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Generated January 23, 2018

Cooling system for molded plastic fuel tanks

Patent Number: 6,845,623

Patent Information

Abstract
In a method of cooling a tank molded from thermoplastic plastic material, a molded tank is received from a metallic die assembly at a temperature somewhat lower than a melting point of the plastic material, the molded tank is retained in a jig frame, and cooling water is sprayed onto an external surface of the molded tank. Preferably, the method further comprises the step of blowing cooling air into the tank substantially at the same time as spraying cooling liquid onto an external surface of the molded tank. Thus, the molded plastic tank can be removed from the metallic die assembly at a relatively high temperature, and the use efficiency of the metallic die assembly can be improved. Also, because the tank is not subjected to any pressure or buoyant force, it is prevented from undesirably distorting. In particular, by blowing cooling air into the tank, the tank can be cooled even more quickly.
Patent Number: 6,845,623
Issue Date: 2005-01-25

Primary Category

Executive Summary

Summary

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Patent Grant Time

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Patent Claims

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Citations From Other Patents

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Proximity to Basic Research

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