C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/48 (2006.01) C04B 35/50 (2006.01) C04B 35/64 (2006.01) C04B 38/06 (2006.01) F21H 1/02 (2006.01) F21H 3/00 (2006.01)
Patent
CA 2047227
ABSTRACT OF THE DISCLOSURE An improved incandescent mantle which is stronger than mantles produced in the past as well as free of radioactive materials. The present invention provides a mantle comprised of zirconia, yttria and erbia, which produces a resulting light output and color comparable for practical purposes to that of traditional thorium mantles. Although the invention is particularly adapted to mantles of inverted form, it is also applicable to other forms.
Edgar John P.
Malcolm Johnston & Associates
LandOfFree
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