Getter activation under vacuum
AssigneeWhirlpool Corporation
InventorsGustavo Frattini, Ashish Nigam
Life of this patent
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Abstract
A vacuum insulated compartment includes an outer wrapper and an inner liner that is sealed to the outer wrapper. A cavity is defined therebetween. The cavity includes a negative pressure. An insulation material is disposed in the cavity. A getter assembly is disposed in the cavity and includes a primary getter material that is deposited on a plate. A cover layer is deposited over the primary getter material on the plate. A vessel is nested within the primary getter material. A secondary getter material is disposed within the vessel. A protective enclosure is disposed around the getter assembly.
Claims18
A vacuum insulated compartment comprising:
- an outer wrapper;
- an inner liner sealed to the outer wrapper and defining a cavity therebetween, wherein the cavity includes a negative pressure;
- an insulation material disposed in the cavity;
- and
- a getter assembly disposed in the cavity, the getter assembly comprising:
- a primary getter material deposited on a plate;
- a cover layer deposited over the primary getter material on the plate;
- a vessel nested within the primary getter material, wherein a secondary getter material is disposed within the vessel;
- and
- a protective enclosure disposed around the getter assembly.
A vacuum insulated refrigerator comprising:
- an inner liner sealed to an outer wrapper and defining a cavity therebetween under vacuum;
- a primary getter material deposited within a getter container;
- a secondary getter material;
- a tertiary getter material disposed within the getter container, wherein the secondary getter material covers the tertiary getter material;
- and
- a cover layer deposited over the primary getter material within the container, wherein the primary getter material is partially nested within the cover layer.
A refrigerator comprising:
- a cabinet defining a vacuum sealed cavity;
- and
- a getter assembly disposed in the cavity, the getter assembly including:
- a first getter material;
- a cover layer deposited over the first getter material;
- and
- a vessel including a second getter material, wherein the second getter material is at least partially nested within the first getter material.
Dependencies are inferred from the claim text.