Patent ID: 6892554

Claim:
Device to produce ice-cream applied to ice-cream producing machines of a domestic or semi-professional type which cooperates with a refrigeration unit, the device comprising an outer container ( 11 ), a cover ( 26 ), an inner container ( 14 ) including an axial tube ( 18 ), a mixing blade ( 20 ) including a scraper fin ( 120 ), an evaporator coil ( 21 ) to remove heat from the inner container ( 14 ) and, through this, from the material present therein, the mixing blade ( 20 ) being associated at the upper part, in axially removable manner, with a drive shaft ( 19 ) driven in rotation by drive means and inserted into said axial tube ( 18 ), wherein the evaporator coil ( 21 ) is located in cooperation with the bottom ( 17 ) of the inner container ( 14 ), through at least a contact surface ( 27 ), at least said scraper fin ( 120 ) being made of an elastic material, and said mixing blade ( 20 ) being arranged to axially cooperate directly with said cover ( 26 ) through a seating ( 34 ) in order to be thrust axially by said cover ( 26 ) against the bottom ( 17 ) of said inner container ( 14 ) such that at least said scraper fin ( 120 ) is elastically compressed to at least partially conform to the shape of the bottom ( 17 ).