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Summary:A reusable receptacle, and the method of producing the receptacle, for receiving liquid based substances, such as coffee, which rapidly cools the substance to obtain a consumable temperature and which substantially maintains a warm consumable temperature over a sufficient period of time. The receptacle includes a liquid receiving chamber, an interstitial chamber for receiving a phase change material and an interstitial chamber for providing a vacuum insulating chamber. The method of forming the receptacle includes the steps of welding the various wall members to form an integrated thermal mug in an efficient manufacturing process.
Bibliography:Application Number: US201313971730