Pneumatic grinding/polishing machine

Details Pneumatic grinding/polishing machine Pneumatic grinding/polishing machine

1997-11-14

1999-03-09

Eley, Timothy V.

Abrading

Frame or mount

Portable abrader

451353, 451359, B24B 2304

Patent

active

058792287

ABSTRACT:
A pneumatic grinding/polishing machine is disclosed. It includes a fixed upper casing, a lower casing, an annular wall, an upper sealing member, a lower sealing member, a rotor, multiple vanes, a central shaft assembly and a grinding tray assembly. An inlet port of the annular wall is disposed above an outlet port and the inlet port and the outlet port are isolated from each other by a middle stopper ring. The upper sealing member has an upper stopper ring and an upper cover body. The lower sealing member has a lower stopper ring and a lower cover body. A dustproof sheath is disposed around the second bearing for preventing the splashing dusts from contacting with the second bearing. Therefore, this invention is easy to assemble and manufacture, no leakage, long using life.

REFERENCES:
patent: 4467565 (1984-08-01), Wallace et al.
patent: 4660329 (1987-04-01), Hutchins
patent: 4671019 (1987-06-01), Hutchins
patent: 4854085 (1989-08-01), Huber
patent: 5319888 (1994-06-01), Huber et al.
patent: 5445558 (1995-08-01), Hutchins
patent: 5453040 (1995-09-01), Schaal et al.
patent: 5595530 (1997-01-01), Heidelberger

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