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US 7,732,737 B2Granted
Micro powered warming container
AssigneeKimberly-Clark Worldwide, Inc.
InventorsJeffrey D. Lindsay, Fung-Jou Chen, Sheng-Hsin Hu, Walter Reade
Life of this patent
Estimating the term…
Abstract
A warming dispenser includes a housing having a compartment. The compartment holds a plurality of sheets. A heating device is located adjacent the plurality of sheets. A micro power source is connected to the heating device to generate energy from a fuel source, wherein the heating device uses the energy to warm at least one of the sheets. The micropower source may be, for example, a micro fuel cell adapted to deliver electricity for resistive heating.
Claims27
A warming dispenser, comprising:
- a housing defining a compartment therein, the compartment being configured to hold a plurality of sheets;
- a heating device disposed on and in direct contact with and movable with respect to at least the uppermost of the plurality of sheets;
- a micro power source comprising a micro-fuel cell having a fuel cartridge and a combustion chamber, the fuel cartridge being configured to hold a supply of fuel, the combustion chamber being configured to receive and combust the fuel to generate energy;
- and
- a controller in communication with the micro power source, the controller being configured to repeatedly activate and deactivate the micro power source, the heating device being configured to deliver the energy for warming at least one of the sheets.
2 more elements
A warming dispenser, comprising:
- a housing defining a compartment therein, the compartment being configured to hold a plurality of sheets;
- a heating plate disposed on and in direct contact with and movable with respect to at least the uppermost of the plurality of sheets;
- a micro power source comprising a micro-fuel cell that has a fuel cartridge and a combustion chamber, the fuel cartridge being configured to hold a supply of fuel, the combustion chamber being configured to receive and combust the fuel to generate energy in communication with the heating plate;
- and
- a controller in communication with the micro power source, the controller being configured to repeatedly activate and deactivate the micro power source, the heating plate having a plurality of resistor elements therein being configured to convert the energy to heat for warming at least one of the sheets, the heating plate being configured for removal from the compartment to access the at least one heated sheet.
2 more elements
Dependencies are inferred from the claim text.