Reinforced pipe
Abstract
Abstract This patent application provides reinforced, composite concrete pipe having polymeric resin composition, filler and fiber reinforcement providing high strengths and resistant features to corrosion and environmental conditions. Joinery means for making pipelines of the individual pipe elements is provided and includes methods of making resilient resistant joinery and shock absorbinb joinery and pipe features of construction. The pipe has interior and exterior laminated constructions on porous structural material bodies, and includes also polymeric resin composition, filler and fiber reinforcements within the body of the porous structural material as a unitary structured material. Force systems derived from ehcmical means of stressing as well as thermal and mechanical means of prestressing preloads into the structure of the made pipe and pipelines comprise components of structure of the said reinforced, composite concrete pipe and pipelines.
Inventors
- 👤 D Rubenstein
Bibliographic Details
Claims Analysis
Total Claims: 1References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |