US3256558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuously drawing sheetings simultaneously in a longitudinal and a transverse direction
Assignee: Hoechst AG
•
Filing: 1964-08-18
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Granted: 1966-06-21
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Expires: 1984-08-18
Abstract
No abstract record available.
Inventors
- 👤 Andersen Heinz-Erhardt
- 👤 Koch Dieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:29
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/02; B29C55/10; B29C55/12; B29C55/16; B29C55/165
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
AN APPARATUS FOR CONTINUOUSLY DRAWING HEATED SHEETINGS OF THERMOPLASTIC MATERIAL SIMULTANEOUSLY IN A LONGITUDINAL AND A TRANSVERSE DIRECTION BY MEANS OF A COMBINATION OF TWO ROLLERS SYSTEMS RUNNING AT DIFFERENT SPEEDS AND A VICE CLAMP SYSTEM, THE CLAMPS BEING CONVEYED IN THE DRAWING ZONE BY THE SHEETING, WHICH COMPRISES TWO ENDLESS PROFILE BARS WHICH ENCLOSE BETWEEN THEM A NARROW PASSAGE FOR THE SHEETING, THE BOUNDARIES OF THIS PASSAGE BEING PARALLEL TO THE DIRECTION IN WHICH THE SHEETING MOVES, A TRAPEZOIDALLY ENLARGED PASSAGE FOR THE SHEETING WHICH FOLLOWS THE FIRST-MENTIONED PASSAGE AND IS, IN TURN, FOLLOWED BY A WIDER PASSAGE FOR THE SHEETING OF WHICH THE BOUNDARIES ARE PARALLEL TO THE DIRECTION IN WHICH THE SHEETING MOVES, VICE CLAMPS HAVING ROLLERS WHICH CIRCULATE ON THE PROFILE BARS AND WHICH ARE DRIVEN OUTSIDE THE TRAPEZOIDAL PASSAGE BY ENDLESS V-BELTS WHICH ARE DISPOSED SO AS TO SLIDE OVER THE CLAMP ROLLERS SO THAT THEY CAN MOVE AT DOUBLE THE CLAMP SPEED OWING TO THE TRAVEL OF THE ROLLERS AGAINST THE PROFILE BAR, AND A CLAMP STORAGE ZONE ON SAID PROFILE BARS ADJACENT SAID NARROW PASSAGE IN WHICH ZONE CIRCULATING CLAMPS ARE ACCUMULATED DURING OPERATION, SAID CLAMPS IN SAID STORAGE ZONE BEING OUT OF DRIVE CONTACT WITH SAID BELTS.
Claim 2
Independent Claim
205 words
AN APPARATUS FOR CONTINUOUSLY DRAWING HEATED SHEETINGS OF THERMOPLASTIC MATERIAL SIMULTANEOUSLY IN A LONGITUDINAL AND A TRANSVERSE DIRECTION BY MEANS OF A COMBINATION OF TWO ROLLERS SYSTEMS RUNNING AT DIFFERENT SPEEDS AND A VICE CLAMP SYSTEM, THE CLAMPS BEING CONVEYED IN THE DRAWING ZONE BY THE SHEETING, WHICH COMPRISES TWO ENDLESS PROFILE BARS WHICH ENCLOSE BETWEEN THEM A NARROW PASSAGE FOR THE SHEETING, THE BOUNDARIES OF THIS PASSAGE BEING PARALLEL TO THE DIRECTION IN WHICH THE SHEETING MOVES, A TRAPEZOIDALLY ENLARGED PASSAGE FOR THE SHEETING WHICH FOLLOWS THE FIRST-MENTIONED PASSAGE AND IS, IN TURN, FOLLOWED BY A WIDER PASSAGE FOR THE SHEETING OF WHICH THE BOUNDARIES ARE PARALLEL TO THE DIRECTION IN WHICH THE SHEETING MOVES, VICE CLAMPS HAVING ROLLERS WHICH CIRCULATE ON THE PROFILE BARS AND WHICH ARE DRIVEN OUTSIDE THE TRAPEZOIDAL PASSAGE BY ENDLESS V-BELTS WHICH ARE DISPOSED SO AS TO SLIDE OVER THE CLAMP ROLLERS SO THAT THEY CAN MOVE AT DOUBLE THE CLAMP SPEED OWING TO THE TRAVEL OF THE ROLLERS AGAINST THE PROFILE BAR, AND A CLAMP STORAGE ZONE ON SAID PROFILE BARS ADJACENT SAID NARROW PASSAGE IN WHICH ZONE CIRCULATING CLAMPS ARE ACCUMULATED DURING OPERATION, SAID CLAMPS IN SAID STORAGE ZONE BEING OUT OF DRIVE CONTACT WITH SAID BELTS.
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |