US Patent 10369589 Nozzle adapter

A nozzle adapter for a caulking tube nozzle. Such a nozzle adapter includes a shoulder portion which has a hole into which a tapered nozzle of the caulking tube is inserted, a header portion which is protruded on the shoulder portion and configured to engage with an external nozzle which the user may select depending on a working environment; and a clutch plate which is provided under the shoulder portion and configured to engage with the tapered nozzle and fix the hole of the shoulder portion at the tapered nozzle. The header portion, the shoulder portion and the clutch plate forms an internal passageway through which the tapered nozzle is inserted and a caulking material flow from the tapered nozzle of the caulk tube to the external nozzle. Accordingly, the nozzle adapter is attached to a tapered nozzle of caulking tube or gun, and enables the user to select various taper dimensions or angles of external nozzles by engaging the external nozzle with the nozzle adapter which is attached to the caulking tube nozzle.