Rechargeable battery pack

Details Rechargeable battery pack Rechargeable battery pack

1997-11-04

1999-09-07

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Cell or battery charger structure

320113, 320108, 320112, H02J 700

Patent

active

059492147

ABSTRACT:
A battery charging apparatus and method permits the recharging of the batteries of a seismic streamer depth control device or bird without access to the interior of the bird. In a preferred embodiment, a battery pack includes a coil within the bird that is capable of receiving a charging field from a charging unit by inductive coupling. The coil provides power to a regulated power supply comprising a voltage regulator and rectifier, and direct current is provided to charge battery cells. Thus, the batteries within the bird a charged by induction from outside the casing of the bird. Alternatively, the battery pack may be detached from the rest of the bird, but the battery pack remains scaled against the elements. The battery pack may include an electrical connector which attaches to the main body of the bird, and the electrical connector includes one or more pins for charging purposes. When the battery pack is detached from the main body of the bird and placed in a storage rack, the electrical connector of the battery pack mates with an outlet and the battery pack is charged through the regulated power supply.

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patent: 5367242 (1994-11-01), Hulman
patent: 5525888 (1996-06-01), Toya
patent: 5532975 (1996-07-01), Elholm
patent: 5550452 (1996-08-01), Shirai et al.
patent: 5600225 (1997-02-01), Goto

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