Is a
Patent attributes
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takashi Oyamada0
Date of Patent
May 9, 2006
0Patent Application Number
102185850
Date Filed
August 15, 2002
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A telecommunication device includes a housing formed by gas-assist injection molding and having an inner wall, outer wall and a hollow space formed therebetween and receiving therein gas refrigerant. The hollow space has a plurality of vertical channels wherein the gas refrigerant cools the internal of the housing by natural convection within the vertical channels. A movable wall is disposed in the vertical channel for controlling a pressure rise occurring upon a temperature rise.
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