Battery warmer

Details Battery warmer Battery warmer

2001-04-05

2003-06-10

Bennett, Henry (Department: 3743)

Stoves and furnaces

Heaters

Chemical

C126S204000, C429S120000

Reexamination Certificate

active

06575156

ABSTRACT:

BACKGROUND
1. Technical Field
This invention relates generally to personal electronic devices, and more specifically, to an apparatus for warming a battery for a personal electronic device.
2. Background Art
Personal electronic devices are widely used in today's information age. Cellular telephones, two-way radios, pagers, personal data assistants, calculators, and voice recorders/players, are only some of the devices commonly used by people to stay organized and informed. Many individuals carry such devices wherever they go, outdoors as well as indoors.
Batteries for these devices tend to be temperature sensitive and may experience a shortened life span or may completely fail when exposed to cold temperatures due to the limits of current cell chemistry technology. Some users of personal electronic devices desire to use such devices in severe cold weather (e.g., while doing research in Antarctica) where sub-zero temperatures are common. However, most current lithium-ion batteries have a near zero charge time when exposed to sub-zero temperatures. Therefore, there is a need for an apparatus which keeps batteries warm in cold conditions.


REFERENCES:
patent: 2615933 (1952-10-01), Carlson et al.
patent: 3156813 (1964-11-01), Trainor
patent: 3301250 (1967-01-01), Glasser
patent: 3762393 (1973-10-01), O'Hare
patent: 3893834 (1975-07-01), Armstrong
patent: 4095938 (1978-06-01), Mikaila
patent: 4605006 (1986-08-01), Jacques
patent: 5230333 (1993-07-01), Yates et al.
patent: 5429115 (1995-07-01), Tan et al.
patent: 5834131 (1998-11-01), Lutz et al.
patent: 6168613 (2001-01-01), Besse
patent: 5-176951 (1993-07-01), None
patent: 11-354167 (1999-12-01), None

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