Patent US4828943A successfully refreshed from Google Patents.
US4828943A
Expired / Lapsed
US
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Battery having indicia for correcting specific gravity determination at varying electrolyte levels
Assignee: Southern Company Services Inc
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Filing: 1987-11-02
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Granted: 1989-05-09
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Expires: 2007-11-02
Abstract
Abstract A battery which facilitates the measurement and recording of data is provided. The battery has a transparent casing wall and a scale attached to the wall for measuring the level of electrolyte within the battery. The scale contains first measuring indicia for measuring the distance the electrolyte level falls below a high level mark, and second indicia aligned literally opposite and having values, for example, specific gravity value correction factors, correlating to those of the first indicia.
Inventors
- 👤 Sue P. Pritchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:25
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/48; H01M10/484; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
68 words
A battery comprising: (a) a storage cell capable of containing electrolyte; (b) at least one transparent battery casing wall for allowing visual observation of the level of said electrolyte within said storage cell; and (c) a scale on said transparent wall for quantifying said observed electrolyte level; said scale comprising correction factor measuring indicia having predetermined values indicating a specific gravity correction factor for said observed electrolyte level.
Claim 2
Dependent Claim
68 words
A battery comprising: (a) a storage cell capable of containing electrolyte; (b) at least one transparent battery casing wall for allowing visual observation of the level of said electrolyte within said storage cell; and (c) a scale on said transparent wall for quantifying said observed electrolyte level; said scale comprising correction factor measuring indicia having predetermined values indicating a specific gravity correction factor for said observed electrolyte level.
Claim 3
Dependent Claim
52 words
The battery of claim 1, wherein said scale comprises measuring indicia having predetermined values for quantifying said observed electrolyte level, said indicia numbered in ascending order from a high electrolyte level mark to a low electrolyte level mark to indicate the distance said observed electrolyte level falls below said high level mark.
Claim 4
Dependent Claim
54 words
The battery of claim 2, further comprising correction factor measuring indicia having predetermined values indicating a specific gravity correction factor for said observed electrolyte level, and wherein said electrolyte level measuring indicia are laterally aligned with said correction factor measuring indicia having predetermined values correlating to said values of said electrolyte level measuring indicia.
Claim 5
Dependent Claim
19 words
The battery of claim 1, wherein said battery comprises a plurality of said storage cells each containing said scale.
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) | 1992-05-08 | 1992-11-07 | 1993-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-08 | 1996-11-07 | 1997-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-08 | 2000-11-07 | 2001-05-09 | $7700.00 | Window Closed / Lapsed |