Patent ID: 8919700

Claim:
A de-icing device for an aircraft nacelle, comprising: at least two electric bands each made from at least one main conductor oriented substantially along a length of said band, wherein said at least two electric bands comprise rectilinear elements and bent elements, wherein said at least two electric bands located on a plane each comprise spirals formed by association of several bent elements, and said at least two electric bands are at least embedded by groups of three and two end bands of at least three embedded contiguous bands are made from at least two main conductors, and wherein said end bands are positioned so that at least half of their main conductors are outside a zone capable of undergoing impacts, wherein contiguous said at least two electric bands are embedded together at least in pairs, and each of said at least two electric bands embedded in pairs is powered by an independent power source, wherein when one of the independent power sources fails, a configuration of the associated electric band results in a non-heated zone that is non-linear such that a shape of ice aggregates formed in the non-heated zone is non-linear and the ice aggregates are isolated from each other.