US3248773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing dryer belts
Assignee: Huyck Corp
•
Filing: 1964-12-09
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Granted: 1966-05-03
•
Expires: 1984-12-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:55
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/0027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A METHOD OF PRODUCING A BELT SUITABLE FOR USE IN THE DRYING SECTION OF A PAPER MACHINE WHICH COMPRISES: WEAVING A FABRIC OF SYNTHETIC RESIN YARNS THAT CONTRACT UPON INCREASE IN TEMPERATURE AND ELONGATE UPON PASSING FROM A DRY TO A WET CONDITION, AND HEAT TREATING THE YARNS OF WHICH THE FABRIC IS FORMED AT AN UPPERMOST TEMPERATURE WHICH IS HIGH ENOUGH TO CAUSE SUBSTANTIAL SHRINKAGE, SAID TEMPERATURE BEING ABOVE THE HIGHEST TEMPERATURE TO WHICH THE BELT WILL BE SUBJECTED FOR USE BUT BELOW THE TEMPERATURE AT WHICH THE RESIN OF THE YARNS WILL MELT OR BE DAMAGED, AND APPLYING TO THE YARNS DURING SUCH HEAT TREATING STEP A TENSION BELOW ABOUT 0.04 GRAMS PER DENIER SO THAT THE YARNS ARE PERMITTED TO SHRINK TO SUCH AN EXTENT AS TO REMOVE SUBSTANTIALLY ALL RESIDUAL SHRINKAGE THEREFROM.
Claim 2
Independent Claim
136 words
A METHOD OF PRODUCING A BELT SUITABLE FOR USE IN THE DRYING SECTION OF A PAPER MACHINE WHICH COMPRISES: WEAVING A FABRIC OF SYNTHETIC RESIN YARNS THAT CONTRACT UPON INCREASE IN TEMPERATURE AND ELONGATE UPON PASSING FROM A DRY TO A WET CONDITION, AND HEAT TREATING THE YARNS OF WHICH THE FABRIC IS FORMED AT AN UPPERMOST TEMPERATURE WHICH IS HIGH ENOUGH TO CAUSE SUBSTANTIAL SHRINKAGE, SAID TEMPERATURE BEING ABOVE THE HIGHEST TEMPERATURE TO WHICH THE BELT WILL BE SUBJECTED FOR USE BUT BELOW THE TEMPERATURE AT WHICH THE RESIN OF THE YARNS WILL MELT OR BE DAMAGED, AND APPLYING TO THE YARNS DURING SUCH HEAT TREATING STEP A TENSION BELOW ABOUT 0.04 GRAMS PER DENIER SO THAT THE YARNS ARE PERMITTED TO SHRINK TO SUCH AN EXTENT AS TO REMOVE SUBSTANTIALLY ALL RESIDUAL SHRINKAGE THEREFROM.
References Cited (Backward Citations)
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Cited
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US2825958A
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US2821771A
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US3030690A
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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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |