Electric heating – Microwave heating – With diverse device
Reexamination Certificate
2003-03-05
2004-05-18
Hoang, Tu Ba (Department: 3742)
Electric heating
Microwave heating
With diverse device
C219S689000, C219S722000, C219S739000
Reexamination Certificate
active
06737620
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a microwave oven, and more particularly, to a microwave over having a coffee maker provided in a predetermined space of the electronic device chamber.
2. Discussion of the Related Art
A microwave oven is an apparatus for thawing and heating foods by microwave.
FIG. 1
is an exploded perspective view of a general microwave oven. Referring to
FIG. 1
, the microwave oven includes a cavity
2
, an electronic device chamber
10
, a housing
4
, a door
3
, a magnetron
11
, a transformer
12
and a blower
13
.
Cavity
2
is a space accommodating foods therein and has an opened front so as to introduce or withdraw foods. Electronic device chamber
10
is arranged adjacent to the cavity
2
, and is provided therein with a variety of elements including the magnetron
11
, the transformer
12
, and the blower
13
. Magnetron it is supplied with a power of a high voltage from an outside to generate a microwave. Transformer
12
converts a power supplied from the outside to a power of a high voltage and supplies the converted power or high voltage to the magnetron
11
. Blower
13
cools the variety of elements installed within the electronic device chamber
10
, and forms an air flow passing through the interior of the cavity
2
. Housing
4
is provided to enclose the cavity
2
and the exterior of the electronic device chamber
10
, and door
3
is coupled at the front of the electronic device chamber
10
with the cavity
2
to open and close the opened front of the cavity
2
. Door
2
is also provided with a transparent door glass so that the interior of the cavity
2
can be viewed through the opened front
In the meanwhile, in a recent trend, a rotatable tray is provided on the bottom surface of the cavity
2
. For this purpose, a variety of elements including a motor for rotating the tray are provided together. Thus, in addition to the foregoing elements, many elements are provided in the microwave oven, but their detailed description will be omitted.
The microwave oven constructed as above operates as follows.
First, door
3
is opened, foods are introduced into the cavity
2
and the door
3
is closed. Control panel (not shown) is manipulated to operate the microwave oven. As the microwave oven Operates, the transformer
12
converts power to a high voltage and applies the converted high voltage to the magnetron
11
. Magnetron
11
is supplied with the high voltage to generate a microwave, and irradiates the generated microwave into the cavity
2
. The microwave irradiated into the cavity
2
vibrates water molecules of the foods to heat the foods. As the microwave is irradiated into the foods for a constant time interval, the foods are thawed or cooked while they continue to be heated.
Since the aforementioned conventional microwave oven thaws or heats foods by using a principle in which water molecules of the foods are vibrated, it fails to perform a variety of cookings. For instance, the conventional microwave oven fails to cook the coffee which the moderners enjoy drinking. In other words, for enjoying drinking the coffee, it is requested that the coffee maker be used.
In the meanwhile, as the urbanization deepens in recent years, there appears a tendency in which the living space is narrowed and practicability is pursued. As a result, it is also requested that a variety of living necessaries including the electric home appliances be made in a compact construction. In addition, there are being requested electric home appliances capable of performing various supplementary functions as well as the traditional original functions. However, the conventional microwave oven fails to satisfy such consumers' desires.
SUMMARY OF THE INVENTION
Accordingly, the present invention is directed to a microwave oven having a coffee maker that substantially obviates one or more problems due to limitations and disadvantages of the related art.
An object of the present invention is to provide a microwave oven having a coffee maker constructed to perform the function of the coffee maker while the microwave oven is maintained at the same size as the conventional one.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, a microwave oven having a coffee maker includes a cavity of which front is opened; a cavity door for opening/closing the opened front of the cavity; an electronic plurality of elements are installed to radiate microwaves into the cavity; a casing of which front is opened and provided at a front side of the interior of the electronic device chamber; a water tank provided within the casing; a funnel provided so that the funnel can enter and go out of the interior of the casing; a heater provided in a lower portion of the casing; a water supply tube being provided whose one end is connected to the water tank, the other end is positioned at the upper side of the funnel, and a part thereof is in contact with the heater; and a container provided below the funnel so that the container can enter and go out of the interior of the casing.
In an aspect of the present invention, the microwave oven further includes a casing door for opening/closing the opened front of the casing. Here, the casing door is hinge-coupled at one side of the front of the casing, and has a surface that is continuous with the cavity door.
In an aspect of the present invention, the microwave oven further includes a front cover having an opening communicating the interior of the casing with an outside of the casing. Alternatively, the microwave oven further includes a cover door completely or partially opening/closing the opening of the front cover. Also, the front cover has a surface that is continuous with the cavity door.
Preferably, the casing further includes a bracket protruded from an inner wall to an inner space so as to serve as a shelf.
The water tank rotates around a hinge and is hinge-coupled with the casing so that the water tank can enter and go out of the interior by pushing and pulling.
In an aspect of the present invention, the water tank and the funnel are formed in a single body. Here, the funnel is comprised of an outer circumferential surface made concavely in a cone shape. Also, the water tank further comprises a water tank cover formed at an upper portion of the water tank, for opening/closing an entrance of the water tank.
In the meanwhile, the container may be made in a jug. In this case, the funnel further includes a coffee discharge valve which is opened by the jug being pushed when the jug is accommodated within the casing.
The coffee discharge valve comprises: an opening/closing member inserted movably up and down into a drop hole formed at a lower portion of the funnel and moved by the jug to open/close the drop hole; and a spring arranged between the opening/closing member and the funnel, and providing an elastic force to the opening/closing member so as to be closely in contact the opening/closing member.
The opening/closing member comprises: a stick provided so as to penetrate the drop hole formed at the lower portion of the funnel; a second end portion widely formed at one end of the stick rib and pushed up by the jug; and a first end portion widely formed at the other end of the stick, for opening the drop hole when the second end portion is pushed up in a state that the first end portion closes the drop hole.
The spring is provided between the second end portion and the funnel.
The coffee discharge valve further comprises an O-s
Birch & Stewart Kolasch & Birch, LLP
Hoang Tu Ba
LG Electronics Inc.
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