C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 24/24 (2006.01) C04B 7/32 (2006.01) C08K 3/22 (2006.01) C08K 3/34 (2006.01) H01B 3/00 (2006.01) H01H 31/00 (2006.01) H01H 85/18 (2006.01) H01H 85/42 (2006.01)
Patent
CA 2004969
A spider for a gassing current limiting fuse made of an asbestos free material is disclosed. The spider material produces an arc quenching gas and water upon erosion by an arc. The material includes the following proportions of ingredients: 50-80% Al2O3.3H2O; 8-22% Wollastonite (CaSiO3); and 10-25% melamine formaldehyde resin.
Hassler Stephen P.
Johnson Stephen P.
Cooper Industries Inc.
Smart & Biggar
LandOfFree
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