Power pack with switch for plural primary-secondary connections
US3939362A · kind A · utility
11Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1974 |
| Grant date | Feb 17, 1976 |
| Priority date | — |
| Expiry date | Dec 5, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2005/043
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power pack unit includes a casing and cover and a transformer subassembly having a molded bobbin of insulating material which receives primary and secondary lugs, a selected primary and a secondary winding configuration, laminations, A.C. terminals, connecting wiring, and a bobbin-mounted switch. This switch is positionable external of the casing for connecting selected primary or secondary taps as required to accommodate to a particular A.C. supply, i.e., 110 or 220 volt A.C., or to provide a selection of A.C. or D.C. output voltages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.