An ice piece making assembly and a refrigeration appliance containing the ice piece making assembly is disclosed. The ice making assembly produces ice pieces by directional freezing and includes: an ice piece forming tray having a motor engaging end, a distal end, a first side, a second side and a bottom surface, a plurality of ice piece making compartments divided by divider walls, and a plurality of heat sinks engaged to the bottom surface of the ice making compartments and deliver defrost water to a drain or defrost water catch tray positioned at at least one of the distal end and the motor engaging end; and an ice piece forming tray canopy spaced a distance above the ice piece forming tray wherein the ice piece forming tray canopy comprises a heater and a temperature sensor.

An ice piece making assembly and a refrigeration appliance containing the ice piece making assembly is disclosed. The ice making assembly produces ice pieces by directional freezing and includes: an ice piece forming tray having a motor engaging end, a distal end, a first side, a second side and a bottom surface, a plurality of ice piece making compartments divided by divider walls, and a plurality of heat sinks engaged to the bottom surface of the ice making compartments and deliver defrost water to a drain or defrost water catch tray positioned at at least one of the distal end and the motor engaging end; and an ice piece forming tray canopy spaced a distance above the ice piece forming tray wherein the ice piece forming tray canopy comprises a heater and a temperature sensor.

An ice-making apparatus for an appliance having a housing with an interior volume and an ice tray horizontally suspended in the interior volume. The ice tray has a cold plate with a top surface and a bottom surface and a containment wall surrounding an edge portion of the cold plate to retain water. A cooling source is thermally coupled to the bottom surface of the cold plate. An intake conduit extends into the interior volume over the ice tray and is configured to draw ambient air into the interior volume over the ice tray, and the ambient air is above freezing.

An ice-making apparatus for an appliance having a housing with an interior volume and an ice tray horizontally suspended in the interior volume. The ice tray has a cold plate with a top surface and a bottom surface and a containment wall surrounding an edge portion of the cold plate to retain water. A cooling source is thermally coupled to the bottom surface of the cold plate. An intake conduit extends into the interior volume over the ice tray and is configured to draw ambient air into the interior volume over the ice tray, and the ambient air is above freezing.

The present invention is a clear ice cube maker that makes clear ice cubes with zero cloudiness in their center. One embodiment of the present invention makes clear ice cubes through a combination of the proper freezing temperature, the direction of freezing water in an ice cube mold, and the proper vibration frequency applied to water. It discloses what constitutes the proper vibration frequency for each water mass in each mold to simultaneously make multiple clear ice cubes with zero cloudiness in their center, and it discloses how to calibrate and simultaneously properly apply the proper frequency to the water in each ice cube mold cavity.

The present invention is a clear ice cube maker that makes clear ice cubes with zero cloudiness in their center. One embodiment of the present invention makes clear ice cubes through a combination of the proper freezing temperature, the direction of freezing water in an ice cube mold, and the proper vibration frequency applied to water. It discloses what constitutes the proper vibration frequency for each water mass in each mold to simultaneously make multiple clear ice cubes with zero cloudiness in their center, and it discloses how to calibrate and simultaneously properly apply the proper frequency to the water in each ice cube mold cavity.

A method for preparing clear ice includes supporting an ice tray via a rotating assembly within a housing and separating an interior volume of the housing into a first air chamber and a second air chamber. The first air chamber is below the ice tray and the second air chamber is above the ice tray. Water is supplied into the ice tray and the ice tray is cooled with a cooling device thermally coupled to a bottom surface of the ice forming plate. The cooling device is exposed to chilled air from within the appliance in the first air chamber. Ambient air is supplied from outside the appliance into the second air chamber within the interior volume of the housing. The surface of the water in the ice tray is exposed to the ambient air.

A method for preparing clear ice includes supporting an ice tray via a rotating assembly within a housing and separating an interior volume of the housing into a first air chamber and a second air chamber. The first air chamber is below the ice tray and the second air chamber is above the ice tray. Water is supplied into the ice tray and the ice tray is cooled with a cooling device thermally coupled to a bottom surface of the ice forming plate. The cooling device is exposed to chilled air from within the appliance in the first air chamber. Ambient air is supplied from outside the appliance into the second air chamber within the interior volume of the housing. The surface of the water in the ice tray is exposed to the ambient air.

An ice cube maker having modules to mass produce high quality transparent ice cubes comprising an agitation system and a refrigeration system utilizing at least substantially one directional freezing of the water through a wall of an ice mold to make an ice cube having a center that is void of visible crystallization and void of a visible bubble with no visible cracking therein.

An ice cube maker having modules to mass produce high quality transparent ice cubes comprising an agitation system and a refrigeration system utilizing at least substantially one directional freezing of the water through a wall of an ice mold to make an ice cube having a center that is void of visible crystallization and void of a visible bubble with no visible cracking therein.