IP Library Granted Patent US 7,521,820
Granted Patent B2
US 7,521,820 · App. 11/456,959 · Granted Apr 21, 2009

Electrical apparatus system

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Quick Facts
Patent No.
US 7,521,820
App. No.
11/456,959
Granted
Apr 21, 2009
Kind
B2
Abstract

An electrical apparatus system includes a depilator (first electrical apparatus) that depilates body hair, a cleaning apparatus (second electrical apparatus) that cleans the depilatory and an AC adapter that supplies DC electric power to the depilator or the cleaning apparatus. Electric power can be supplied between both the electrical apparatuses by bringing a back surface terminal provided in the depilator and a connection terminal provided in the cleaning apparatus into contact with each other.

Claims (6)

1. An electrical apparatus system comprising a power generator that produces a desired output electric power from an input electric power from an external power supply, a first electrical apparatus having a first load to which electric power is supplied from the power generator, and a second electrical apparatus having a second load to which electric power is supplied from the power generator, the second electrical apparatus being used in combination with the first electrical apparatus, wherein

the first electrical apparatus includes a first electric power transmitting unit configured to supply the electric power produced by the power generator to the second electrical apparatus and to supply the electric power supplied from the second electrical apparatus to the first load, the second electrical apparatus including a second electric power transmitting unit configured to supply electric power produced by the power generator to the first electrical apparatus and to supply electric power supplied from the first electrical apparatus to the second load.

2. The electrical apparatus system of claim 1 , wherein the first electrical apparatus includes a secondary battery that supplies electric power to the first load, and a charging unit that charges the secondary battery by the electric power produced by the power generator.

3. The electrical apparatus system of claim 2 , wherein the first electric power transmitting unit is configured to supply electric power to the second load by the secondary battery.

4. The electrical apparatus system of claim 3 , wherein the first electrical apparatus includes a constant-voltage circuit that stabilizes battery voltage of the secondary battery to a predetermined constant value.

5. The electrical apparatus system of claim 4 , wherein the first electrical apparatus includes a constant-voltage circuit control unit that performs control such that the constant-voltage circuit is stopped when a predetermined operation time is elapsed after a time when the constant-voltage circuit starts an operation.

Assignments (2)
CHANGE OF NAME Recorded Jan 28, 2009
From: MATSUSHITA ELECTRIC WORKS, LTD.
To: PANASONIC ELECTRIC WORKS CO., LTD.
Reel/Frame 022206/0574 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 12, 2006
From: KITAMURA, HIROYASU
To: MATSUSHITA ELECTRIC WORKS, LTD.,
Reel/Frame 017919/0300 →