Rotary file, support member and abrasive device

Details Rotary file, support member and abrasive device Rotary file, support member and abrasive device

1989-04-19

1990-07-17

Terrell, William

Metal working

Filing

29 80, 51209R, 51362, 279 1M, B23D 6706, B23D 7102, B24D 700

Patent

active

049412450

ABSTRACT:
A disc-shaped rotary file, having a relatively flat operating surface with a curved outer periphery, is formed of ferromagnetic material and includes a plurality of cutting members. The rotary file also includes a second side opposite the operating surface and a number of stop members protruding therefrom. A complementary support member having a relatively flat surface and curved outer periphery is adapted to receive the rotary file superimposed thereon and includes one or more magnets to hold the rotary file in place. The support member also defines one or more depressions or slots for receiving the protruding stop members for preventing the rotation of the rotary file with respect to the support member and for rotation of the file when the support member is rotated.

REFERENCES:
patent: 3165813 (1965-01-01), Harvell et al.
patent: 3226888 (1966-01-01), Erenyi
patent: 4507897 (1985-04-01), Vieau et al.
patent: 4598916 (1986-02-01), McGehee
patent: 4798025 (1989-01-01), Lokken et al.

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