Thermal cup

Details Thermal cup Thermal cup

2003-03-24

2004-01-06

Paik, Sang Y. (Department: 3742)

Electric heating

Heating devices

With heater-unit housing, casing, or support means

C062S003200, C392S441000, C219S432000

Reexamination Certificate

active

06674052

ABSTRACT:

CROSS-REFERENCE TO RELATED APPLICATION
This application claims priority of Taiwanese Application No. 091218980, filed on Nov. 25, 2002.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a thermal cup, more particularly to a thermal cup that enables quick and uniform distribution of temperature of liquid contained in the cup.
2. Description of the Related Art
Referring to
FIG. 1
, a conventional thermal cup
1
is shown to include a cup body
11
having inner and outer walls
112
,
111
, a vacuum sealed chamber
12
cooperatively confined by the inner and outer walls
112
,
111
, and a space
13
confined by the inner wall
112
of the cup body
11
for containing liquid therein, and a cap
14
for closing removably an open mouth of the cup body
11
.
In use, after a liquid is poured into the space
13
of the cup body
11
and the cap
14
is fitted in place, the vacuum sealed chamber
12
provides a heat-insulating effect to prevent convection between the liquid in the cup body
11
and the ambient air so as to maintain the temperature of the liquid. However, in actual use, the heat-insulating effect is not satisfactory. In addition, the liquid in the upper and lower parts of the space
13
does not have a uniform temperature, which may result in scalding or freezing of the user's tongue during drinking.
SUMMARY OF THE INVENTION
Therefore, the main object of the present invention is to provide a thermal cup that has a thermal conductor unit disposed therein to ensure quick and uniform distribution of temperature of liquid contained in the cup, and that provides a good heat-insulating effect.
Accordingly, a thermal cup of the present invention includes:
a hollow inner cup body having an open mouth and a closed bottom, the inner cup body including an inner surrounding wall and an outer surrounding wall that confine an enclosed chamber therebetween, the inner surrounding wall further confining a space for containing liquid therein;
an outer cup body made of a heat insulating material, disposed to surround the outer surrounding wall of the inner cup body, and cooperating with the outer surrounding wall of the inner cup body to confine a clearance therebetween; and
a thermal conductor unit provided on the outer surrounding wall of the inner cup body and disposed in the clearance.


REFERENCES:
patent: 3715895 (1973-02-01), Devlin
patent: 4801782 (1989-01-01), Ineson
patent: 5361604 (1994-11-01), Pier et al.
patent: 5842353 (1998-12-01), Kuo-Liang
patent: 6072161 (2000-06-01), Stein
patent: 6422024 (2002-07-01), Foye

Affiliated with

Also associated with

Rating

Thermal cup does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermal cup, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal cup will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3220861