Patent ID: 7952239

Claim:
A bimetallic strip having only two layers, said bimetallic strip comprising: a first substantially flat layer comprising a positive magnetostrictive material; and a second substantially flat layer attached to the first substantially flat layer forming a dual layered strip, said second substantially flat layer comprising a flexible material, wherein the first substantially flat layer comprises one of, an alloy of Fe and Al, wherein the alloy of Fe and Al comprises Fe 100-x Al x wherein x is from about 5 to about 25, an alloy of Fe and Ga, wherein the alloy of Fe and Ga comprises Fe 100-y Ga y wherein y is from about 5 to about 35, and an alloy that is a combination of Fe 100-x Al x wherein x is from about 5 to about 25, and Fe 100-y Ga y wherein y is from about 5 to about 35, and wherein the flexible material of said second substantially flat layer comprises a negative magnetostrictive material or a permanent magnet.