Multitrack magnetic head employing double helix structure
US4314298A · kind A · utility
1Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1979 |
| Grant date | Feb 2, 1982 |
| Priority date | — |
| Expiry date | Oct 9, 1999 |
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 longitudinally cutting along one side of the second helix, the first helix is severed into respective coils on discrete gapped cores.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.