US3836401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead accumulator construction
Assignee: VARTA AG
•
Filing: 1972-08-25
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Granted: 1974-09-17
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Expires: 1992-08-25
Abstract
Abstract A lead accumulator or battery consists of a plurality of cells each having positive and negative plates. A cover provided for each of the cells has openings therein and cell connectors electrically and mechanically interconnect the cells. The cell connectors are disposed below the upper edge of the cell covers and provide a rigid interconnection between the cells. The disposition of the cell connectors below the upper edge of the cell cover protects against inadvertent short circuiting caused by contact with metal objects.
Inventors
- 👤 H Niklas
- 👤 W Knabenbauer
- 👤 H Rabenstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:36
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/50; H01M50/502; H01M50/503; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
52 words
A lead accumulator according to claim 1 wherein said openings in said cell covers are formed along a straight line, at least one of said selectively removable wall portions extending parallel to said straight line and at least one other of said selectively removable wall portions extending perpendicular to said straight line.
Claim 2
Dependent Claim
30 words
A lead accumulator according to claim 1, wherein conductors are provided to interconnect like plates within the cell, said conductors being disposed below the upper edge of said cell covers.
Claim 3
Dependent Claim
21 words
A lead accumulator according to claim 1, wherein said cell connectors and conductors are embedded within a mass of insulating material.
Claim 4
Dependent Claim
15 words
A lead accumulator according to claim 1, wherein said cell connectors have an H-shaped configuration.
Claim 5
Dependent Claim
15 words
A lead accumulator according to claim 1, wherein said cell conductors have a T-shaped configuration.
Claim 6
Dependent Claim
16 words
A lead accumulator according to claim 1, wherein said cell connectors have a straight line configuration.
Claim 7
Dependent Claim
32 words
A lead accumulator according to claim 1, wherein each cell comprises double layer separators including a fine layer adjacent to said negative electrodes and a felt layer adjacent to said positive electrodes.
References Cited (Backward Citations)
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Cited
US2620370A
Cited
US2653985A
Cited
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Cited
US3396056A
Cited
US3494798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |