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US 6,205,807 B1Granted
Low cost ice making evaporator
OwnerJohn A. Broadbentinventor
Life of this patent
Estimating the term…
Abstract
An ice cube making evaporator design comprising an aluminum roll-bond evaporator plate (50) which is encased in a plastic grid (59) of vertical and horizontal ridges, thereby forming an array of freezing sites (28) on both sides of the plate. Plastic grids (59) are attached to each other using thermal staking, adhesives or welding so that the plate (50) is securely sandwiched between the two plastic grids (59).
Claims17
Apparatus for making ice comprising:
- a refrigeration system including at least one evaporator assembly;
- a water supply means for supplying water to the exterior surface of said evaporator assembly;
- said evaporator assembly having a roll-bond metal plate with one or more integral serpentine refrigerant passages therethrough and having a grid of material attached to said plate,
- said grid comprising a series of horizontal and vertical ridges which define said array of discrete freezing sites such that the water flowing over said freezing sites will form individual ice cubes at said freezing sites.
1 more element
Apparatus for making ice comprising:
- a refrigeration system including at least one evaporator assembly:
- a water supply means for supplying water to the exterior surface of said evaporator assembly;
- a water distribution tube disposed within said water supply means;
- said water distribution tube being located on top of said evaporator assembly and including a linear series of upward-facing orifices at the top of said water distribution tube for the purpose of directing water across said evaporator surface;
- and
- said water distribution tube having mounted above it a water deflecting device for preventing said orifices from spraying water anywhere but over the surface of said evaporator assembly.
3 more elements
A method for making ice which comprises:
- supplying water to an exterior surface of an evaporator assembly, said evaporator assembly having a roll-bond metal plate with one or more integral serpentine refrigerant passages therethrough and having a grid of material attached to said plate, said grid comprising a series of horizontal and vertical ridges which define an array of discrete freezing sites on said plate such that the water flowing over said freezing sites will form individual ice cubes at said freezing sites.
A method for making ice which comprises:
- supplying water to an exterior surface of an evaporator assembly through a water supply means, said water supply means including a water distribution tube within said water supply means, said water distribution tube being located on top of said evaporator assembly and including a linear series of upward-facing orifices at the top of said water distribution tube for the purpose of directing water across said evaporator assembly, said water supply means further including a water deflecting device mounted above said water distribution tube for preventing said orifices from spraying water anywhere but over the surface of said evaporator assembly.
Dependencies are inferred from the claim text.