RICHARD M KORTE
Engineers in West Chester, PA
License number
Pennsylvania PE003156E
Category
Engineers
Type
Professional Engineer
Address
Address
West Chester, PA 19380
Professional information
Circuit Breaker Arc Chute Having Components Of Refractory Inorganic Material With Surfaces Of An Amorphous Fused Material, A Major Proportion Of Which Is Silica, And Method For Making Same
US Patent:
4006330, Feb 1, 1977
Filed:
Apr 16, 1975
Appl. No.:
5/568544
Inventors:
Richard M. Korte - West Chester PA
John E. Zlupko - Marlton NJ
John E. Zlupko - Marlton NJ
Assignee:
General Electric Company - Philadelphia PA
International Classification:
H01H 3308
US Classification:
200144C
Abstract:
This arc chute comprises an arc-confining portion of an electric insulating material comprising the heat and pressure reacted thermoset product of a mixture of chrysotile asbestos, orthophosphoric acid, and silica sand. The silica sand is present in the mixture in an amount of between 23. 5 and 30. 5 percent by weight of the mixture. The insulating material prior to operation of the arc chute has a surface layer formed by subjecting the pre-existing surface of the material to arc-plasma flame treatment that converts the material at said surface to an amorphous fused material, the major proportion of which is silica.