Filament tape winding
Abstract
Abstract A METHOD FOR THE FABRICATION OF LAMINATED PLASTIC STRUCTURE USING TAPE WINDING TECHNIQUES. A COMPOSITE TAPE MATERIAL IS UTILIZED IN THE PRESENT WINDING PROCESS COMPRISING AN INTERMEDIATE LAYER OF RESIN IMPREGNATED REINFORCING MATERIAL IMPOSED BETWEEN TWO LAYERS OF A SUBSTRATE MATERIAL. THE METHOD OF THE PRESENT INVENTION COMPRISES THE STEPS OF IMPOSING A CONTINUOUS STRIP OF RESIN IMPREGNATED REINFORCING MATERIAL BETWEEN TWO CONTINUOUS STRIPS OF SUBSTRATE MATERIAL THEREBY FORMING A COMPOSITE TAPE; WINDING THE COMPOSITE TAPE AROUND A MANDREL UNTIL THE SURFACE OF THE MANDREL IS COVERED THEN CURING THE COMPOSITE TAPE. IN THE PREFERRED EMBODIMENT OF THE INVENTION, THE SUBSTRATE MATERIAL IS POLYSTYENE FOAM AND REINFORCING MATERIAL IS FIBERGLASS IMPREGNATED WITH A CURABLE POLYURETHANE ELASTOMER.
Inventors
- 👤 Edwin L Crandal
- 👤 Charles E Kaempen
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |