US3963521A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leakproof bonding of storage battery components
Assignee: Accumulatorenfabrik Sonnenschein GmbH
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Filing: 1975-09-03
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Granted: 1976-06-15
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Expires: 1995-09-03
Abstract
Abstract Metallic and/or thermoplastic components of a storage battery are fluid-tightly connected by means of a multicellular thermoplastic sealing member formed by injection of a foamable thermoplastic resin composition containing a foaming agent into a cavity provided between the components to be connected together.
Inventors
- 👤 Otto Jache
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:12
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/50; H01M50/528; H01M50/529; H01M50/10; H01M50/172; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
120 words
In a storage battery the combination of a casing of thermoplastic material having a partition wall dividing the casing into cell compartments at opposite sides thereof, said partition wall having a transverse opening therethrough, cell groups comprising negative plates and positive plates, each group being electrically connected together by metallic straps, one of said cell groups being positioned in each of said cell compartments, a metallic inter-cell connector electrically connecting adjacent straps of said cell groups and passing through said opening and a one piece molded sealing member of multicellular thermoplastic polymeric material bonded to and confining said inter-cell connector and fused to the partition wall in the region within said opening and to the adjoining areas on opposite surfaces.
Claim 2
Dependent Claim
120 words
In a storage battery the combination of a casing of thermoplastic material having a partition wall dividing the casing into cell compartments at opposite sides thereof, said partition wall having a transverse opening therethrough, cell groups comprising negative plates and positive plates, each group being electrically connected together by metallic straps, one of said cell groups being positioned in each of said cell compartments, a metallic inter-cell connector electrically connecting adjacent straps of said cell groups and passing through said opening and a one piece molded sealing member of multicellular thermoplastic polymeric material bonded to and confining said inter-cell connector and fused to the partition wall in the region within said opening and to the adjoining areas on opposite surfaces.
Claim 3
Dependent Claim
34 words
The combination as defined in claim 1, in which the inter-cell connector is in registry with said straps and forms therewith a unitary structure which is embedded in said one piece molded sealing member.
Claim 4
Dependent Claim
39 words
The combination as defined in claim 1, in which the inter-cell connector extends between terminal lugs rising from the formed integrally with said straps, said terminal lugs being at least partially embedded in said one piece molded sealing member.
References Cited (Backward Citations)
US3264141A
Cited
US3350236A
Cited
US3388005A
Cited
GB1116456A
Cited
US3494798A
Cited
US3811956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-15 | 1979-12-15 | 1980-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-15 | 1983-12-15 | 1984-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-15 | 1987-12-15 | 1988-06-15 | $7700.00 | Window Closed / Lapsed |