Underwater repair system for cavity region of concrete panel rock-fill dam panel
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Dec 14, 2021
Grant Date -
Jun 3, 2021
app pub date -
Feb 13, 2019
filing date -
Feb 13, 2019
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided is an underwater repair system for a cavity region of a concrete panel rock-fill dam panel, including a moving platform, a work cabin, a pressure drainage apparatus, a traction apparatus, and a positioning apparatus; the traction apparatus controlling the movement of the moving platform on the surface of a dam concrete panel; the positioning apparatus transmits a detection position; the work cabin is a pressure cabin, the work cabin being connected to the pressure drainage apparatus, and a drill apparatus and grouting apparatus being arranged in the work cabin; the moving platform moves into the cavity region, and the pressure drainage apparatus starts up to drain the water in the work cabin, a partially closed waterless space being formed inside the work cabin, the drill apparatus drilling the concrete panel at the upper end of the cavity region and the grouting apparatus subsequently implementing grouting to complete the repair.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2019 Application Filing Year
- E02B Class
- 243 Applications Filed
- 172 Patents Issued To-Date
- 70.79 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- E02B Class
- 0 % this patent is cited more than
- 4 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jun 14, 2025 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 14, 2029 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 14, 2033 |