Patent US2740741A successfully refreshed from Google Patents.
US2740741A
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Stretching and laminating thermostretchable film
Assignee: Goodyear Tire and Rubber Co
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Filing: 1953-09-15
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Granted: 1956-04-03
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Expires: 1973-09-15
Abstract
No abstract record available.
Inventors
- 👤 Paul J Vaughan
- 👤 Norman W Hockett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:17
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31844; Y10T428/31848
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
THE METHOD OF STRETCHING AND LAMINATING THERMOSTRETCHABLE FILM TO SHEET MATERIAL, WHICH COMPRISES SUPPLYING ADHESIVE TO A SURFACE OF AT LEAST ONE OF THEM, MOVING THE FILM AND THE SHEET THROUGH THE BITE OF PRESSURE ROLLS WHERE THE FILM IS LAMINATED TO THE SHEET BY THE ADHESIVE, SUPPLYING THE SHEET TO THE ROLLS AT THE RATE THE LAMINATE IS DELIVERED FROM THE ROLLS,AND SUPPLYING THE FILM TO THE ROLLS OVER A FEED ROLL WHICH HAS A SLOWER SURFACE SPEED THAN SAID PRESSURE ROLLS, ANDSOFTENING THE FILM BY HEAT AS IT ENTERS THE BITE OF THE PRESSURE ROLLS AND STRECHING IT AS IT PASSES FROM THE FEED ROLL TO TH PRESSRE ROLLS WHEREBY IT IS STRETCHED SUBSTANTIALLY SIMULTANEOUSLY WITH THE LAMINATION.
Claim 2
Independent Claim
120 words
THE METHOD OF STRETCHING AND LAMINATING THERMOSTRETCHABLE FILM TO SHEET MATERIAL, WHICH COMPRISES SUPPLYING ADHESIVE TO A SURFACE OF AT LEAST ONE OF THEM, MOVING THE FILM AND THE SHEET THROUGH THE BITE OF PRESSURE ROLLS WHERE THE FILM IS LAMINATED TO THE SHEET BY THE ADHESIVE, SUPPLYING THE SHEET TO THE ROLLS AT THE RATE THE LAMINATE IS DELIVERED FROM THE ROLLS,AND SUPPLYING THE FILM TO THE ROLLS OVER A FEED ROLL WHICH HAS A SLOWER SURFACE SPEED THAN SAID PRESSURE ROLLS, ANDSOFTENING THE FILM BY HEAT AS IT ENTERS THE BITE OF THE PRESSURE ROLLS AND STRECHING IT AS IT PASSES FROM THE FEED ROLL TO TH PRESSRE ROLLS WHEREBY IT IS STRETCHED SUBSTANTIALLY SIMULTANEOUSLY WITH THE LAMINATION.
References Cited (Backward Citations)
US2286569A
Cited
US2259362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |