Electrically heated transparency with multiple parallel and loop

Details Electrically heated transparency with multiple parallel and loop Electrically heated transparency with multiple parallel and loop

1996-06-13

1998-10-20

Jeffrey, John A.

Electric heating

Heating devices

Combined with diverse-type art device

219541, H05B 384

Patent

active

058249940

ABSTRACT:
An electrically heated transparency which has a glass plate, a pair of bus bars provided at upper and lower sides of the glass plate and a transparent electric conductive film disposed on a surface of the glass plate so as to connect the pair of bus bars. The upper side bus bar has two upper bus bar elements. The upper bus bar elements are respectively extended to current feeding portions and have free ends at opposite positions in an upper side portion of the glass plate and near both sides of the transparent electric conductive film. The upper bus bar elements have parallel portions, in a connecting portion for connecting the upper side bus bar to the transparent electric conductive film, so as to oppose to each other with a space, and the upper bus bar elements are in contact with the transparent electric conductive film at the parallel portions.

REFERENCES:
patent: 3864545 (1975-02-01), Schafer et al.
patent: 4940884 (1990-07-01), Gillery
patent: 5208444 (1993-05-01), Winter et al.
patent: 5653903 (1997-08-01), Pinchok, Jr. et al.

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