Aerosol delivery device/system

Abstract

The present disclosure relates to an aerosol delivery system e.g. a smoking substitute system. In particular, it relates to an aerosol generating system comprising a vaporiser, an air flow sensor configured to detect a user inhalation through the system, and a controller, wherein the controller is configured to activate the vaporiser only when the duration of the user inhalation exceeds a predefined duration threshold.

1 . An aerosol generating system comprising a vaporiser, an air flow sensor configured to detect a user inhalation through the system, and a controller, wherein the controller is configured to activate the vaporiser only when the duration of the user inhalation exceeds a predefined duration threshold. 
     
     
         2 . An aerosol generating system according to  claim 1  further comprising a clock or timer configured for measuring the duration of the user inhalation. 
     
     
         3 . An aerosol generating system according to  claim 1  wherein the predefined duration threshold that the user inhalation must meet or exceed is greater than or equal to 2 seconds. 
     
     
         4 . An aerosol generating system according to  claim 1  further configured only to activate the vaporiser when a detected further user inhalation parameter exceeds a predefined further inhalation parameter threshold. 
     
     
         5 . An aerosol generating system according to  claim 4  wherein further user inhalation parameter is selected from one or more of: a pressure force of the user inhalation; a pressure differential/drop of the user inhalation; and a mass flow volume of the user inhalation. 
     
     
         6 . An aerosol generating system according to  claim 1  wherein the user inhalation is a first user inhalation detected by the air flow sensor and the controller is configured to activate the vaporiser only when the duration of a first user inhalation exceeds the predefined duration threshold. 
     
     
         7 . An aerosol generating system according to  claim 1  comprising a device for receiving a component for containing an aerosol precursor. 
     
     
         8 . An aerosol generating system according to  claim 7  further comprising the component for containing an aerosol precursor. 
     
     
         9 - 13 . (canceled) 
     
     
         14 . An aerosol generating system according to  claim 2  wherein the predefined duration threshold that the user inhalation must meet or exceed is greater than or equal to 2 seconds. 
     
     
         15 . An aerosol generating system according to  claim 2  further configured only to activate the vaporiser when a detected further user inhalation parameter exceeds a predefined further inhalation parameter threshold. 
     
     
         16 . An aerosol generating system according to  claim 3  further configured only to activate the vaporiser when a detected further user inhalation parameter exceeds a predefined further inhalation parameter threshold. 
     
     
         17 . An aerosol generating system according to  claim 14  further configured only to activate the vaporiser when a detected further user inhalation parameter exceeds a predefined further inhalation parameter threshold 
     
     
         18 . An aerosol generating system according to  claim 15  wherein further user inhalation parameter is selected from one or more of: a pressure force of the user inhalation; a pressure differential/drop of the user inhalation; and a mass flow volume of the user inhalation. 
     
     
         19 . An aerosol generating system according to  claim 16  wherein further user inhalation parameter is selected from one or more of: a pressure force of the user inhalation; a pressure differential/drop of the user inhalation; and a mass flow volume of the user inhalation. 
     
     
         20 . An aerosol generating system according to  claim 17  wherein further user inhalation parameter is selected from one or more of: a pressure force of the user inhalation; a pressure differential/drop of the user inhalation; and a mass flow volume of the user inhalation. 
     
     
         21 . An aerosol generating system according to  claim 2  wherein the user inhalation is a first user inhalation detected by the air flow sensor and the controller is configured to activate the vaporiser only when the duration of a first user inhalation exceeds the predefined duration threshold. 
     
     
         22 . An aerosol generating system according to  claim 3  wherein the user inhalation is a first user inhalation detected by the air flow sensor and the controller is configured to activate the vaporiser only when the duration of a first user inhalation exceeds the predefined duration threshold. 
     
     
         23 . An aerosol generating system according to  claim 14  wherein the user inhalation is a first user inhalation detected by the air flow sensor and the controller is configured to activate the vaporiser only when the duration of a first user inhalation exceeds the predefined duration threshold. 
     
     
         24 . An aerosol generating system according to  claim 4  wherein the user inhalation is a first user inhalation detected by the air flow sensor and the controller is configured to activate the vaporiser only when the duration of a first user inhalation exceeds the predefined duration threshold. 
     
     
         25 . An aerosol generating system according to  claim 15  wherein the user inhalation is a first user inhalation detected by the air flow sensor and the controller is configured to activate the vaporiser only when the duration of a first user inhalation exceeds the predefined duration threshold.