Patent ID: 8177887

Claim:
An aerosol particle collector, comprising a duct having an elongated inlet extending along a length of the duct through which aerosol may enter the duct and an outlet located at one end of the length of the duct through which aerosol may exit the duct, the duct defining a flow path therethrough from the inlet toward the outlet and the flow path configured to: remove larger particles from aerosol flowing through the duct and store the removed particles in the duct; and maintain a uniform rate of aerosol flow through the duct throughout a predetermined useful life of the duct even as stored aerosol particles accumulate in the duct; and wherein the flow path includes an opening extending along the length of the duct, the opening configured to restrict the flow of aerosol from the inlet to the outlet and to maintain a uniform rate of flow of aerosol through the opening along the length of the duct.