US3087254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for drying solvent-containing materials while recovering vaporized solvent
Assignee: Individual
•
Filing: 1960-02-04
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Granted: 1963-04-30
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Expires: 1980-02-04
Abstract
No abstract record available.
Inventors
- 👤 Kubodera Hisayoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:03
CPC Classifications
F; F26; F26B; F26B25/00; F26B25/005; F26B25/006; F26B13/00; F26B13/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
84 words
IN A METHOD OF DRYING SOLVENT CONTAINING WEB MATERIALS COMPRISING PASSING SOLVENT CONTAINING WEB MATERIAL UPWARDLY INTO A DRYING ZONE, CONCURRENTLY THEREWITH INTRODUCING HEATED DRYING AIR DOWNWARDLY INTO SAID DRYING ZONE, REMOVING SAID DRYING AIR FROM SAID DRYING ZONE, COOLING A PORTION OF THE REMOVED DRYING AIR THEREBY CONDENSING THE SOLVENT FROM THE DRYING AIR, SEPARATING THE CONDENSED SOLVENT FROM THE DRYING AIR, RE-HEATING THE DRYING AIR AND RECYCLING THE HEATED DRYING AIR TO THE DRYING ZONE, COMPRESSING THE PORTION OF THE REMOVED DRYING
Claim 2
Dependent Claim
84 words
IN A METHOD OF DRYING SOLVENT CONTAINING WEB MATERIALS COMPRISING PASSING SOLVENT CONTAINING WEB MATERIAL UPWARDLY INTO A DRYING ZONE, CONCURRENTLY THEREWITH INTRODUCING HEATED DRYING AIR DOWNWARDLY INTO SAID DRYING ZONE, REMOVING SAID DRYING AIR FROM SAID DRYING ZONE, COOLING A PORTION OF THE REMOVED DRYING AIR THEREBY CONDENSING THE SOLVENT FROM THE DRYING AIR, SEPARATING THE CONDENSED SOLVENT FROM THE DRYING AIR, RE-HEATING THE DRYING AIR AND RECYCLING THE HEATED DRYING AIR TO THE DRYING ZONE, COMPRESSING THE PORTION OF THE REMOVED DRYING
Claim 3
Dependent Claim
115 words
IN COMBINATION AN APPARATUS FOR DRYING SOLVENT CONTAINING WEB MAERIAL COMPRISING AN ELONGATED VERTICAL DRYING CHAMBER, SAID CHAMBER HAVING AN INLET PORT AT THE BOTTOM THEREOF FOR INTRODUCTION OF THE WEB MATERIAL, MEANS FOR SUPPLY DRYING AIR UNDER PRESSURE INTO THE UPPER PORTION OF SAID DRYING CHAMBER, MEANS FOR REMOVING THE DRYING AIR NEAR SUBSTANTIALLY THE BOTTOM PORTION OF SAID DRYING AIR NEAR SUBSTANTIALLY THE BOTTOM PORPORT FOR PROVIDING INTRODUCTION OF COMPRESSED AIR TO SEAL SAID PORT, MEANS FOR REMOVING THE SOLVENT CONTAINED IN THE DRYING AIR, MEANS FOR COMPRESSING A PORTION OF THE AIR FOR INTRODUCTION INTO MEANS NEAR THE INLET PORT AND MEANS FOR COMPRESSING THE REMAINDER FOR RECYCLING INTO THE DRYING CHAMBER.
Claim 4
Dependent Claim
115 words
IN COMBINATION AN APPARATUS FOR DRYING SOLVENT CONTAINING WEB MAERIAL COMPRISING AN ELONGATED VERTICAL DRYING CHAMBER, SAID CHAMBER HAVING AN INLET PORT AT THE BOTTOM THEREOF FOR INTRODUCTION OF THE WEB MATERIAL, MEANS FOR SUPPLY DRYING AIR UNDER PRESSURE INTO THE UPPER PORTION OF SAID DRYING CHAMBER, MEANS FOR REMOVING THE DRYING AIR NEAR SUBSTANTIALLY THE BOTTOM PORTION OF SAID DRYING AIR NEAR SUBSTANTIALLY THE BOTTOM PORPORT FOR PROVIDING INTRODUCTION OF COMPRESSED AIR TO SEAL SAID PORT, MEANS FOR REMOVING THE SOLVENT CONTAINED IN THE DRYING AIR, MEANS FOR COMPRESSING A PORTION OF THE AIR FOR INTRODUCTION INTO MEANS NEAR THE INLET PORT AND MEANS FOR COMPRESSING THE REMAINDER FOR RECYCLING INTO THE DRYING CHAMBER.
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) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |