Wave saw blade

Details Wave saw blade Wave saw blade

2005-03-29

2005-03-29

Nguyen, Dung Van (Department: 3723)

Abrading

Rigid tool

Rotary cylinder

C451S542000, C451S547000, C125S015000

Reexamination Certificate

active

06872133

ABSTRACT:
A saw blade for cutting hard workpieces, such as concrete or stone, characterized by improvement of the shape of a shank of the saw blade providing a plurality of cutting tips of the saw blade with a rotational force while the cutting tips are securely attached to the shank. The saw blade comprises a disc-shaped shank having an insertion hole formed at the center thereof, through which a rotating shaft of an electric-powered tool is inserted, and wave-shaped portions formed over a prescribed portion of the radius of the disc-shaped shank, and a plurality of cutting tips attached to the outer circumference of the shank for cutting a workpiece. The wave-shaped portions are spaced a prescribed distance from each other and alternately arranged on the front and rear surfaces of the disc-shaped shank. The prescribed portion of the radius of the disc-shaped shank is at a distance from the center of the insertion hole. The cutting tips contain particles of high hardness.

REFERENCES:
patent: 3939612 (1976-02-01), Peterson
patent: 4407178 (1983-10-01), Storzer
patent: 4624237 (1986-11-01), Inoue
patent: 5471970 (1995-12-01), Sakarcan
patent: 6071185 (2000-06-01), Genau et al.
patent: 6277017 (2001-08-01), Ji
patent: 6460532 (2002-10-01), Park
patent: 606001 (1934-11-01), None
patent: WO 9201542 (1992-02-01), None

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