Apparatus and method for manufacture of fabric-like pile products
Abstract
Abstract METHOD AND APPARATUS FOR PRODUCING PILE PRODUCTS USEFUL IN THE SAME MANNER AS CONVENTIONAL WOVEN PILE FABRICS OR, WITH FURTHER PROCESSING OR CONVERSION STEPS, USEFUL AS HOOK OR LOOP ELEMENTS OF SEPARABLE FASTNERES SIMILAR TO THE WOVEN FASTENERS DISCLOSED IN U.S. PATS. 2,717,437 AND 3,009,235 TO DE MESTRAL. INSTEAD OF WEAVING, PILE STRANDS ARE LAID IN PARALLEL SPACED RELATION WITH ONE ANOTHER IN A SINGLE PLANE, THE STRANDS ARE ENCAPSULATED IN A MATRIX OF LOW-MELTING-POINT METAL ALLOY WHICH IS EXTRUDED WITH THE STRANDS AS A THIN FLAT SHEET OF DUCTILE METAL WITH THE STRANDS ENCLOSED THEREIN. THE MATRIX IS THEN CORRUGATED TO SHAPE AND HOLD THE ENCLOSED STRANDS IN DESIRED PILE CONFORMATION, PORTIONS ONLY OF EACH STRAND ARE EXPOSED BY REMOVING A PART OF THE MATRIX, THE EXPOSED PORTIONS OF THE STRANDS ARE THEN SECURED TO A SEPARATELY FORMED BASE SHEET MATERIAL AND FINALLY THE REMAINDER OF THE MATRIX IS REMOVED.
Inventors
- 👤 George H Erb
Bibliographic Details
Claims Analysis
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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 |