US3082138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of sheet material
Assignee: LINDEMAN NAUR
•
Filing: 1958-09-05
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Granted: 1963-03-19
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Expires: 1978-09-05
Abstract
No abstract record available.
Inventors
- 👤 Hjelt Heikki Olavi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:23
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/593; B; B05; B05C; B05C19/00; B05C19/001; B05C19/002; D04H1/64; D04H1/70; D04H1/72; D04H1/732; D04H1/736; D04H1/74; D21; D21H; D21H27/00; D21H5/00; D21H5/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
IN A METHOD OF FORMING A SHEET MATERIAL COMPRISING SUPERPOSED LAYERS EACH CONSISTING OF FIBROUS MATERIAL HELD TOGETHER BY A BINDING MEDIUM, THE STEPS OF FORMING A FIRST LAYER BY COATING A FORMING SURFACE WITH THE BINDING MEDIUM, SETTING UP AN ELECTROSTATIC FIELD BETWEEN THE FORMING SURFACE AND FEED APPARATUS FOR THE FIBROUS MATERIAL WHEREBY THE FIBROUS MATERIAL IS TRANSFERRED TO THE FORMING SURFACE, AND FLATTENING THE FIBERS OF THE FIBROUS MATERIAL INTO THE BINDING MEDIUM; FORMING SECOND AND SUBSEQUENT LAYERS UPON THE PRECEDING LAYER BY COATING THE SAID PRECEDING LAYER WITH BINDING MEDIUM, SETTING UP A ELECTROSTATIC FIELD TO TRANSFER FIBROUS MATERIAL FROM FEED APPARATUS TO THE SAID PRECEDING LAYER AND FLATTENING THE FIBERS OF THE FIBROUS MATERIAL INTO THE BINDING MEDIUM, THE FIBRES OF A PLURALITY OF THE LAYERS BEING FLATTENED INTO POSITION, IN WHICH THEY ARE ALIGNED IN PREDETERMINED DIRECTION, THE FIBRES OF SUCCESSIVE LAYERS OF THE PLURALITY HAVING THE FLATTENED AND ALIGNED FIBERS BEING ALIGNED IN DIFFERENT DIRECTIONS; AND REMOVING THE MATERIAL FROM THE FORMING SURFACE.
Claim 2
Dependent Claim
170 words
IN A METHOD OF FORMING A SHEET MATERIAL COMPRISING SUPERPOSED LAYERS EACH CONSISTING OF FIBROUS MATERIAL HELD TOGETHER BY A BINDING MEDIUM, THE STEPS OF FORMING A FIRST LAYER BY COATING A FORMING SURFACE WITH THE BINDING MEDIUM, SETTING UP AN ELECTROSTATIC FIELD BETWEEN THE FORMING SURFACE AND FEED APPARATUS FOR THE FIBROUS MATERIAL WHEREBY THE FIBROUS MATERIAL IS TRANSFERRED TO THE FORMING SURFACE, AND FLATTENING THE FIBERS OF THE FIBROUS MATERIAL INTO THE BINDING MEDIUM; FORMING SECOND AND SUBSEQUENT LAYERS UPON THE PRECEDING LAYER BY COATING THE SAID PRECEDING LAYER WITH BINDING MEDIUM, SETTING UP A ELECTROSTATIC FIELD TO TRANSFER FIBROUS MATERIAL FROM FEED APPARATUS TO THE SAID PRECEDING LAYER AND FLATTENING THE FIBERS OF THE FIBROUS MATERIAL INTO THE BINDING MEDIUM, THE FIBRES OF A PLURALITY OF THE LAYERS BEING FLATTENED INTO POSITION, IN WHICH THEY ARE ALIGNED IN PREDETERMINED DIRECTION, THE FIBRES OF SUCCESSIVE LAYERS OF THE PLURALITY HAVING THE FLATTENED AND ALIGNED FIBERS BEING ALIGNED IN DIFFERENT DIRECTIONS; AND REMOVING THE MATERIAL FROM THE FORMING SURFACE.
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |