US2686142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing corrugated microporous separators of hard rubber compositionmaterial
Assignee: American Hard Rubber Co
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Filing: 1951-05-01
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Granted: 1954-08-10
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Expires: 1971-05-01
Abstract
No abstract record available.
Inventors
- 👤 George L Cory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:51
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/40; H01M50/463; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1023; Y10T156/1039; Y10T156/1041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
THE METHOD OF MANUFACTURING CORRUGATED MICROPOROUS SEPARATORS FOR USE IN ELECTROLYTIC CELLS, COMPRISING THE STEPS OF PREPARING SHEETS OF UNCURED HARD RUBBER COMPOSITION OF A TYPE SUITABLE FOR MAKING SUCH SEPARATORS AND WHICH IS DEFORMABLE UNDER PRESSURE, INTERLEAVING BETWEEN LAYERS OF SAID SHEETS ALTERNATE LAYERS OF CORRUGATED SHEET METAL WHICH IS PROOF AGAINST RAPID CORROSION, WHICH HAS CORRUGATIONS OF A DEPTH SUBSTANTIALLY GREATER THAN THE CORRUGATIONS TO BE FORMED THEREBY IN THE MICROPOROUS SEPARATORS AND WHICH WILL MAINTAIN ITS SHAPE UNDER CONDITIONS ENCOUNTERED IN SUBSEQUENT VULCANIZING, TO FORM AN ASSEMBLY COMPRISING ALTERNATE LAYERS OF SAID RUBBER COMPOSITION AND OF SAID CORRUGATED SHEET METAL, APPLYING SUFFICIENT PRESSURE TO SAID ASSEMBLY IN A DIRECTION PERPENDICULAR TO SAID ALTERNATE LAYERS TO CAUSE A DEFORMATION OF THE LAYERS OF RUBBER COMPOSITION BY THE CORRUGATIONS OF SAID CORRUGATED SHEET METAL BUT INSUFFICIENT PRESSURE TO CAUSE SAID RUBBER COMPOSITION TO CONFORM COMPLETELY TO THE SHAPE OF THE CORRUGATIONS OF SAID SHEET METAL, SO AS TO LEAVE VOIDS AT EACH CORRUGATION BETWEEN THE CORRUGATED MATERIAL AND THE RUBBER COMPOSITION MATERIAL, WET VULCANIZING THE HARD RUBBER COMPOSITION OF SAID ASSEMBLY TO FORM MICROPOROUS SEPARATORS, AND THEREAFTER REMOVING SAID CORRUGATED METAL FROM BETWEEEN SAID SEPARATORS.
Claim 2
Independent Claim
196 words
THE METHOD OF MANUFACTURING CORRUGATED MICROPOROUS SEPARATORS FOR USE IN ELECTROLYTIC CELLS, COMPRISING THE STEPS OF PREPARING SHEETS OF UNCURED HARD RUBBER COMPOSITION OF A TYPE SUITABLE FOR MAKING SUCH SEPARATORS AND WHICH IS DEFORMABLE UNDER PRESSURE, INTERLEAVING BETWEEN LAYERS OF SAID SHEETS ALTERNATE LAYERS OF CORRUGATED SHEET METAL WHICH IS PROOF AGAINST RAPID CORROSION, WHICH HAS CORRUGATIONS OF A DEPTH SUBSTANTIALLY GREATER THAN THE CORRUGATIONS TO BE FORMED THEREBY IN THE MICROPOROUS SEPARATORS AND WHICH WILL MAINTAIN ITS SHAPE UNDER CONDITIONS ENCOUNTERED IN SUBSEQUENT VULCANIZING, TO FORM AN ASSEMBLY COMPRISING ALTERNATE LAYERS OF SAID RUBBER COMPOSITION AND OF SAID CORRUGATED SHEET METAL, APPLYING SUFFICIENT PRESSURE TO SAID ASSEMBLY IN A DIRECTION PERPENDICULAR TO SAID ALTERNATE LAYERS TO CAUSE A DEFORMATION OF THE LAYERS OF RUBBER COMPOSITION BY THE CORRUGATIONS OF SAID CORRUGATED SHEET METAL BUT INSUFFICIENT PRESSURE TO CAUSE SAID RUBBER COMPOSITION TO CONFORM COMPLETELY TO THE SHAPE OF THE CORRUGATIONS OF SAID SHEET METAL, SO AS TO LEAVE VOIDS AT EACH CORRUGATION BETWEEN THE CORRUGATED MATERIAL AND THE RUBBER COMPOSITION MATERIAL, WET VULCANIZING THE HARD RUBBER COMPOSITION OF SAID ASSEMBLY TO FORM MICROPOROUS SEPARATORS, AND THEREAFTER REMOVING SAID CORRUGATED METAL FROM BETWEEEN SAID SEPARATORS.
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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) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |