Modified stone column drill
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 14, 2016
Grant Date -
Nov 12, 2015
app pub date -
Dec 10, 2013
filing date -
Dec 10, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A granular stone column drill which includes a first drill, a second drill and a displacement device, where—the first drill includes a tube within which the second drill at least partially, co-axially, lies; —the second drill includes a drill flight and first terminal end; —the displacement device includes a displacement unit and at least one guidance means; —the displacement unit includes a guide channel and an exposed wall such that the guide channel extends into the exposed wall; —the exposed wall lies approximately parallel to a centerline of the second drill; and—the at least one guidance means are located within the guide channel; such that the guide channel is a continuous circumferential channel that follows a wave like path, and either the at least one guidance means or the displacement unit is releasably or permanently attached to the second drill.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2013 Application Filing Year
- E02D Class
- 301 Applications Filed
- 268 Patents Issued To-Date
- 89.04 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- E02D Class
- 22.43 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 14, 2027 |
