Foods and beverages: apparatus – Cooking – Intercontrol or safety control
Reexamination Certificate
2002-12-12
2003-07-22
Simone, Timothy F. (Department: 1761)
Foods and beverages: apparatus
Cooking
Intercontrol or safety control
C099S348000, C099S492000, C366S205000, C366S206000, C366S314000, C366S601000, 24, 24
Reexamination Certificate
active
06595113
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a radiating structure for a motor of a food processor, more particularly a radiating structure, which allows heat produced by a motor of a food processor to be dissipated effectively.
2. Brief Description of the Prior Art
Referring to
FIG. 1
, a conventional food processor
1
includes a lower part
11
, a motor
12
, and a food container
14
. The motor
12
is disposed in the lower part
11
with an upper end of a shaft
121
thereof sticking out from a top of the lower part
11
. There are air inlets
17
and air outlets
18
formed on a bottom and lateral sides of the lower part
11
respectively. There is a fan
19
connected to a lower end of the shaft
121
and faced with the air inlets
17
of the lower part
11
. There is a revolving member
13
joined to the upper end of the shaft
121
.
The food container
14
has cutting blades
15
disposed in a lower portion thereof. Arranged under the bottom of the food container
14
is a connecting block
16
; the connecting block
16
is further connected to a shaft (not numbered) joined to the cutting blades
15
. When the food container
14
is placed on top of the lower part
11
, the connecting block
16
will engage the revolving member
13
so that rotary movement of the shaft
121
can be passed on to the cutting blades
15
in the food container
14
. Thus, food held in the food container
14
can be cut into small pieces when the motor
12
is actuated.
The fan
19
is turned together with the shaft
121
to make air flow into the lower part
11
via the air inlets
17
to absorb heat produced by the motor
12
when the motor
12
is working. And, air travels to outside via the air outlet
18
after passing over the motor
12
, dissipating heat produced by the motor
12
. However, the air outlets
18
are likely to affect the appearance of the food processor badly, and water and juice of food are prone to flow into the lower part
11
to cause damage to the motor.
12
because the air outlets
18
are provided on the lateral sides of the lower part
11
. And, air traveling into the lower part
11
can't easily travel to outside, and will move around the inner space of the lower part
11
because there are no fans provided for helping air traveling to outside from the air outlets
18
. Consequently, heat produced by the motor can't be efficiently dissipated.
Referring to
FIG. 2
, another conventional food processor
2
includes a lower part
21
, a motor
23
, and a food container
22
. The motor
23
is disposed in the lower part
21
, and has a shaft, which is connected to a fan
27
, and a revolving member
24
at a lower end, and an upper end respectively. There are air inlets
28
and air outlets
29
formed on a bottom of the lower part
21
; the air outlets
29
are spread out near to the edge of the bottom of the lower part
21
, and the air inlets
28
are spread out closer to the center of the bottom to be right below the fan
27
.
The food container
22
has cutting blades
26
disposed in a lower portion thereof. A connecting block
25
is connected to a lower end of a shaft (not numbered) joined to the cutting blades
26
. The revolving member
24
, and the connecting block
25
are formed with engaging surfaces on an upper side and a lower side respectively so that when the food container
22
is placed on top of the lower part
21
, rotary movement of the shaft of the motor
13
can be passed on to the cutting blades
26
.
When the motor
23
is working, the fan
27
will force air to travel from the atmosphere into the lower part.
21
via the air inlets
18
. Thus, heat produced by the motor
23
can be reduced: when air travels from the lower part
21
to the atmosphere. However, the efficiency of heat dissipation of the food processor is not good enough because hot air just traveling out from the air outlets
29
can be forced to travel into the lower part
21
again through the inlets
28
, and because a portion of air just traveling through the inlets
28
can easily travel to outside via the outlet
29
without passing over the motor
27
to absorb the heat. Furthermore, in light of the fact that hot air moves upwards, the position of the air outlets
29
is not ideal
SUMMARY OF THE INVENTION
It is a main object of the present invention to provide a food processor, of which the parts are structured so that heat produced by the motor thereof can be dissipated relatively efficiently.
It is another object of the present invention to provide a food processor, which is constructed in such a manner that water or food juice can't easily flow into the housing part to cause damage to the motor thereof.
The food processor includes an outer shell and an inner shell, which is arranged in the outer shell with a passage formed in between. The inner shell has vent holes on the top, and has a revolving member disposed above it; the revolving member can turn together with the shaft of a motor to force air to travel through the passage. The motor is disposed in the inner shell, and is connected to a fan disposed right above air inlets of a base. When the motor is working, air is forced to travel over the motor and through the vent holes and the passage to outside, thus dissipating heat produced by the motor.
REFERENCES:
patent: 3548280 (1970-12-01), Cockroft
patent: 3809325 (1974-05-01), Marrie
patent: 4487509 (1984-12-01), Boyce
patent: 4568193 (1986-02-01), Contri et al.
patent: 4681030 (1987-07-01), Herbert
patent: 4921174 (1990-05-01), Okada et al.
patent: 4921175 (1990-05-01), Okada et al.
patent: 4941403 (1990-07-01), Cimenti
patent: 5031518 (1991-07-01), Bordes
patent: 5184893 (1993-02-01), Steele et al.
patent: 5316382 (1994-05-01), Penaranda et al.
patent: 5347205 (1994-09-01), Piland
patent: 5556198 (1996-09-01), Dickson, Jr. et al.
Chang Wen-Hsien
Simone Timothy F.
LandOfFree
Radiating structure for a motor of a food processor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Radiating structure for a motor of a food processor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiating structure for a motor of a food processor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3052991