Smoke exhauster having forwarded fan casing

Information

  • Patent Grant
  • 6782885
  • Patent Number
    6,782,885
  • Date Filed
    Tuesday, August 5, 2003
    20 years ago
  • Date Issued
    Tuesday, August 31, 2004
    19 years ago
Abstract
A smoke exhauster includes a housing having an inclined plate extended forwardly and downwardly from an upper panel of the housing, a fan casing includes an upper panel secured to the upper plate of the housing to support one or more motors or fan devices, and includes a cut off portion formed in the front portion to receive the inclined plate of the housing and to allow the fan casing to be disposed forwardly relative to the housing, The fan casing and thus the fan device are disposed forwardly relative to the housing for allowing the fan device to effectively draw smoke or the like.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention relates to a smoke exhauster, and more particularly to a smoke exhauster having a fan casing that may be disposed in the front portion of the housing of the smoke exhauster, to effectively draw smoke or the like.




2. Description of the Prior Art




The applicant has developed various kinds of typical smoke exhausters which comprise a fan casing disposed in the inner and rear portion of the housing of the smoke exhauster, to receive one or more fan devices therein, and to draw smoke or the like out through the smoke exhausters.




For example, U.S. Pat. No. 6,214,073 B1, and U.S. Pat. No. 6,284,011 B1 to Chiang et al. disclose two of the typical smoke exhausters which also comprise a fan casing disposed in the inner and rear portion of the housing of the smoke exhauster, to receive one or more fan devices therein.




Normally, the housing of the smoke exhauster includes an inclined surface or panel disposed or arranged in the front portion thereof for supporting control panels, filter members, or other indicating lights. The fan casings normally include a parallelepiped structure that may only be disposed in the inner and rear portion of the housing of the smoke exhauster due to the inclined surfaces or panels that are disposed or arranged in the front portions of the housings of the smoke exhausters.




When the fan casings are disposed in the inner and rear portions of the housings of the smoke exhausters, the fan casings and thus the fan devices may only be disposed rearwardly relative to the cook stoves, and thus may not be uses to effectively draw the smoke or the like, as shown in FIG.


8


.




The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional smoke exhausters.




SUMMARY OF THE INVENTION




The primary objective of the present invention is to provide a smoke exhauster having a fan casing that may be disposed in the front portion of the housing of the smoke exhauster, to effectively draw smoke or the like.




In accordance with one aspect of the invention, there is provided a smoke exhauster comprising a housing including an upper plate, and an inclined plate extended forwardly and downwardly from the upper panel of the housing, a fan casing including an upper panel secured to the upper plate of the housing, and including a cut off portion formed in a front portion thereof to receive the inclined plate of the housing, and to allow the fan casing to be disposed forwardly relative to the housing, at least one motor including an upper board secured to the upper panel of the fan casing, and a fan device attached to the motor, and to be driven by the motor, an attachment of the fan casing forwardly relative to the housing allows the motor and the fan device to be disposed forwardly relative to the housing, and thus to allow the fan device to effectively draw smoke or the like.




The cut off portion of the fan casing is preferably defined by an inclined panel for engaging with the inclined plate of the housing, and having a slope identical to that of the inclined plate of the housing, to allow the inclined panel of the fan casing to be snugly engaged with the inclined plate of the housing, and thus to allow the fan device to be disposed forwardly relative to the housing.




The motor preferably includes a cut off portion disposed below the cut off portion of the fan casing, and preferably defined by an inclined board to engage with the inclined panel of the fan casing, to allow the motor to be further disposed forwardly relative to the housing.




Further objectives and advantages of the present invention will become apparent from a careful reading of the detailed description provided hereinbelow, with appropriate reference to the accompanying drawings.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a partial exploded view of a smoke exhauster in accordance with the present invention;





FIG. 2

is a cross sectional view of the smoke exhauster as shown in

FIG. 1

;





FIGS. 3

,


4


are cross sectional views similar to

FIG. 2

, illustrating the other arrangements of the smoke exhauster;





FIGS. 5

,


6


are partial cross sectional views similar to

FIGS. 2-4

, illustrating the further arrangements of the smoke exhauster;





FIG. 7

is a side plan schematic view illustrating the operation of the smoke exhauster; and





FIG. 8

is a side plan schematic view illustrating the operation of a typical smoke exhauster.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT




Referring to the drawings, and initially to

FIGS. 1 and 2

, a smoke exhauster in accordance with the present invention comprises a housing


10


including an upper plate


11


having one or more openings


12


formed therein for air circulation purposes, and an inclined plate


14


extended forwardly and downwardly from the upper panel


11


. The housing


10


includes a bottom plate


16


having one or more passages


17


formed therein for air circulation purposes.




One or more fan casings


30


include an upper panel


31


secured to the upper plate


11


of the housing


10


with such as fasteners


15


, and having one or more orifices


32


formed therein and aligned with the openings


12


of the housing


10


for air circulation purposes. The fan casings


30


include a bottom panel


38


to be contacted or engaged with the bottom plate


16


of the housing


10


and having one or more apertures


39


formed therein and aligned with the passages


17


of the housing


10


for air circulation purposes.




Each of the fan casings


30


includes a cut off portion


34


formed in the front portion thereof or defined by an inclined panel


33


which is extended forwardly and downwardly from the upper panel


31


, and preferably having a slope or curvature identical to that of the inclined plate


14


of the housing


10


, to receive the inclined plate


14


of the housing


10


, and to allow the inclined panel


33


to be snugly engaged with or contacted with the inclined plate


14


of the housing


10


, best shown in

FIGS. 2

,


5


,


6


.




In operation, as shown in

FIGS. 4-7

, the formation or the provision of the cut off portions


34


and/or the inclined panels


33


in the fan casings


30


allows the fan casings


30


and the passages


17


of the housing


10


to be disposed or arranged forwardly relative to the housing


10


, and thus for allowing the fan casings


30


to be attached to the front portion of the housing


10


.




One or more motors


40


include an upper board


41


secured to the upper panel


31


of the fan casing


30


with such as fasteners


42


, and one or more fan devices


43


attached to the bottom thereof for being driven by the motors


40


to draw air through the orifices


32


of the fan casings


30


and the openings


12


of the housing


10


.




As best shown in

FIGS. 4-7

, the attachment of the fan casings


30


to the front portion of the housing


10


allows the motors


40


to be attached or disposed in the front portion of the housing


10


, and thus for allowing the motors


40


and the fan devices


43


to effectively draw smoke out through the orifices


32


of the fan casings


30


and the openings


12


of the housing


10


.




Each of the motors


40


preferably includes a cut off portion


44


formed in the front portion thereof or defined by an inclined board


45


which is extended forwardly and downwardly from the upper board


41


, and preferably having a slope identical to that of the inclined panel


33


of the fan casing


30


, for allowing the cut off portion


44


of the motors


40


to be disposed below the cut off portion


34


of the fan casing


30


.




The inclined board


45


of the motor


40


may thus be snugly engaged with or contacted with the inclined panel


33


of the fan casing


30


, best shown in

FIG. 2

, thus for allowing the motors


40


to be attached to the front portion of the fan casing


30


.




As shown in

FIGS. 3 and 4

, the cut off portions


34


of the fan casings


30


may also be formed or defined by a horizontal flap


35


and a vertical flap


37


, instead of the inclined panel


33


of the fan casings


30


, and thus may also be disposed or attached to the front portion of the housing


10


.




As shown in

FIG. 3

, the cut off portions


44


of the motors


40


may also be formed or defined by a horizontal flap


47


and a vertical flap


48


, instead of the inclined board


45


of the motors


50


, to receive the inclined panel


33


of the fan casing


30


or the horizontal flap


35


and the vertical flap


37


, and thus may also further be disposed or attached forwardly to the front portion of the fan casings


30


and thus to the front portion of the housing


10


.




In operation, as shown in

FIG. 7

, the attachment of the fan casings


30


and thus the motors


40


to the front portion of the housing


10


allows the motors


40


and the fan devices


43


and the passages


17


of the housing


10


to be disposed forwardly relative to the cooking stoves


70


, or to be disposed right above the cooking stoves


70


, to effectively draw smoke out through the orifices


32


of the fan casings


30


and the openings


12


of the housing


10


.




Accordingly, the smoke exhauster in accordance with the present invention includes a fan casing that may be disposed in the front portion of the housing of the smoke exhauster, to effectively draw smoke or the like.




Although this invention has been described with a certain degree of particularity, it is to be understood that the present disclosure has been made by way of example only and that numerous changes in the detailed construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed.



Claims
  • 1. A smoke exhauster comprising:a housing including an upper plate, and an inclined plate extended forwardly and downwardly from said upper panel of said housing, a fan casing including an upper panel secured to said upper plate of said housing, and including a cut off portion formed in a front portion thereof to receive said inclined plate of said housing, said cut off portion of said fan casing being defined by an inclined panel to engage with said inclined plate of said housing, and to allow said fan casing to be disposed forwardly relative to said housing, at least one motor including an upper board secured to said upper panel of said fan casing, and a fan device attached to said at least one motor, and to be driven by said at least one motor, an attachment of said fan casing forwardly relative to said housing allows said at least one motor and said fan device to be disposed forwardly relative to said housing.
  • 2. The smoke exhauster as claimed in claim 1, wherein said inclined panel of said fan casing includes a slope identical to that of said inclined plate of said housing, to allow said inclined panel of said fan casing to be snugly engaged with said inclined plate of said housing.
  • 3. A smoke exhauster comprising:a housing including an upper plate, and an inclined plate extended forwardly and downwardly from said upper panel of said housing, a fan casing including an upper panel secured to said upper plate of said housing, and including a cut off portion formed in a front portion thereof to receive said inclined plate of said housing, and to allow said fan casing to be disposed forwardly relative to said housing, at least one motor including an upper board secured to said upper panel of said fan casing, and including a cut off portion disposed below said cut off portion of said fan casing, to allow said at least one motor to be further disposed forwardly relative to said housing, and a fan device attached to said at least one motor, and to be driven by said at least one motor, an attachment of said fan casing forwardly relative to said housing allows said at least one motor and said fan device to be disposed forwardly relative to said housing.
  • 4. The smoke exhauster as claimed in claims 3, wherein said cut off portion of said at least one motor is defined by an inclined board.
US Referenced Citations (7)
Number Name Date Kind
5515840 Jang May 1996 A
5775319 Pettinari Jul 1998 A
6044838 Deng Apr 2000 A
6214073 Chiang et al. Apr 2001 B1
6216686 Chiu Apr 2001 B1
6284011 Chiang et al. Sep 2001 B1
20030056784 Yeung Mar 2003 A1