Patent US4384030A successfully refreshed from Google Patents.
US4384030A
Expired / Lapsed
US
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Sealant for battery cells
Assignee: Congress Financial Corp Florida
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Filing: 1980-08-27
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Granted: 1983-05-17
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Expires: 2000-08-27
Abstract
Abstract An improved sealant for battery cells is disclosed. The new sealant is prepared by mixing trichloroethane with asphalt. This composition, is less flammable than known battery cell sealants and, when appiled to the seal ring of a battery cell, yields unexpected improvements in preventing leakage of electrolyte from the battery cell.
Inventors
- 👤 Kenneth C. LeDuc
- 👤 Joseph P. Bellino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:36
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/02; H; H01; H01M; H01M50/00; H01M50/10; H01M50/183; H01M50/184; H01M50/186; H01M50/19; H01M50/193; H01M50/197; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P20/00; Y02P20/141
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
37 words
A sealant composition for use in battery cells to prevent electrolyte leakage and to reduce sealant flammability which consists essentially of a mixture of hard asphalt and trichloroethane in an approximate ratio of about 1:5 by volume.
Claim 2
Dependent Claim
37 words
A sealant composition for use in battery cells to prevent electrolyte leakage and to reduce sealant flammability which consists essentially of a mixture of hard asphalt and trichloroethane in an approximate ratio of about 1:5 by volume.
Claim 3
Dependent Claim
11 words
The sealant composition of claim 1 wherein said trichloroethane is 1,1,1-trichloroethane.
Claim 4
Dependent Claim
61 words
In a process for the manufacture of a battery cell having a sealing ring between the cell container and closure member, the improvement which comprises applying to the surface of the sealing ring to form a coating thereon, a sealant composition which consists essentially of a mixture of hard asphalt and trichloroethane in an approximate ratio of about 1:5 by volume.
Claim 5
Dependent Claim
61 words
In a process for the manufacture of a battery cell having a sealing ring between the cell container and closure member, the improvement which comprises applying to the surface of the sealing ring to form a coating thereon, a sealant composition which consists essentially of a mixture of hard asphalt and trichloroethane in an approximate ratio of about 1:5 by volume.
Claim 6
Dependent Claim
10 words
The process of claim 3 wherein said trichloroethane is 1,1,1-trichloroethane.
Claim 7
Dependent Claim
50 words
In a battery cell having a sealing ring between the cell container and closure member, the improvement which comprises employing a sealing ring having coated on its surface a sealant composition consisting essentially of a mixture of hard asphalt and trichloroethane in an approximate ratio of about 1:5 by volume.
Claim 8
Dependent Claim
50 words
In a battery cell having a sealing ring between the cell container and closure member, the improvement which comprises employing a sealing ring having coated on its surface a sealant composition consisting essentially of a mixture of hard asphalt and trichloroethane in an approximate ratio of about 1:5 by volume.
Claim 9
Dependent Claim
11 words
The battery cell of claim 5 wherein said trichloroethane is 1,1,1-trichloroethane.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |