TOOLS FOR GRINDING, BUFFING, OR SHARPENING (tools for grinding or polishing optical surfaces on lenses or surfaces of similar shape B 24 B 13/01; grinding heads B 24 B 41/00; manufacture of abrasive or friction articles or shaped materials containing macromolecular substances C 08 J 5/14; polishing compositions C 09 G 1/00; abrasives
C 09 K 3/14)
Notes
(1)
This subclass covers grinding tools for working on any material.
(2)
Tools for grinding, buffing or sharpening, specially designed for a particular purpose, which purpose is provided for in a single other place, are classified in that place, e.g. B 23 F 21/02. [4]
3
/
00
Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents (composition of friction linings F 16 D 69/02)
3
/
02
•
the constituent being used as bonding agent
3
/
04
•
•
and being essentially inorganic
3
/
06
•
•
•
metallic
3
/
08
•
•
•
•
for close-grained structure, e.g. using metal with low melting point
3
/
10
•
•
•
•
for porous or cellular structure, e.g. for use with diamonds as abrasives
3
/
12
•
•
•
water-setting, e.g. concrete
3
/
14
•
•
•
ceramic, i.e. vitrified bondings
3
/
16
•
•
•
•
for close grained structure, i.e. of high density
3
/
18
•
•
•
•
for porous or cellular structure
3
/
20
•
•
and being essentially organic
3
/
22
•
•
•
Rubbers
3
/
24
•
•
•
•
for close-grained structure
3
/
26
•
•
•
•
for porous or cellular structure
3
/
28
•
•
•
Resins
3
/
30
•
•
•
•
for close-grained structure
3
/
32
•
•
•
•
for porous or cellular structure
3
/
34
•
characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
Bonded abrasive wheels
5
/
00
Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
5
/
02
•
Wheels in one piece
5
/
04
•
•
with reinforcing means
5
/
06
•
with inserted abrasive blocks, e.g. segmental (zonally graded B 24 D 5/14)
5
/
08
•
•
with reinforcing means
5
/
10
•
with cooling provisions, e.g. with radial slots
5
/
12
•
Cut-off wheels
5
/
14
•
Zonally-graded wheels; Composite wheels comprising different abrasives
