Patent US3772088A successfully refreshed from Google Patents.
US3772088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure assembly for storage battery
Assignee: Globe Union Inc
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Filing: 1972-03-20
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Granted: 1973-11-13
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Expires: 1992-03-20
Abstract
Abstract A closure assembly for a storage battery which can be completely or partially sealed with the battery casing and which has a portion integrally hinged to afford access to the cell vent openings. A manifold system is provided to direct gases from the cells to a common channel and through a porous ceramic diffuser before being vented to the outside of the cover. Baffles and dams are disposed in the channels to block the flow of electrolyte and provide positive retention of electrolyte. The channels are pitched in a manner to cause any escaped electrolyte to flow back into the cells through openings in the channel walls.
Inventors
- 👤 R Hennen
- 👤 V Halsall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:05
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/30; H01M50/383; H01M50/10; H01M50/147; C; C25; C25B; C25B11/00; C25B11/04; C25B11/042; C25B11/043; H01M50/35; H01M50/367; H01M50/394; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
134 words
A closure assembly for a storage battery having a case with upstanding walls, partitions and cells containing electrolyte comprising: an intermediate cover for said battery with a peripheral skirt extending from said cover to enclose electrolyte in said cells, a plurality of elongated interconnected grooves, a common groove and a compartment defined by said cover, said interconnected grooves, said common groove and said compartment in communication with each other, a porous filter carried in said compartment, means for inhibiting the flow of electrolyte from said cells toward said filter operatively associated with said grooves, a sealing top member overlying said cover and enclosing said grooves to form channels and an opening in said top adjacent said compartment and said filter for venting any gases in said grooves to the outside of said cover assembly.
Claim 2
Dependent Claim
134 words
A closure assembly for a storage battery having a case with upstanding walls, partitions and cells containing electrolyte comprising: an intermediate cover for said battery with a peripheral skirt extending from said cover to enclose electrolyte in said cells, a plurality of elongated interconnected grooves, a common groove and a compartment defined by said cover, said interconnected grooves, said common groove and said compartment in communication with each other, a porous filter carried in said compartment, means for inhibiting the flow of electrolyte from said cells toward said filter operatively associated with said grooves, a sealing top member overlying said cover and enclosing said grooves to form channels and an opening in said top adjacent said compartment and said filter for venting any gases in said grooves to the outside of said cover assembly.
Claim 3
Dependent Claim
37 words
The closure assembly as defined in claim 1 wherein slots are disposed through the walls of said grooves and said means for inhibiting the flow of electrolyte includes said grooves pitched in the direction toward said slots.
Claim 4
Dependent Claim
20 words
The closure assembly as defined in claim 2 wherein at least one of said slots communicates with each said cell.
Claim 5
Dependent Claim
25 words
The closure assembly as defined in claim 2 wherein said means for inhibiting the flow of electrolyte further includes dam members disposed in said grooves.
Claim 6
Dependent Claim
20 words
The closure assembly as defined in claim 4 wherein said dam members extend substantially to the top of said grooves.
Claim 7
Dependent Claim
29 words
The closure assembly as defined in claim 1 wherein said means for inhibiting the flow of electrolyte further includes baffle members in said common groove and adjacent said compartment.
Claim 8
Dependent Claim
38 words
The closure assembly as defined in claim 6 wherein said cover and said skirt are formed in one solid piece and said top is formed of a second solid piece with both said pieces being formed from polypropylene.
Claim 9
Dependent Claim
42 words
The closure assembly as defined in claim 1 wherein said common groove is joined with said interconnected grooves by means of two laterally extending grooves and said grooves are substantially rectilinear and trough shaped and disposed at right angles to each other.
Claim 10
Dependent Claim
54 words
The closure assembly as defined in claim 1 wherein said cover means includes a plurality of cell openings in said cover and said top includes a hinged portion with a plurality of interconnected plug members in the area of said cover which overlies the cell openings when said top is placed over said cover.
Claim 11
Dependent Claim
25 words
The closure assembly for a storage battery as defined in claiM 1 further including a relatively small space disposed between said filter and said opening.
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) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |