DC motor
US4661733A · kind A · utility
14Cited by
7References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 11, 1986 |
| Grant date | Apr 28, 1987 |
| Priority date | — |
| Expiry date | Mar 11, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S310/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The motor comprises a flexible circuit composed of a substrate disposed in an air gap between the stator and the rotor, bearing a coating of copper etched to produce the various circuit components. Conductive paths carry the current to brushes soldered on zones of the circuit. Another path leads to further zones constituting shorted turns interconnected by striated areas constituting resistor elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.