Method of manufacturing a multitrack magnetic head employing double helix structure
US4412379A · kind A · utility
3Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1981 |
| Grant date | Nov 1, 1983 |
| Priority date | — |
| Expiry date | Sep 17, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4906
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multitrack magnetic head is made from an electrically conductive first helix formed on an iron wire that is, in turn, wound to form a second helix. By cutting or lapping a longitudinal flat along one side of the second helix, the first helix is severed into respective discrete coil-wound gapped cores.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.