Electricity: battery or capacitor charging or discharging – Cell or battery charger structure – Having plug for a-c receptacle
Patent
1997-10-20
1999-01-12
Tso, Edward
Electricity: battery or capacitor charging or discharging
Cell or battery charger structure
Having plug for a-c receptacle
320112, H01M 1046
Patent
active
058595236
ABSTRACT:
A rechargeable battery pack (10) for holding one or more batteries (19) and for connecting to an battery powered device (11). The battery pack batteries supplies electrical power to the peripheral device. The battery pack includes a case for holding at least one battery, a recharging circuit (57) connected to the at least one battery and disposed in the case and a plug (50) with prongs for electrically connecting the recharging circuit to an external source of electrical power. The plug rotates about a connection to the case from a first operational position having the plug mounted flush with the case and the prongs recessed in the case, to a second operational position with the prongs projecting from the case. The second and third operational positions of the plug are approximately orthogonal to the first operational position. The prongs are electrically connected to the recharging circuit in all operational positions. The battery pack also includes a discharging circuit (68) connected to the at least one battery and disposed within the case. A battery discharging arm (15) includes a discharging plug (61) and is rotatably connected to the case. The arm rotates from a first operating mode position having the arm rotated approximately flush with the case, to a second operating mode position with the arm projecting from the case. The first operating mode position of the arm enables the recharging circuit and disables the battery discharging circuit. The second operating mode position of the arm enables the battery discharging circuit and disable the recharging circuit.
REFERENCES:
patent: 3458794 (1969-07-01), Bohnstedt et al.
patent: 5057381 (1991-10-01), Persen
patent: 5220152 (1993-06-01), Doran
Jones David E.
Nierescher David S.
Raper Jeffrey I.
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