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US 4,054,937 AGranted
Capacitor
AssigneeWestinghouse Electric Corp.
InventorsLyon Mandelcorn, Robert L. Miller, George E. Mercier, John H. Pickett, Thomas W. Dakin
Life of this patent
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Abstract
A capacitor is disclosed of layers of metal foil alternating with insulating sheets impregnated with a dielectric fluid. The dielectric fluid comprises a mixture of 80 to 99% by weight mono-ethylated, mono-propylated, or mono-butylated biphenyl, biphenyl oxide, or biphenyl methane and about 1 to about 20% by weight di-ethylated, di-propylated, or di-butylated biphenyl, biphenyl oxide, or biphenyl methane.
Claims15
A capacitor comprising layers of metal foil alternating with a dielectric spacer impregnated with a dielectric fluid which comprises:
- a. about 80 to about 99% by weight of a compound having the general formula ##STR3## or mixtures thereof, where each R is independently selected from alkyl from C.sub.2 to C.sub.4 ;
- and
- b. about 1 to about 20% by weight of a compound having the general formula ##STR4## or mixtures thereof, where each R.sub.1 is independently selected from alkyl from C.sub.2 to C.sub.4.
Dependencies are inferred from the claim text.