Refrigeration – Automatic control – By congealed removable product condition
Patent
1994-12-28
1996-03-26
Tapolcai, William E.
Refrigeration
Automatic control
By congealed removable product condition
62354, F25C 114
Patent
active
055010814
ABSTRACT:
An auger type ice making machine having an upright evaporator housing the interior of which is formed with a cylindrical freezing surface, an auger mounted for rotary movement within the evaporator housing and drivingly connected at its lower end with an electric motor to scrape ice crystals off the freezing surface and to advance the scraped ice crystals toward an upper end of the evaporator housing, an extrusion head fixed in place within the upper end portion of the evaporator housing to compress the scraped ice crystals advanced thereto by rotation of the auger and extrude the compressed ice crystals upwardly, a drain pipe provided with an electrically operated drain valve and connected to a lower end portion of the evaporator housing to discharge supplied water from the evaporator housing when the drain valve is opened by its energization and an electric heater mounted on an outer periphery of the evaporator housing at a place corresponding with the extrusion head, wherein the electric heater is energized when applied with a halt signal of ice making operation and deenergized after lapse of a predetermined time, and the drain valve is energized after or before the electric heater has been deenergized.
REFERENCES:
patent: 4982573 (1991-01-01), Tatematsu et al.
patent: 4986081 (1991-01-01), Hida et al.
patent: 5440892 (1995-08-01), Tatematsu et al.
Mori Kazuhiro
Tatematsu Susumu
Uchida Naoya
Hoshizaki Denki Kabushiki Kaisha
Tapolcai William E.
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