US3350484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making battery separators and the like
Assignee: Riegel Paper Corp
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Filing: 1965-03-01
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Granted: 1967-10-31
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Expires: 1985-03-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Donald G Magill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:00
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/22; B29C53/24; B29C53/28; B29C53/285; H; H01; H01M; H01M50/00; H01M50/40; H01M50/403; H01M50/406; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
74 words
THE METHOD OF MAKING CORRUGATED WEB MATERIAL, WHICH COMPRISES (A) SUPPLYING AN UNCURED WEB MATERIAL ICLUDING A CURABLE HARDENING COMPONENT, (B) IMPARTING RIB CORRUGATIONS TO SAID WEB AT SPACED INTERVALS, (C) CONVEYING THE CORRUGATED WEB THROUGH A HEATING ZONE, THEREBY EFFECTING AT LEAST PARTIAL CURING OF THE CURABLE HARDENING COMPONENT, (D) RELEASABLY HOLDING THE CORRUGATED WEB DURING PARTIAL CURING BY VACUUM MANS APLIED TO THE FLAT SURFACE OF THE WEB OPPOSITE THE RAISED RIBS.
Claim 2
Independent Claim
74 words
THE METHOD OF MAKING CORRUGATED WEB MATERIAL, WHICH COMPRISES (A) SUPPLYING AN UNCURED WEB MATERIAL ICLUDING A CURABLE HARDENING COMPONENT, (B) IMPARTING RIB CORRUGATIONS TO SAID WEB AT SPACED INTERVALS, (C) CONVEYING THE CORRUGATED WEB THROUGH A HEATING ZONE, THEREBY EFFECTING AT LEAST PARTIAL CURING OF THE CURABLE HARDENING COMPONENT, (D) RELEASABLY HOLDING THE CORRUGATED WEB DURING PARTIAL CURING BY VACUUM MANS APLIED TO THE FLAT SURFACE OF THE WEB OPPOSITE THE RAISED RIBS.
Claim 3
Dependent Claim
106 words
APPARATUS FOR MAKING BATTERY SEPARATORS OR THE LIKE, COMPRISING (A) MEANS FOR SUPPLYING UNCURED BATTERY SEPARATOR WEB MATERIAL, (B) A PAIR OF CORRUGATING ROLLS ARRANGED TO ACT ON OPPOSITE SIDES OF THE WEB AND FORM SPACED RIBS INTERCONNECTED BY FLAT WEB SECTIONS, (C) A VACUUM CONVEYOR POSITIONED TO RECEIVE AND RELEASABLE HOLD THE FLAT WEB SECTIONS OF THE RIBBED WEB, (D) MEANS FOR HEATING THE WEB WHILE IT IS CONVEYED BY SAID VACUUM CONVEYOR, AND (E) MEANS ADAPTED TO ENGAGE THE WEB ON THE EXIT SIDE OF THE CORRUGATING ROLLS FOR ELONGATING THE RIBBED WEB TO INCREASE THE DISTANCE BETWEEN RIBS AND REDUCE THE HEIGHT THEREOF.
Claim 4
Dependent Claim
106 words
APPARATUS FOR MAKING BATTERY SEPARATORS OR THE LIKE, COMPRISING (A) MEANS FOR SUPPLYING UNCURED BATTERY SEPARATOR WEB MATERIAL, (B) A PAIR OF CORRUGATING ROLLS ARRANGED TO ACT ON OPPOSITE SIDES OF THE WEB AND FORM SPACED RIBS INTERCONNECTED BY FLAT WEB SECTIONS, (C) A VACUUM CONVEYOR POSITIONED TO RECEIVE AND RELEASABLE HOLD THE FLAT WEB SECTIONS OF THE RIBBED WEB, (D) MEANS FOR HEATING THE WEB WHILE IT IS CONVEYED BY SAID VACUUM CONVEYOR, AND (E) MEANS ADAPTED TO ENGAGE THE WEB ON THE EXIT SIDE OF THE CORRUGATING ROLLS FOR ELONGATING THE RIBBED WEB TO INCREASE THE DISTANCE BETWEEN RIBS AND REDUCE THE HEIGHT THEREOF.
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |