US 6,981,667 B2
Elliptical acetabuliform blade for shredder
Simon Hunag, SanChung (Taiwan)
Assigned to Michilin Prosperity Co., Ltd., Taipei Hsien (Taiwan)
Filed on Oct. 10, 2003, as Appl. No. 10/682,198.
Prior Publication US 2005/0077407 A1, Apr. 14, 2005
Int. Cl. B02C 18/16 (2006.01)
U.S. Cl. 241—295 3 Claims
OG exemplary drawing
 
1. An elliptical acetabuliform blade for a shredder, punched from a sheet metal in a mold into an elliptical acetabuliform blade, wherein a periphery of elliptical blade is integrally formed into a planar disk serving as a flank, two ends along the major axis of the elliptical flank are integrally formed into a hooked edge, an inner edge of the flank then integrally extends inwards and downwards to form an arc base and then a circular base.