Expansion joint
Abstract
Abstract AN EXPANSION JOINT FOR ROAD SECTIONS JOINING WITH A BRIDGE, OR WITH ANOTHER ROAD SECTION ETC. FORMING A STRIPLIKE BAND FROM RESILIENT MATERIALS, SUCH AS A RUBBER BAND HAVING INDENTATIONS AT THE LOWER SURFACE THEREOF WHICH ARE ARRANGED PARALLEL TO THE SIDE JOINTS AND SUPPORTS MEANS INCLUDING SUPPORT RIBS BEING ARRANGED ON SUPPORTING PLATES, SAID RIBS LYING IN ENGAGEMENT WITH SAID INDENTATIONS. THE SUPPORT MEANS MAY COMPRISE SUPPORT SHOULDERS HAVING PROJECTIONS WHICH ENGAGE WITH THE RESILIENT BAND AS WELL AS SUPPORT RIBS TO SECURE THE CAST FILLING MATERIAL USED FOR THE EXCISIONS OF THE DRIVE WAY SECTIONS ADJACENT TO THE RESILIENT BAND. PREFERABLY THE SUPPORT SHOULDERS REST ON A SHOCK ABSORBING LAYER OR PLATE OF PLASTICS MATERIAL AND THE RESILIENT BAND IS PROVIDED WITH STABILIZING CAMS BEING INSERTED INTO THE LOWER SIDE THEREOF. D R A W I N G
Inventors
- 👤 W Stog
- 👤 A Krefter
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) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |