Patent ID: 7614937
Filing Date: 2009-11-10
Classification: B26D,Y10S,Y10T

Abstract:
1. An ultrasonic blade for cutting at least one of a metal foil and a metal graphite composite, comprising: a blade body defined about an axial line extending between a first side and a second side of the blade body; a first surface being formed at a first angle relative to the axial line and having a first curve, the first surface extending continuously from the first side to the second side of the blade body; a second surface being formed at a second angle relative to the axial line and having a second curve, the second surface extending continuously from the first side to the second side of the blade body; and a cutting edge on the blade body defined by the intersection of the first surface and the second surface, the first and second curved surfaces in combination with the first and second angles generating the cutting edge, the cutting edge comprising a first straight portion connected to a second straight portion via a curved portion, the first and second straight portions are angled with respect to each other and with respect to the axial line, wherein a profile of the cutting edge is substantially smooth and substantially facet free.