EP 0178577 A3 19880914 - FELT BODY AS A TECHNICAL DEVICE, AS WELL AS METHOD AND APPARATUS FOR MAKING THE SAME
Title (en)
FELT BODY AS A TECHNICAL DEVICE, AS WELL AS METHOD AND APPARATUS FOR MAKING THE SAME
Publication
Application
Priority
DE 3438381 A 19841019
Abstract (en)
[origin: US4675244A] A felt member, in particular a felt ring as a technical accessory for polishing and grinding operations, characterized in that the felt member contains at least 35% of a natural fiber material and polishing grains of a grain size of below 1000 mu m are enclosed in cavities in the tangled structure of the natural fiber material.
IPC 1-7
IPC 8 full level
B24D 13/12 (2006.01)
CPC (source: EP US)
B24D 13/12 (2013.01 - EP US); Y10T 428/25 (2015.01 - EP US); Y10T 442/53 (2015.04 - EP US)
Citation (search report)
- [X] GB 557038 A 19431102 - UNITED COTTON PRODUCTS COMPANY
- [X] FR 1307038 A 19621019 - CARBORUNDUM CO
- [X] FR 564197 A 19231222
- [X] FR 2222174 A1 19741018 - TOYODA MACHINE WORKS LTD [JP]
- [X] GB 417085 A 19340927 - WILLIAM HARLAND MCGILL
- [XP] CH 650440 A5 19850731 - STUDER AG FRITZ
- [A] CH 398951 A 19660315 - ARMOUR & CO [US]
Designated contracting state (EPC)
BE CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0178577 A2 19860423; EP 0178577 A3 19880914; CN 85108273 A 19860510; DE 3438381 A1 19860424; US 4675244 A 19870623; US 4795663 A 19890103
DOCDB simple family (application)
EP 85112780 A 19851009; CN 85108273 A 19851012; DE 3438381 A 19841019; US 2913587 A 19870323; US 78683885 A 19851011