High frequency thermode driven device employing one-turn-secondary transformers
US5068509A · kind A · utility
1Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1990 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Jan 11, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K3/0471
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A high frequency thermode-driven device for use in hotbar soldering has a unitary metal support frame which is used for the secondaries of four individual transformers. The support frame also serves as the structural member to which the transformer and thermodes themselves are fastened. This is possible because the secondaries require only one turn; the upstanding ears of projections which extend radially outwardly from the support frame so as to protrude through the apertures in the transformer cores provide a source of voltage and become a secondary winding when connected to a load impedance, such as a thermode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.