Patent US3272415A successfully refreshed from Google Patents.
US3272415A
Expired / Lapsed
US
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Apparatus for stabilized transport of web-or sheet-like materials
Assignee: Svenska Flaktfabriken AB
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Filing: 1964-03-16
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Granted: 1966-09-13
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Expires: 1984-03-16
Abstract
No abstract record available.
Inventors
- 👤 Wallin Sven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:13
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/24; B65G; B65G51/00; B65G51/02; B65G51/03; F; F26; F26B; F26B13/00; F26B13/10; F26B13/101; F26B13/104; B65H2406/00; B65H2406/10; B65H2406/11; B65H2406/112
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
APPARATUS FOR THE STABILIZED TRANSPORT OF WEB OR SHEET LIKE MATERIAL SUPPORTED BY A GASEOUS MEDIUM, SAID APPARATUS COMPRISING: AT LEAST ONE DISTRIBUTION DUCT FOR SUPPLYING SAID MEDIUM, SAID DUCT HAVING A SURFACE CONFRONTING SAID MATERIAL AND FORMING A GUIDE PLANE THEREFOR, GASEOUS MEDIUM SUPPLY PORTS ARRANGED IN PAIRS IN SAID PLANE AND EACH PORT OF A PAIR DIRECTED OPPOSITELY TO THE OTHER PORT OF THE PAIR, SAID SUPPLY PORTS INCLUDING MEANS WHEREBY SAID MEDIUM IS CAUSED TO FLOW THEREFROM IN STREAMS SUBSTANTIALLY PARALLEL TO SAID TRANSPORT PLANE, EXHAUST PORTS IN SAID GUIDE PLANE SPACED FROM THE ACTING IN CONJUNCTION WITH SAID SUPPLY PORTS TO EXTRACT THE MEDIUM FROM THE SPACE BETWEEN SAID MATERIAL AND SAID PLANE, SAID SUPPLY AND EXHAUST PORTS BEING POSITIONED IN RELATION TO EACH OTHER SO THAT THE MEDIUM SUPPLIED FROM SAID SUPPLY PORTS FORMS A CONTINUOUS FILM OF MEDIUM PRIOR TO BEING EXHAUSTED THROUGH SAID EXHAUST PORTS, AND MEANS TO DIVIDE SAID CONTINUOUS FILM INTO A PLURALITY OF SEPARATE STREAMS UPON BEING EXHAUSTED.
Claim 2
Dependent Claim
168 words
APPARATUS FOR THE STABILIZED TRANSPORT OF WEB OR SHEET LIKE MATERIAL SUPPORTED BY A GASEOUS MEDIUM, SAID APPARATUS COMPRISING: AT LEAST ONE DISTRIBUTION DUCT FOR SUPPLYING SAID MEDIUM, SAID DUCT HAVING A SURFACE CONFRONTING SAID MATERIAL AND FORMING A GUIDE PLANE THEREFOR, GASEOUS MEDIUM SUPPLY PORTS ARRANGED IN PAIRS IN SAID PLANE AND EACH PORT OF A PAIR DIRECTED OPPOSITELY TO THE OTHER PORT OF THE PAIR, SAID SUPPLY PORTS INCLUDING MEANS WHEREBY SAID MEDIUM IS CAUSED TO FLOW THEREFROM IN STREAMS SUBSTANTIALLY PARALLEL TO SAID TRANSPORT PLANE, EXHAUST PORTS IN SAID GUIDE PLANE SPACED FROM THE ACTING IN CONJUNCTION WITH SAID SUPPLY PORTS TO EXTRACT THE MEDIUM FROM THE SPACE BETWEEN SAID MATERIAL AND SAID PLANE, SAID SUPPLY AND EXHAUST PORTS BEING POSITIONED IN RELATION TO EACH OTHER SO THAT THE MEDIUM SUPPLIED FROM SAID SUPPLY PORTS FORMS A CONTINUOUS FILM OF MEDIUM PRIOR TO BEING EXHAUSTED THROUGH SAID EXHAUST PORTS, AND MEANS TO DIVIDE SAID CONTINUOUS FILM INTO A PLURALITY OF SEPARATE STREAMS UPON BEING EXHAUSTED.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |