Patent EP0053227A1 successfully refreshed from Google Patents.
Patent JPS5497705A successfully refreshed from Google Patents.
← Back to Patent Explorer
JPS5497705A Expired / Lapsed JP ⏱️ 0.0 years remaining

Commutation device for rotary electric machine

Assignee: Hitachi Ltd
•
Filing: 1978-01-18
•
Granted: —
•
Expires: 1998-01-18
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract PURPOSE: To enable even a thin wire to be reliably connected to a commutator segment through tig welding, by forming the weld-section of the commutator segment to have a large weld-area. CONSTITUTION: In a commutation device of a rotary electric machine having commutator segments to which armature windings are connected by welding, the weld-surface 4 of a commutater segment 1 is inclined by an angle θ to increase the weld-area. Thus, an armature winding consiting of a thin wire can reliably be connected to a commutator segment by means of tig welding. COPYRIGHT: (C)1979,JPO&Japio

Inventors

  • 👤 Atsuko Koseki
  • 👤 Toshiaki Fukaya

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-09 06:13
CPC Classifications
—

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag