Arch foot maintaining device and maintenance method for achieving multi-degree-of-freedom displacement of arch foot
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 20, 2021
Grant Date -
Mar 4, 2021
app pub date -
Apr 8, 2019
filing date -
Sep 10, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An arch foot maintaining device includes a plurality of supporting structures, and the supporting structure includes a base, two base supporting seats, a hydraulic jack, a roller, and a roller supporting seat. The base is a cuboid with equal length and width, a through hole running through side surfaces of the base is provided on the base. A vertical guide groove is provided on each of the two base supporting seats. The roller supporting seat is U-shaped and located between the two base supporting seats, and the roller is rotatably supported in the roller supporting seat. Two ends of a central axis of the roller are respectively located in the two guide grooves, the hydraulic jack is disposed within the base, and a top of the hydraulic jack abuts against a bottom of the roller supporting seat.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2019 Application Filing Year
- E01D Class
- 70 Applications Filed
- 48 Patents Issued To-Date
- 68.58 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- E01D 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 | Jan 20, 2025 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 20, 2029 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 20, 2033 |
