Patent US3297221A successfully refreshed from Google Patents.
US3297221A
Expired / Lapsed
US
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Transport mechanism for flexible materials
Assignee: International Business Machines Corp
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Filing: 1964-08-10
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Granted: 1967-01-10
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Expires: 1984-08-10
Abstract
No abstract record available.
Inventors
- 👤 Licht Lazar
- 👤 David E Brickl
- 👤 Bendix H Indergard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:38
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/56; G11B15/18; G11B15/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A TRANSPORT MECHANISM FOR FLEXIBLE STRIP MATERIAL COMPRISING, IN COMBINATION: TWO ESSENTIALLY PARALLEL PLATES THAT ARE SPACED APART FROM EACH OTHER BY A DISTANCE THAT SLIGHTLY EXCEEDS THE WIDTH OF THE STRIP OF MATERIAL TO BE TRANSPORTED; MATERIAL GUIDING MEANS LOCATED BETWEEN THE PLATES FOR CONTROLLING THE POSITION OF THE OPEN END OF A LOOP OF MATERIAL EXTENDING INTO THE MECHANISM SUCH THAT THE OPENING FORMS A RELATIVELY SMALL GAP; AND MEANS FOR APPLYING FLUID UNDER PRESSURE TO A CHAMBER FORMED BY THE PLATES AND THE LOOP OF MATERIAL THAT IS WITHIN THE MECHANISM TO CAUSE A LOOP OF MATERIAL TO BE FORMED IN THE MECHANISM, WHERE SAID PLATE CONSTITUTE THE SOLE CONFINING MEANS FOR SAID LOOP.
Claim 2
Dependent Claim
117 words
A TRANSPORT MECHANISM FOR FLEXIBLE STRIP MATERIAL COMPRISING, IN COMBINATION: TWO ESSENTIALLY PARALLEL PLATES THAT ARE SPACED APART FROM EACH OTHER BY A DISTANCE THAT SLIGHTLY EXCEEDS THE WIDTH OF THE STRIP OF MATERIAL TO BE TRANSPORTED; MATERIAL GUIDING MEANS LOCATED BETWEEN THE PLATES FOR CONTROLLING THE POSITION OF THE OPEN END OF A LOOP OF MATERIAL EXTENDING INTO THE MECHANISM SUCH THAT THE OPENING FORMS A RELATIVELY SMALL GAP; AND MEANS FOR APPLYING FLUID UNDER PRESSURE TO A CHAMBER FORMED BY THE PLATES AND THE LOOP OF MATERIAL THAT IS WITHIN THE MECHANISM TO CAUSE A LOOP OF MATERIAL TO BE FORMED IN THE MECHANISM, WHERE SAID PLATE CONSTITUTE THE SOLE CONFINING MEANS FOR SAID LOOP.
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) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |