EP 0232920 A3 19871104 - INTERNAL HOLE SAW WITH A PLURALITY OF BLADES FOR SAWING OF CRYSTAL BARS AS WELL AS METHODS EXECUTED BY THAT SAW
Title (en)
INTERNAL HOLE SAW WITH A PLURALITY OF BLADES FOR SAWING OF CRYSTAL BARS AS WELL AS METHODS EXECUTED BY THAT SAW
Publication
Application
Priority
DE 3604739 A 19860214
Abstract (en)
[origin: US4834062A] A multi-blade inner hole saw for the sawing of crystal rods or blocks, such as solar cell base material on a silicon base, into thin wafers has saw blades arranged mirror-symmetrically with respect to the bearing on either side of a common drive cylinder. In the sawing operation, the workpieces are sawn synchronously by the saw blades.
IPC 1-7
IPC 8 full level
B28D 5/00 (2006.01); B28D 5/02 (2006.01); H01L 21/304 (2006.01)
CPC (source: EP US)
B28D 5/0082 (2013.01 - EP US); B28D 5/024 (2013.01 - EP US); B28D 5/028 (2013.01 - EP US); B28D 5/029 (2013.01 - EP US); Y10T 83/0538 (2015.04 - EP US); Y10T 83/778 (2015.04 - EP US)
Citation (search report)
- [XD] EP 0093406 A1 19831109 - WACKER CHEMITRONIC [DE]
- [A] SOVIET INVENTIONS ILLUSTRATED, Sektion PQ, Woche E 27, 18. August 1982 DERWENT PUBLICATIONS LTD., London, P 64.
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0232920 A2 19870819; EP 0232920 A3 19871104; AU 585125 B2 19890608; AU 6821487 A 19870820; DE 3604739 A1 19870820; JP S62193807 A 19870826; US 4834062 A 19890530
DOCDB simple family (application)
EP 87102096 A 19870213; AU 6821487 A 19870202; DE 3604739 A 19860214; JP 27888886 A 19861125; US 20135688 A 19880526