US3216864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing sheath for electric accumulator plates
Assignee: Chloride Batteries Ltd
•
Filing: 1962-04-10
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Granted: 1965-11-09
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Expires: 1982-04-10
Abstract
No abstract record available.
Inventors
- 👤 Bushrod Charles James
- 👤 Hall Clifford James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:34
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/22; B29C53/24; B29C65/00; B29C65/02; B29C66/00; B29C66/40; B29C66/41; B29C66/43; B29C66/438; B29C66/50; B29C66/51; B29C66/54; B29C66/547; B29C66/70; B29C66/72; B29C66/729; B29C66/7292; H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/76; H01M4/765; B29C65/04; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/71; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2023/10; B29K2023/12; B29K2027/00; B29K2027/06; B29K2033/00; B29K2033/04; B29K2067/00; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0854; B29L; B29L2031/00; B29L2031/712; B29L2031/7146; B29L2031/7158; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A METHOD OF MANUFACTURING A FABRIC SHEATH FOR A TUBULAR TYPE PLATE OF A LEAD ACID ACCMULATOR IN THE FORM OF A PLURALITY OF PERMEABLE INDIVIDUAL TUBES INTERCONNECTED BE WEB PORTIONS EXTENDING BETWEEN ADJACENT TUBES, IN WHICH THE WALLS OF THE INDIVIDUAL TUBES CONSIST OF NONWOVEN FELT-LIKE FABRIC MADE FROM FIBRES OF AN ACID-RESISTING THERMOPLASTIC RESIN WHICH COMPRISES: SETTING EACH OF TWO LAYERS OF NON-WOVEN FABRIC IN A CORRUGATED FORM BY HEATING THE SAME BETWEEN SUITABLY SHAPED DIES, THEREBY IMPARTING A PERMANENT SET TO THE FIBRES OF THE FABRIC; SUPERIMPOSING THE TWO CORRUGATED LAYERS ONE ON THE OTHER; AND JOINING SAID SUPERIMPOSED LAYERS TOGETHER BY WELDING ALONG OPPOSED PARALLEL STRIPS THEREOF AND THEREBY FORMING SAID WEB PORITONS AND SAID TUBES, WHEREBY EACH INTERMEDIATE WEB PORTION CONSISTS OF NON-WOVEN FABRIC WHICH HAS BEN FUSED TO BECOME SOLID, NONFIBROUS AND HOMOGENEOUS.
Claim 2
Independent Claim
139 words
A METHOD OF MANUFACTURING A FABRIC SHEATH FOR A TUBULAR TYPE PLATE OF A LEAD ACID ACCMULATOR IN THE FORM OF A PLURALITY OF PERMEABLE INDIVIDUAL TUBES INTERCONNECTED BE WEB PORTIONS EXTENDING BETWEEN ADJACENT TUBES, IN WHICH THE WALLS OF THE INDIVIDUAL TUBES CONSIST OF NONWOVEN FELT-LIKE FABRIC MADE FROM FIBRES OF AN ACID-RESISTING THERMOPLASTIC RESIN WHICH COMPRISES: SETTING EACH OF TWO LAYERS OF NON-WOVEN FABRIC IN A CORRUGATED FORM BY HEATING THE SAME BETWEEN SUITABLY SHAPED DIES, THEREBY IMPARTING A PERMANENT SET TO THE FIBRES OF THE FABRIC; SUPERIMPOSING THE TWO CORRUGATED LAYERS ONE ON THE OTHER; AND JOINING SAID SUPERIMPOSED LAYERS TOGETHER BY WELDING ALONG OPPOSED PARALLEL STRIPS THEREOF AND THEREBY FORMING SAID WEB PORITONS AND SAID TUBES, WHEREBY EACH INTERMEDIATE WEB PORTION CONSISTS OF NON-WOVEN FABRIC WHICH HAS BEN FUSED TO BECOME SOLID, NONFIBROUS AND HOMOGENEOUS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |