Methods and apparatuses for compacting soil and granular materials
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 25, 2019
Grant Date -
Oct 26, 2017
app pub date -
Jul 10, 2017
filing date -
Sep 5, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Methods and apparatuses are provided for compacting soil and granular materials. The soil compaction apparatuses include an arrangement of diametric expansion elements that, in their expanded state, form a larger compaction surface. In another embodiment, a compaction chamber can be provided with diametric restriction elements and a flow-through passage in the upper portion of the chamber exterior of a drive shaft. The diametric expansion or restriction elements can be fabricated from, for example, individual chains, cables, or wire rope, or a lattice of vertically and horizontally connected chains, cables, or wire rope. Embodiments of the soil compaction apparatus include, but are not limited to, closed-ended driving shafts, open-ended driving shafts, flow-through passages, no flow-through passages, removable rings for holding the diametric expansion/restriction elements, and any combinations thereof.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2017 Application Filing Year
- E02D Class
- 481 Applications Filed
- 365 Patents Issued To-Date
- 75.89 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- E02D Class
- 0 % this patent is cited more than
- 6 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Dec 25, 2026 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 25, 2030 |
