Method for making recording head
US3950845A · kind A · utility
1Cited by
5References
7Claims
0Family size
Inventor
Key dates
| Filing date | Jun 24, 1974 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Jun 24, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49057
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of making a multi-core magnetic head in which two blocks of magnetic, ceramic material, configured to the desired pole piece shape, are joined with the two surfaces defining the gap being glass bonded, and the block cut to form individual pieces which are then glass bonded in grooves in the bottom of a U-shaped non-magnetic holder so that the pieces extend upward into the region bounded by the holder sides. The region is then potted and a carbon fixture placed over the ends of the upwardly extending pieces to provide additional mechanical strength. The potted assembly is then cut to leave upwardly extending pole legs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.