EP 0114420 B1 19860820 - METHOD OF MANUFACTURING A COMMUTATOR FOR A D.C. ELECTRIC MACHINE
Title (en)
METHOD OF MANUFACTURING A COMMUTATOR FOR A D.C. ELECTRIC MACHINE
Publication
Application
Priority
EP 83200097 A 19830124
Abstract (en)
[origin: US4598464A] Disclosed is a process for the production of a collector in the form of a collector ring for use with direct current electric machines. The process consists of heating the collector ring, comprising copper sheets and insulating mica plates, assembled in a conventional apparatus by means of an inductor coaxial with the ring, and of exposing the collector ring to a radial pressure by applying to the apparatus a pressure of a predetermined value by means of a press.
IPC 1-7
IPC 8 full level
H01R 43/08 (2006.01); H01R 43/06 (2006.01); H02K 13/00 (2006.01)
CPC (source: EP US)
H01R 43/06 (2013.01 - EP US); Y10T 29/49011 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0114420 A1 19840801; EP 0114420 B1 19860820; AT E21590 T1 19860915; DE 3365369 D1 19860925; JP S59175356 A 19841004; US 4598464 A 19860708
DOCDB simple family (application)
EP 83200097 A 19830124; AT 83200097 T 19830124; DE 3365369 T 19830124; JP 1092884 A 19840124; US 57339384 A 19840124