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US 2008/0172880 A1Published application
Powered wet-shaving razor
AssigneeThe Gillette Company
InventorsDirk Freund, Uwe Schaaf, Gerrit Ronneberg, Martin Simeth, Fred Schnak, Torben Kruch
Life of this patent
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Abstract
A razor includes a load and a voltage conversion system coupled to a voltage source and the load for transforming a variable voltage provided by the voltage source into a constant operating voltage for driving a load.
Claims22
An apparatus comprising:
- a load;
- and
- a voltage conversion system coupled to the load and to a voltage source, the voltage conversion system configured to transform a variable voltage provided by the voltage source into a constant operating voltage for driving the load.
An apparatus comprising:
- a handle having a distal tip;
- a motor configured to vibrate the distal tip;
- a force-sensing circuit configured to generate a force signal indicative of a shaving force exerted on the distal tip.
An apparatus comprising:
- a load;
- and
- means for controlling a voltage provided by a variable voltage source, the means for controlling a voltage being coupled to the load and to the variable voltage source.
Dependencies are inferred from the claim text.