초록 ▼

A freezing barrel with mixing and refrigerating apparatus associated therewith has an inlet at one end to receive a prepared mix to be frozen and has a spigot at the other end for dispensing the ice cream. The prepared ice cream mix is supplied from a reservoir having a float controlled uniform rate

A freezing barrel with mixing and refrigerating apparatus associated therewith has an inlet at one end to receive a prepared mix to be frozen and has a spigot at the other end for dispensing the ice cream. The prepared ice cream mix is supplied from a reservoir having a float controlled uniform rate of flow to the freezing barrel in each operation. The float is supported on a hollow open ended stem slidable in an upright tubular support and an opening is provided in the stem for gravity constant pressure flow of the mix thereinto as ice cream is drawn off through the spigot. Flow through the opening is controlled by a novel valve such that the rate of such flow is equal to or slightly more than the freezing and mixing capacity of the freezing barrel. The upper end of the stem is open to atmosphere through the valve to admit air into the mix.

대표청구항 ▼

An ice cream machine for making and dispensing soft ice cream comprising. a. a freezing barrel having an outlet valve, b. means in said freezing barrel for mixing ice cream at a selected capacity, c. refrigerating means associated with said freezing barrel for cooling said barrel at a selected capac

An ice cream machine for making and dispensing soft ice cream comprising. a. a freezing barrel having an outlet valve, b. means in said freezing barrel for mixing ice cream at a selected capacity, c. refrigerating means associated with said freezing barrel for cooling said barrel at a selected capacity, d. a reservoir for ice cream mix, e. upright tubular means establishing communication between said reservoir and a lower portion of said freezing barrel, f. float means in said reservoir having buoyant support on the mix in said reservoir to follow the level of mix in the latter, g. a hollow open-ended depending stem integral with said float projecting down through said reservoir and therebelow into sliding engagement in said upright tubular means, h. and means defining an opening in said stem for admitting ice cream mix to the stem for gravity flow into said tubular means and said freezing chamber as ice cream is drawn off through said outlet valve, i. said opening being disposed in said stem below the level of mix in the reservoir and maintained at a constant height relative to the surface of the mix whereby a constant head pressure is maintained in said tubular means to said freezing barrel, j. said opening being of a selected size such that the rate of flow therethrough is approximately equal to or slightly greater than the freezing and mixing capacity of said freezing barrel, k. the open upper end of said stem being open to atmosphere to admit air into said mix. l. an adjustable valve means which includes an open ended hollow tube mounted within said stem maintaining the upper end of said stem open to the atmosphere.