Method for welding battery terminal connectors to electrode grid tabs
US4321455A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 25, 1978 |
| Grant date | Mar 23, 1982 |
| Priority date | — |
| Expiry date | Oct 25, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The process and apparatus according to the present invention includes positioning the tab portion(s) of a particular electrode grid and the connector portion of a terminal connector in working proximity to an arc welding apparatus, activating the torch and varying a magnetic field around the torch "flame" to alter the angular orientation of the "flame" relative to the torch tip for moving the "flame" in a generally elliptical pattern. As preferably embodied, a variable electromagnetic field is generated around the torch "flame" by at least four electromagnet probes positioned in oppositely disposed pairs around the torch which is a plasma arc welding apparatus. According to another aspect of the invention, the cell core is positioned adjacent the torch by moving the cell core towards the torch in a direction parallel to the longitudinal axis of the torch "flame".
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.