Safety fence
Abstract
Abstract AN EASILY ERECTBLE FENCE HAVING IMPACT ABSORBING ENERGY DISSIPATING CHARACTERISTICS WICH MAKE THE FENCE PARTICULARLY USEFUL AS A ROADWAY BARRIER. THE FENCE INCLUDES A SHEET OF FENCING MATERIAL WHICH IS FORMED FROM AN INITIAL SHEET HAVING A PLURALITY OF TRANSVERSE ROWS OF LONGITUDINALLY ALIGNED OPENINGS DEFINING LONGITUDINALLY EXTENDING RIBBONS THEREBETWEEN WITH THE INITIAL SHEET BEING REDUCED IN SIZE BY DEFORMING THE RIBBONS TO PROVIDE ALTERNATING LONGITUDINALLY SPACED CRESTS AND TROUGHS THAT ARE INTERCONNECTED BY WEBS HAVING A MULTIPLANAR TORSIONAL DEFORMATION. THE CRESTS ON THE RIBBONS ARE ALIGNED WITH TROUGHS ON ADJACENT RIBBONS TO DEFINE PASSAGES IN THE FENCING MATERIAL THAT ARE PERPENDICULAR TO THE RIBBONS, SO THAT THE FENCE CAN BE ERECTED BY MERELY SLIDING THE FENCING MATERIAL OVER VERTICALLY DISPOSED FANCE POSTS. THE FENCE MAY BE CONSTRUCTED OF A SUITABLE METRALLIC MATERIAL OR OF A SUITABLE THERMOPLASTIC OR THERMOSETTING RESINOUS MATERIAL.
Inventors
- 👤 Raymond W Yancey
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |