US Patent 9801412 Smoking article with dual function cap

A smoking article is formed from two component parts. These parts are a rod comprising an aerosol-forming substrate and a removable cap. The removable cap can be coupled to the rod in two configurations. In a first configuration, the removable cap is coupled to a first end of the rod and a heat source located at or near a second end of the rod heats the aerosol-forming substrate to generate an inhalable aerosol. In a second configuration, the removable cap is coupled to the second end of the rod and at least substantially covers the heat source. The smoking article is arranged in the second configuration for disposal.