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US 5,964,102 AGranted
Cool mug
OwnerYao-Ming Tsaiinventor
Life of this patent
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Abstract
A cool mug is provided with a closed chamber defined between an outer vessel and an inner vessel. The bottom is closed with a bottom cap to form the closed chamber. The bottom cap has a hole for filling the closed chamber with a thermal storage substance for low temperatures and then the hole is sealed to prevent the thermal storage substance from leaking out. Acrylate resin copolymer is mixed with water and used as the low-temperature thermal storage substance. Further, a substance may also be added in the acrylate resin copolymer mixture for imparting freeze resistant properties thereto, and acting as an antiseptic.
Claims1
A cooling mug, comprising:
- an outer vessel having an open upper end;
- an inner vessel suspended within said outer vessel and adapted to receive beverages therein, said inner vessel having an upper rim integrally joined to an inner periphery of said outer vessel proximate said open upper end thereof, an outer surface of said inner vessel and an inner surface of said outer vessel defining a sealed chamber therebetween;
- and,
- a semi-solid thermal storage substance completely filling said sealed chamber, said thermal storage substance being produced from a mixture of (a) water, (b) an acrylate resin copolymer to form semi-solid particulates, and (c) a calcium chloride composition added to said acrylate resin copolymer for use as an antiseptic and imparting freeze resistant properties to said thermal storage substance.
1 more element
Dependencies are inferred from the claim text.