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US 8,895,897 B2Granted
Heatable glazing
AssigneePilkington Group Limited
InventorsJonathan Barclay Dixon, Mark Andrew Chamberlain
Life of this patent
Estimating the term…
Abstract
A heatable glazing is disclosed in which electrical heating elements such as fine wires are connected to a busbar. The resistance of the busbar is chosen such that, at the supply voltage of the installation, the busbar provides heating of a portion of the glazing in which it is located.
Claims15
A heatable glazing comprising,
- a pane of glazing material;
- at least one high resistance busbar disposed on the pane;
- at least one further busbar;
- the high resistance busbar and the further busbar being independently electrically connectable to a resistive heating element for heating the glazing;
- and
- the high resistance busbar having a predetermined resistance per unit length of between 0.25 and 0.04 Ω/m.
3 more elements
A heatable glazing comprising,
- a pane of glazing material;
- at least one relatively higher resistance busbar disposed on the pane;
- at least one relatively lower resistance busbar disposed on the pane and spaced apart from the relatively higher resistance busbar;
- and
- the relatively higher resistance busbar having a relatively higher resistance than the relatively lower resistance busbar.
2 more elements
Dependencies are inferred from the claim text.