Title:
ARMATURE FOR AN ELECTROMOTIVE DEVICE
Document Type and Number:
WIPO Patent Application WO2000062402
Kind Code:
A9
Abstract:
The armature is fabricated from pre-machined copper sheet metal parts with an electrical conductor pattern of numerous axially extending conductive bands. These precision machined sheet metal parts are cold rolled to form two work hardened cylinders, each cylinder having a complimentary pattern of electrically conductive bands creating a half-electric circuit. The two cold rolled metal cylinders are sized such that the smaller diameter inner cylinder fits inside the larger diameter outer cylinder. The surface of the inner cold rolled cylinder is over-wrapped with fiber strands, woven in several layers to provide physical spacing and electrical insulation. The fiber wrapped inner cylinder is placed inside the larger outer cylinder radially oriented to ensure that an electrical circuit is created by welding the inner and outer cylinder at the conductor tabs. The surface of this cylinder assembly is over-wrapped with fiber strands, woven in several layers and holding the two cylinders together.
Inventors:
GRAHAM GREGORY (US)
YANKIE GERRY (US)
YANKIE GERRY (US)
Application Number:
PCT/US2000/008374
Publication Date:
May 25, 2001
Filing Date:
March 29, 2000
Export Citation:
Assignee:
GRAHAM GREGORY (US)
YANKIE GERRY (US)
YANKIE GERRY (US)
International Classes:
H02K3/26; H02K3/04; H02K3/34; H02K3/47; H02K13/04; H02K15/02; H02K15/04; H02K15/12; H02K23/58; (IPC1-7): H02K3/26
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