Method and apparatus for fabricating battery plate envelopes
US4407063A · kind A · utility
Inventor
Key dates
| Filing date | Oct 13, 1981 |
| Grant date | Oct 4, 1983 |
| Priority date | — |
| Expiry date | Oct 13, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53135
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus are provided for fabricating battery plate envelopes from a sheet formed of microporous plastic material having a width greater than that of a battery plate to be enveloped. A battery plate is pushed edgewise into the sheet to fold the sheet about the battery plate with edges overlapping the battery plate on both sides. The folded sheet is fed with the battery plate therein into the interface between a pair of opposed pressure rollers each of which include a pair of axially aligned sealing wheels. A continuous seal is formed between the overlapping edges of the sheet by compressing the edges into one another between the sealing wheels. Each set of sealing wheels may comprise gear teeth whose teeth continuously mesh with those of the teeth mounted on the opposing pressure roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.