Extraction Unit and Method for Ventilating a Cooking Surface

Abstract

An extraction unit for ventilating a cooking surface is provided that includes a retractable device permitting an extraction component of the extraction unit to be extended and retracted, a control unit comprising at least one actuating component, which is used to trigger the retractable device by a manual user entry, and a fan unit. The fan unit can also be controlled by the control unit, by means of the manual user entry for the actuating component. In addition, the actuating component can be configured as a rotary component, allowing at least one additional function of the extraction device to be controlled by the user by the rotation of the actuating component. The actuating component can also adopt a lowered position when the extraction unit is inactive and a position, in which it protrudes from the control unit, when the extraction unit is active.

1 - 11 . (canceled)  
     
     
         12 . An extraction unit for ventilating a cooking surface, comprising: 
 a fan unit for providing a motive force for effecting the evacuation movement of a fluid away from a cooking surface;    a retraction device having at least one extraction component of the extraction unit movable between an extended position in which the at least one extraction component of the extraction unit is positioned for receiving fluid being evacuated and a retracted position in which the at least one extraction component of the extraction unit is not positioned for receiving fluid being evacuated; and    a control device having at least one actuating component manipulable by a manual user input, the control device controlling an operation of the retraction device in response to a manipulation of the at least one actuating component via a manual user input, the fan unit being operatively connected to the control device such that the control device both controls an operation of the retraction device in response to a a given manipulation of the at least one actuating component via a manual user input and controls as well an operation of the fan unit in response to the same given manipulation of the at least one actuating component via the manual user input.    
     
     
         13 . The extraction unit according to  claim 12 , wherein the control device includes two microswitches that can be switched at the same time to reverse the polarity of at least one lifting motor of the retraction device.  
     
     
         14 . The extraction unit according to  claim 12 , wherein the at least one actuating component of the control device is a pressure switch.  
     
     
         15 . The extraction unit according to  claim 12 , wherein the at least one actuating component of the control device is configured as a rotary component so that at least one additional function of the extraction unit can be controlled by means of a rotation of the at least one actuating component of the control device by a user.  
     
     
         16 . The extraction unit according to  claim 15 , wherein extraction unit includes means for controlling power stages of the fan unit and the additional function is controlling the power stages of the fan unit.  
     
     
         17 . The extraction unit according to  claim 14 , wherein the pressure switch can occupy at least two positions with respect to the control device and wherein the pressure switch can be transferred by a pressure signal from one position to another position.  
     
     
         18 . The extraction unit according to  claim 17 , wherein the pressure switch is in a lowered position when the extraction unit is inactive and in a position in which in protrudes from the control unit when the extraction unit is active.  
     
     
         19 . The extraction unit according to  claim 12 , wherein the control device includes at least one rotary knob component that can be lowered.  
     
     
         20 . A method for ventilating a cooking surface, the method comprising: 
 providing a manual input by a user representative of a command;    extending at least one extraction component in response to the given command represented by a respective manual input; and    controlling an operation of at least one fan unit in response to the same given command represented by the respective manual input.    
     
     
         21 . The method according to  claim 20  and further comprising applying a pressure signal to an actuating component to input the command by the user.  
     
     
         22 . The method according to  claim 21  and further comprising controlling a further function relating to ventilation of a cooking surface in response to rotation of the actuating component by a user.