Method for joining cover and casing of a battery
Abstract
Abstract A method for joining the cover to the casing of a battery of a type-wherein the cover and the casing are made of a thermo-plastic material and poles connecting bars are embedded beforehand in the cover, involves the steps of elevating the cover a predetermined distance from said casing, inserting a plurality of comb-shaped heating plates having a plurality of slots, between the cover and the casing in such a manner that the poles are accommo- dated in the slots, depressing the cover so that required portions on the cover and casing are brought into contact with the heating plates, removing the heating plates, and depressing the over against the casing so that the required portions of the cover and the casing are thereby bonded together completely.
Inventors
- 👤 S Kano
- 👤 S Tanaka
- 👤 K Ojima
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |