insulated synthetic resin implement

B - Operations, Transporting

29

D

B29D 24/00 (2006.01) A47J 41/02 (2006.01) B65D 81/38 (2006.01)

Patent

CA 2236758

A double-walled structure is assembled by arranging an outer shell member (3) over an inner shell member (2) with an intervening space section (4). The shells (2, 3) are joined by bonding the peripheries (2a, 3a) of the shell members (2, 3). Air or a gas having a lower thermal conductivity than air is introduced into the space section (4) through a gas inlet opening (3b) to a certain pressure. The peripheral section (z) of the gas inlet opening (3b) is then fusion sealed to produce a thermally insulated implement

Cette invention concerne une structure à double paroi assemblée en disposant une coquille extérieure (3) sur une coquille intérieure (2) en ménageant un espace vide (4) entre les deux. Les deux coquilles (2, 3) sont collées l'une à l'autre par leur périphérie (2a, 3a), puis de l'air ou un gaz à conductivité thermique inférieure à celle de l'air est injecté dans l'espace vide (4) sous une certaine pression, par une ouverture d'admission (3b). La section périphérique (z) de l'ouverture d'admission (3b) est alors scellée par fusion pour produire un article isotherme.

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