Method of making a transformer coil assembly
US3958328A · kind A · utility
30Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 2, 1975 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Jun 2, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49799
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for making a coil assembly of the telescoping bobbin type wherein axially spaced coils are wound on an elongate tubular form comprising two spool-like bobbin sections integrally joined to each other in end-to-end relation by thin rupturable webs. The core of one bobbin section has an opening therethrough sized to receive the flanges of the other bobbin section. After winding of the coils is completed, the bobbin sections are axially pressed toward each other to rupture the rupturable webs and telescope one bobbin section into an opening of the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.