GREASE FILTER ASSEMBLY FOR
A grease filter assembly for use in a range hood to remove airborne grease is disclosed to include an air deflector with guide rollers and grille, a roll of grease filter mounted in a filter supply chamber at the air deflector with one end of the grease filter extending out of the filter supply chamber over the grilles and the guide rollers into a waste filter collecting chamber, and a motor mounted in the air deflector and controllable to transfer the grease filter into the waste grease collecting chamber by means of a sheet-transfer cylinder and an impression cylinder.
(a) Technical Field of the Invention
The present invention relates to grease filters for range hood and more particularly, to a grease filter assembly that collects waste grease filter and supplies new grease filter automatically.
(b) Description of the Prior Art
Regular range hoods include two types, i.e., the type with grease filter and the type without grease filter. A range hood without grease filter directly sucks in waste gas and then expels intake waste gas to the outside through an exhaust duct. The wind tunnel and fan blades of a rang hood without grease filter will be covered with a layer of grease after a certain period of time in application. When the internal parts of a range hood are covered with a layer of grease, the fan speed will be affected, lowering the performance. Therefore, a range hood without grease filter must be regularly cleaned.
A range hood with grease filter has a grease filter covered on each waste gas inlet for collecting airborne grease from intake waste gas, keeping the internal wind tunnel in a clean status. The grease filter is affixed in place. When collected a certain amount of grease, the grease filter must be replaced, and the grille must be detached from the hood and cleaned. However, removing the grease filter from the hood for a replacement must be done manually. This grease filter replacement procedure is complicated. When removing the grease filter from the hood, the hands will be contaminated with grease.
SUMMARY OF THE INVENTIONThe primary purpose of the present invention is to provide a grease filter assembly that eliminates the aforesaid problems. It is the main object of the present invention to provide a grease filter assembly for range hood, which collects waste grease filter and supplies new grease filter automatically.
To achieve this and other objects of the present invention, the grease filter assembly comprises an air deflector, which has a filter supply chamber and a waste filter collecting chamber and provided with guide rollers grilles around the border area, a motor mounted on the air deflector, a sheet-transfer cylinder coupled to and rotatable by the motor, an impression cylinder perpendicularly pivoted to the air deflector in proximity to the sheet-transfer cylinder in a parallel manner, and a roll of grease filter mounted in the filter supply chamber for enabling one end of the grease filter thereof to be pulled out of the filter supply chamber and extended over the grilles and the guide rollers and retained between the sheet-transfer cylinder and the impression cylinder and then inserted into the waste filter collecting chamber. When the part of the grease filter that extends out of the filter supply chamber is covered with a certain amount of collected grease after a long use, the motor is started to rotate the sheet-transfer cylinder, causing the sheet-transfer cylinder and the impression cylinder to transfer the grease filter forwards, for enabling the waste part of the grease filter to be received in the waste filter collecting chamber.
The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
The following descriptions are of exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.
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A grease filter assembly for use in a range hood to remove airborne grease is disclosed to include an air deflector with guide rollers and grille, a roll of grease filter mounted in a filter supply chamber at the air deflector with one end of the grease filter extending out of the filter supply chamber over the grilles and the guide rollers into a waste filter collecting chamber, and a motor mounted in the air deflector and controllable to transfer the grease filter into the waste grease collecting chamber by means of a sheet-transfer cylinder and an impression cylinder.
It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.
While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.
Claims
1. A grease filter assembly for use in a range hood, comprising:
- an air deflector mountable in a range hood, said air deflector having a back side, a filter supply chamber and a waste filter collecting chamber arranged on a middle part of said back side, a plurality of guide rollers mounted on said back side at locations in a predetermined grease filter dispensing path, and a plurality of grilles perpendicularly arranged on said back side along the border area of said back side between each two adjacent guide rollers,
- a motor mounted on the back side of said air deflector near said waste filter collecting chamber;
- a sheet-transfer cylinder coupled to and rotatable by said motor;
- an impression cylinder perpendicularly pivoted to the back side of said air deflector in proximity to said sheet-transfer cylinder in a parallel manner for pressing a grease filer on said sheet-transfer cylinder for enabling the grease filter to be delivered forwards; and
- a roll of grease filter mounted in said filter supply chamber for enabling one end of the grease filter thereof to be pulled out of said filter supply chamber and extended over said grilles and said guide rollers and retained between said sheet-transfer cylinder and said impression cylinder and then inserted into said waste filter collecting chamber.
Type: Application
Filed: May 20, 2008
Publication Date: Nov 26, 2009
Inventor: CHIUNG-YAO TSAI (Panchiao City)
Application Number: 12/123,479
International Classification: F24C 15/20 (20060101);