Patent US3232507A successfully refreshed from Google Patents.
US3232507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement in devices for supporting and conveying airborne materials
Assignee: Svenska Flaktfabriken AB
•
Filing: 1963-07-01
•
Granted: 1966-02-01
•
Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 Petersson Hjalte
- 👤 Pehrson Rolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:12
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/74; B03C3/78; B65; B65H; B65H23/00; B65H23/04; B65H23/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A DEVICE FOR SUPPORTING AND CONVEYING MATERIAL WEBS, SAID DEVICE COMPRISING A PLURALITY OF LONGITUDINALLY SPACED AIR SUPPLY BOXES POSITIONED TRANSVERSELY OF THE DIRECTION OF TRAVEL OF SAID WEBS AND HAVING PERFORATED TOP WALLS FOR THE SUPPLY OF TREATING MEDIUM TO THE LOWER SURFACE OF SAID MATERIAL WEB TO SUPPORT SAID WEB, DISCHARGE CHANNELS FORMED BY THE SPACING BETWEEN THE SUPPLY BOXES FOR RECEIVING AND DISCHARGING SAID TREATING MEDIUM, AND ADJUSTABLE THROTTLING MEANS PIVOTALLY MOUNTED ON AN AXIS IN AT LEAST SOME OF SAID DISCHARGE CHANNELS TO STABILIZE THE MATERIAL WEB BY AN INDIVIDUAL ADJUSTMENT OF THE QUANTITY OF DISCHARGE TREATING MEDIUM.
Claim 2
Independent Claim
102 words
A DEVICE FOR SUPPORTING AND CONVEYING MATERIAL WEBS, SAID DEVICE COMPRISING A PLURALITY OF LONGITUDINALLY SPACED AIR SUPPLY BOXES POSITIONED TRANSVERSELY OF THE DIRECTION OF TRAVEL OF SAID WEBS AND HAVING PERFORATED TOP WALLS FOR THE SUPPLY OF TREATING MEDIUM TO THE LOWER SURFACE OF SAID MATERIAL WEB TO SUPPORT SAID WEB, DISCHARGE CHANNELS FORMED BY THE SPACING BETWEEN THE SUPPLY BOXES FOR RECEIVING AND DISCHARGING SAID TREATING MEDIUM, AND ADJUSTABLE THROTTLING MEANS PIVOTALLY MOUNTED ON AN AXIS IN AT LEAST SOME OF SAID DISCHARGE CHANNELS TO STABILIZE THE MATERIAL WEB BY AN INDIVIDUAL ADJUSTMENT OF THE QUANTITY OF DISCHARGE TREATING MEDIUM.
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |