US3220056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of sheet materials
Assignee: Individual
•
Filing: 1959-11-27
•
Granted: 1965-11-30
•
Expires: 1979-11-27
Abstract
No abstract record available.
Inventors
- 👤 Richard R Walton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:12
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/12; B31F1/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A DEVICE FOR LENGTHWISE CONDENSING OF THE TRAVELING WEB IN WHICH SAID WEB IS PRESSED BY MEANS OF A SMOOTH GROOVED SHOE AGAINST THE SURFACE OF A MAIN ROLL HAVING A SERIES OF SIDE-BY-SIDE RIBS PROVIDED WITH FRICTIONAL WEB-GRIPPING SURFACES AND IS DISCHARGED FROM SAID ROLL BY A TAKEOFF COMB MEANS INTERSECTING SAID ROLL, THE IMPROVEMENT WHICH COMPRISES PROVIDING A ROTATABLE GROOVED BACKUP PRESSING ROLL CLOSELY ADJACENT THE LEADING EDGE OF SAID SHOE, SID BACKUP ROLL BEING PROVIDED WITH A SERIES OF ALTERNATING RIBS AND GROOVES, THE BACKUP ROLL SERVING TO PRESS SAID WEB AT LEAST PARTIALLY INTO THE GROOVES OF SAID MAIN ROLL, AND MEANS OF COMPRESSIBLE MATERIAL MOUNTED IN AT LEAST SOME OF THE GROOVES OF SAID BACKUP ROLL TO PRESS PORTIONS OF SAID WEB AGAINST SAID WEB-GRIPPING SURFACES.
Claim 2
Dependent Claim
132 words
IN A DEVICE FOR LENGTHWISE CONDENSING OF THE TRAVELING WEB IN WHICH SAID WEB IS PRESSED BY MEANS OF A SMOOTH GROOVED SHOE AGAINST THE SURFACE OF A MAIN ROLL HAVING A SERIES OF SIDE-BY-SIDE RIBS PROVIDED WITH FRICTIONAL WEB-GRIPPING SURFACES AND IS DISCHARGED FROM SAID ROLL BY A TAKEOFF COMB MEANS INTERSECTING SAID ROLL, THE IMPROVEMENT WHICH COMPRISES PROVIDING A ROTATABLE GROOVED BACKUP PRESSING ROLL CLOSELY ADJACENT THE LEADING EDGE OF SAID SHOE, SID BACKUP ROLL BEING PROVIDED WITH A SERIES OF ALTERNATING RIBS AND GROOVES, THE BACKUP ROLL SERVING TO PRESS SAID WEB AT LEAST PARTIALLY INTO THE GROOVES OF SAID MAIN ROLL, AND MEANS OF COMPRESSIBLE MATERIAL MOUNTED IN AT LEAST SOME OF THE GROOVES OF SAID BACKUP ROLL TO PRESS PORTIONS OF SAID WEB AGAINST SAID WEB-GRIPPING SURFACES.
References Cited (Backward Citations)
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FR428862A
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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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |