EP 0158200 A3 19880803 - STRUCTURED ABRASIVE WHEEL
Title (en)
STRUCTURED ABRASIVE WHEEL
Publication
Application
Priority
DE 3413598 A 19840411
Abstract (en)
[origin: US4668248A] A grinding disk with an interrupted, circumferentially contoured surface for sanding or polishing a respectively contoured work piece surface has a plurality of sector-type grinding disk elements secured to a hub for rotation with the hub. The disk elements are produced by first casting a straight longitudinal grinding body, which is then cut into said elements, which are secured to the hub with sector spaces between neighboring elements so that the circumference forms a polygon. Substantial savings are achieved because now the hub can be used repeatedly by merely replacing the worn-out grinding body made of the sector-type grinding disks.
IPC 1-7
IPC 8 full level
B24D 13/12 (2006.01)
CPC (source: EP US)
B24D 13/12 (2013.01 - EP US)
Citation (search report)
- [X] US 2682733 A 19540706 - BUCKNER ORELLO S
- [X] FR 881239 A 19430419
- [X] GB 456985 A 19361118 - CARBORUNDUM CO
- [Y] US 2170643 A 19390822 - MASON EDWIN R
- [A] US 1953983 A 19340410 - BENNER RAYMOND C
- [X] US 2743559 A 19560501 - BALL ALBERT L, et al
- [X] US 2001911 A 19350521 - WOODDELL CHARLES E, et al
- [A] US 1783727 A 19301202 - THURE LARSSON
Designated contracting state (EPC)
AT BE CH FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0158200 A2 19851016; EP 0158200 A3 19880803; CA 1236978 A 19880524; DE 3413598 A1 19851024; ES 295819 U 19870616; ES 295819 Y 19871216; US 4668248 A 19870526
DOCDB simple family (application)
EP 85103452 A 19850323; CA 476841 A 19850319; DE 3413598 A 19840411; ES 295819 U 19850410; US 82576286 A 19860131