Rechargeable battery pack for mobile telephones

Details Rechargeable battery pack for mobile telephones Rechargeable battery pack for mobile telephones

1995-08-08

1997-12-02

Gorgos, Kathryn L.

Chemistry: electrical current producing apparatus, product, and

Cell support for removable cell

Having switch or interlock means

429 99, 429121, 429123, 429 7, H01M 210

Patent

active

056934319

ABSTRACT:
A battery pack (20) holds one or more batteries (118) and connects to a mobile telephone (115). The battery pack includes a case (22) for holding the batteries, a recharging circuit (122) disposed in the case, a plug (86) rotatably connected to the case and electrically connected to the recharging circuit, and electrical terminals 46 mounted to the case. The plug includes a pair of generally parallel, spaced prongs (88). The plug rotates from a first position, having the prongs projecting from the case, to a second position having the prongs retracted into the case. Electrical leads (47) extend from each of the electrical terminals to battery terminals. A pair of contacts (110) and (112) spaced from another, interrupts each of the electrical leads. When the prongs retract, each electrical contact of a contact pair electrically connects to one another through a prong. When the prongs extend, the electrical contacts are disconnected from one another.

REFERENCES:
patent: 4904549 (1990-02-01), Goodwin et al.
patent: 4922178 (1990-05-01), Matsuszewski
patent: 5449567 (1995-09-01), Yeh
patent: 5459389 (1995-10-01), Fujiwara et al.

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