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US 7,609,513 B2Granted
Portable electronic device
AssigneeChi Mei Communication Systems, Inc.
InventorCheng-Lung Chang
Life of this patent
Estimating the term…
Abstract
A portable electronic device includes a cover (10), a container (20) and a heater (40). The container is provided on the cover. The heater includes some exothermic materials. The heater is received in the container.
Claims18
A portable electronic device, comprising:
- a cover;
- a container provided on the cover, a trough defined in an outer surface of the cover, a hatch defined in a base of the trough;
- and
- a heater including exothermic materials, the heater being received in the container.
1 more element
A portable electronic device, comprising:
- a cover;
- a container provided on the cover, a trough being defined in an outer surface of the cover, and a hatch being defined in a base of the trough, a size of the container corresponding to a size of the cover, and the container including a containing portion of a size corresponding with the size of the hatch;
- and
- a heater including exothermic materials including a predetermined proportion of reactive metal powder, activated carbon, vermiculite, and metallic salt;
- the heater being received in the container.
2 more elements
Dependencies are inferred from the claim text.