Invention Patent COMUTADOR, MOTOR, E MÉTODO DE FABRICAÇÃO DE UM COMUTADOR de JOHNSON ELECTRIC INTERNATIONAL AG — IPC H02K 13/00. Drawing published by the INPI in the Industrial Property Gazette.
The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.
The invention relates to a commutator, comprising an insulating base and a plurality of commutator segments arranged on the insulating base, wherein each commutator segment comprises a metal layer, a transition layer and a graphite layer arranged on the base in sequence. The transition layer contains a material identical to that of the graphite layer and a material identical to that of the metal layer. The invention further relates to a motor comprising the commutator and a method for manufacturing the commutator. As the transition layer contains the material identical to that of the graphite layer and the metal layer, the problem that the graphite layer and the metal layer are cracked during high temperature sintering is resolved. The service life of the commutator is prolonged. The method for manufacturing the commutator reduces chemical contamination and production cost caused by electroplating and brazing used in a traditional technology.
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Arquivamento - Art. 36 §1° da LPI
#11.2
11/01/2022
RPI 2704
Retificação de publicação
#3.8
Referente à RPI 2566 de 10/03/2020, quanto ao item (54).
07/05/2022
RPI 2687
Parecer de pré-exame
#6.23
06/28/2022
RPI 2686
Transferência deferida
#25.1
03/24/2020
RPI 2568
Publicação do pedido de patente
#3.1
03/10/2020
RPI 2566
15.30
Anulada a publicação código 15.21 na RPI nº 2449 de 12/12/2017 por ter sido indevida.
01/07/2020
RPI 2557
Pedido de patente depositado
#2.1
01/07/2020
RPI 2557
104
Recorrente: O depositante. @ Despacho: Recurso conhecido e provido. Reformada a decisão recorrida. [104]
06/18/2019
RPI 2528
12.6
01/09/2018
RPI 2453
Anulação de numeração
#15.21
Pedido com Numeração Anulada tendo em vista ausência de elementos mínimos ao depósito, conforme Art. 21 da Lei 9279/96 e Art. 3º da Instrução Normativa 31/2013
12/12/2017
RPI 2449
Requerimento de pedido de patente
#2.10
Número de Protocolo '870170017106' em 15/03/2017 15:17 (WB)
