Abrading – Machine – Rotary tool
Patent
1998-01-30
1999-12-28
Rose, Robert A.
Abrading
Machine
Rotary tool
451359, B24B 500
Patent
active
060074124
ABSTRACT:
An abrading or polishing tool comprises a housing that contains a pneumatically drive motor mounted therein. A drive assembly is contained at least partially in the housing and is engaged with the motor to be driven by the motor during operation. A head is engaged with the drive assembly and includes a spindle portion, the head and spindle being rotated during operation of the motor. The head is further configured to engage a working pad for abrading or polishing a work surface. A double bearing assembly is contained within the housing and is engaged with a portion of the spindle adjacent the lower end of the spindle to substantially prevent radial play of the spindle during operation of the tool.
REFERENCES:
patent: 1667329 (1928-04-01), Menzel
patent: 2326396 (1943-08-01), Schaedler
patent: 3084364 (1963-04-01), Hutchins
patent: 3110993 (1963-11-01), Grage
patent: 3824745 (1974-07-01), Hutchins
patent: 3934657 (1976-01-01), Danielson
patent: 4145848 (1979-03-01), Hutchins
patent: 4592170 (1986-06-01), Hutchins et al.
patent: 4660329 (1987-04-01), Hutchins
patent: 4671019 (1987-06-01), Hutchins
patent: 4671020 (1987-06-01), Hutchins
patent: 4986036 (1991-01-01), Hutchins
patent: 5445558 (1995-08-01), Hutchins
patent: 5597348 (1997-01-01), Hutchins
Hutchins Manufacturing Company
Rose Robert A.
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