Process for welding two pieces of plastic by friction of one against the other and apparatus for carrying out this process
Abstract
Abstract PROCESS FOR WELDING TWO PIECES OF PLASTIC BY RUBBING THE PIECES ONE AGAINST THE OTHER, IN WHICH ONE OF THE PIECES IS DRIVEN IN A VIBRATORY MOVEMENT PARALLEL TO THE OTHER PIECE, AND DIN WHICH THE TWO PIECES BEING APPLIED ONE AGAINST THE OTHER WITH A CONSTANT PRESSURE DURING THE ENTIRE DURATION OF THE VIBRATORY MOVEMENT. THE DURATION OF THE VIBRATORY MOVEMENT IS ADJUSTED IN PROPORTION TO THE THICKNESS OF THE PIECE TO BE WELDED, THE FREQUENCY OF THE MOVEMENT, AND THE PRESSURE. APPARATUS FOR CARRYING OUT THIS PROCESS INCLUDES AN ELECTRIC MOTOR CARRYING AN ECCENTRIC AT THE END OF A SHAFT DRIVING FOR VIBRATIONALLY A METALLIC PIECE HAVING A ROUGHENED FACE FOR ENGAGING AND MOVING ONE PIECE OF PLASTIC AGAINST THE OTHER.
Inventors
- 👤 Henri Brenneisen
Bibliographic Details
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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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |