Apparatus for drawing a conductor print pattern of defogging hea

Details Apparatus for drawing a conductor print pattern of defogging hea Apparatus for drawing a conductor print pattern of defogging hea

1989-12-14

1990-10-16

Evans, Arthur G.

Boots, shoes, and leggings

364900, G06F 1500

Patent

active

049640682

ABSTRACT:
An automated drawing apparatus is disclosed, in which a dot string along a model line of defogging heater wires on a two-dimensional developed view of a glass window of a motor vehicle is digitized to generate functions of two-dimensional free curves corresponding to the heater wires, a width of each conductor of the heater wires is calculated on the basis of input data consisting of a heater resistance, a conductor length, sizes of heating areas, and calorific values of the respective areas, and a basic line of the heater wire is offset by the conductor width to generate conductor contours. Print patterns of heater wires are drawn automatically which eliminates precise manual drafting.

REFERENCES:
patent: 4668270 (1987-05-01), Ramus
patent: 4800510 (1989-01-01), Vinberg et al.

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