Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1990-05-14
1992-10-06
Rose, Robert A.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51378, B24D 516
Patent
active
051521067
ABSTRACT:
A disposable cut-off wheel for mounting on a rotatable threaded spindle which may be used with a power tool. The cut-off wheel includes a central aperture which contains a threaded nut having a flange at one end non-removably secured thereto without the aid of adhesives in such a manner that the cut-off wheel is placed in compression when it is operably secured upon the spindle under operational loads. The nut is secured to the cut-off wheel by upsetting one end of the nut causing it to protrude outwardly over the rear surface of the cut-off wheel or into engagement with the aperture. A generally inverted cup shaped supporting flange is carried by the spindle for engaging the outer surface of the cut-off wheel during operation of the cut-off wheel. A plastic washer like insert member is received within and carried by the supporting flange and provides a bearing between the lip of the supporting flange and the cut-off wheel.
REFERENCES:
patent: 2810239 (1957-10-01), Burleigh
patent: 3653858 (1972-04-01), Field
patent: 3879178 (1975-04-01), Bosma
patent: 4015371 (1977-04-01), Grayston
patent: 4541205 (1985-09-01), Patrello
patent: 4637170 (1987-01-01), Block
patent: 4655006 (1987-04-01), Block
patent: 4729193 (1988-03-01), Gant et al.
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