초록 ▼

A lightweight flexible electrical heating device for melting snow and ice that may be cut in the field to custom length. The device includes a planar flexible electric heater sandwiched between two vulcanized polymer protective sheets. The heater include an array of resistive heating elements electr

A lightweight flexible electrical heating device for melting snow and ice that may be cut in the field to custom length. The device includes a planar flexible electric heater sandwiched between two vulcanized polymer protective sheets. The heater include an array of resistive heating elements electrically connected in parallel and oriented substantially across the device length, allowing the heater to be cut to any length as needed. Potentially the outside surfaces is equipped with a ribbed non skid pattern that form an array of ribs and channels to increase traction and aid in water drainage.

대표청구항 ▼

[ What is claimed is:] [1.] A heating device for melting snow and ice comprising:a planar flexible electric heater including a plurality of resistive heating elements connected electrically in parallel and having two opposite planar surfaces; andat least two protective sheets composed of abrasion re

[ What is claimed is:] [1.] A heating device for melting snow and ice comprising:a planar flexible electric heater including a plurality of resistive heating elements connected electrically in parallel and having two opposite planar surfaces; andat least two protective sheets composed of abrasion resistant flexible material, each having an inner surface oriented towards and in face to face adherent engagement with a respective planar surface of the plurality of resistive heating elements, said two protective sheets and electric heater disposed therebetween forming a heater assembly having two opposing end edges, and two opposing side edges and wherein the resistive heating elements run entirely perpendicular to electrical conductors that are parallel to the side edges, and both are electrically interconnected such that a portion of the heating device may be removed to accommodate a use by cutting the heating device between selected individual resistance heating elements, the heating device being adapted to maintain its electrical operative characteristics.