Building set for the sheeting of service ditches
Abstract
Abstract THIS DISCLOSURE RELATES TO SHEETING FOR SHORING DITCHES AND SIMILAR EMBANKMENTS. IN LIEU OF THE USUAL ARRANGEMENT IN WOODEN TIMBERS, OR IN THE CASE OF PERMANENT SHEETING, STEEL PALTES, EACH WALL OF THE SHEETING IS FORMED OF HOLLOW STEEL SECTIONS JOINED TOGETHER WITH THERE BEING DISPOSED AT REGULAR INTERVALS GUIDE SUPPORTS, EACH OF WHICH INCLUDES ONE LEG WHICH IS RECEIVABLE IN THE SHEETING AND A SECOND LEG WHICH PROJECTS INTO THE DITCH AND HAS RECEIVED THEREIN SHOES OF TIGHTENING DEVICESS. THE GUIDE SUPPORTS ARE LONGER THAN THE SHEETING AND PROJECT THEREBELOW SO AS TO PROVIDE SUPPORTT FOR THE SHEETING AND TO PERMIT THE ADDIYIONAL DRIVING OF THE SHEETING AS EXCAVATION PROCEEDS WITHOUT RELEASING THE SUPPORTING PRESSURE ON THE SHEETING.
Inventors
- 👤 Josef Krings
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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |