Welding intercell connections by induction heating
US4661668A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1985 |
| Grant date | Apr 28, 1987 |
| Priority date | — |
| Expiry date | Oct 1, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a storage battery having a plurality of electrically insulating vertical partitions, the method of the invention comprises sandwiching each partition, successively, between a pair of terminals of lead or other easily fusible material of the so-called "tombstone" type, that is, of "L" shape in which the vertical or riser portion of one terminal has a horizontal pin which extends through a hole in the partition and through a hole in the riser portion of the other terminal. An insulating sheet and induction coil are placed against the end of the pin by a fusing apparatus which is provided with a pair of arms which are pivotally operated by a fluid cylinder, one arm carrying the above-mentioned coil and insulating sheet and the other acting as a pusher. The terminal pairs and partition are squeezed together by said arms and thereafter induction current is applied to the coil to fuse the perimetrical portion of the pin and surrounding surface of the hole of the other terminal so as to fill the void therebetween and form a solid intercell connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.