Chemistry: electrical current producing apparatus – product – and – Having polarity safety feature
Patent
1997-02-18
1998-10-27
Kalafut, Stephen
Chemistry: electrical current producing apparatus, product, and
Having polarity safety feature
429100, H01M 210
Patent
active
058276190
ABSTRACT:
A battery holder incorporated in an electrical device is provided which includes a housing for holding a battery which supplies a voltage to electrical circuits of the device. The battery holder contains positive and negative side contacts fixed to the housing for connecting positive and negative electrodes of the battery to supply a voltage to electrical loads. The positive side contact includes a back plate fixed to the housing, a conductive contact plate for contacting the positive electrode of the battery, the contact plate forming a U-shaped or V-shaped spring together with the back plate, and at least two protective plates of an insulation material arranged along the outer periphery of the contact plate and protruding from it. The distance between the protective plate is defined to be larger than the diameter of the positive electrode of the battery and smaller than the diameter of the battery itself. The negative side contact is formed with a coil to have a resilient force in the longitudinal direction of the housing.
REFERENCES:
patent: 4414298 (1983-11-01), Krenz
patent: 5116699 (1992-05-01), Miyajima
patent: 5194340 (1993-03-01), Kosako
patent: 5229220 (1993-07-01), Stanton et al.
Kalafut Stephen
Leader Electronics Corp.
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