Cool mug

Details Cool mug Cool mug

1997-12-10

1999-10-12

Doerrler, William

Refrigeration

Cooled enclosure

Portable receptacle

62530, 252 73, F25D 308

Patent

active

059641029

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.

REFERENCES:
patent: 4273667 (1981-06-01), Kent et al.
patent: 4369299 (1983-01-01), Honda et al.
patent: 4402195 (1983-09-01), Campbell
patent: 4570454 (1986-02-01), Campbell
patent: 5271244 (1993-12-01), Staggs
patent: 5718835 (1998-02-01), Momose et al.

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