US Patent 10159262 Frosty swirl machine

A frosty swirl machine includes a housing, a funnel, an auger for swirling ice-cream with other additives to become a mixture, and a protective cap. The protective cap has a passage opening movably mounted at a mixture outlet of the funnel, in such a manner that the protective cap is capable of moving between a opened position and a closed position, wherein in the opened position, the protective cap is moved to align the passage opening with the mixture outlet of the funnel so as to allow the mixture to pour out of the funnel through the mixture outlet and the passage opening, wherein in the closed position, the protective cap is moved to block the mixture outlet so as to prevent the mixture from being poured out of the funnel.