Electrical friction sleeve cone penetrometer
US4398414A · kind A · utility
10Cited by
3References
11Claims
0Family size
Inventor
Key dates
| Filing date | Jul 21, 1981 |
| Grant date | Aug 16, 1983 |
| Priority date | — |
| Expiry date | Jul 21, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0076
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A quasi-static electrical friction sleeve cone penetrometer probe which includes a main body, portion of the body being a cone load cell connectible to a cone for measurement of cone resistance. A friction sleeve load cell is connectible to the main body, and a friction sleeve is connectible to the friction sleeve load cell for separate measurement of side friction. Each load cell has strain gauges attached around an outer surface, and balancing circuitry located within the cell. The friction sleeve is supported against lateral forces by three annular sleeves located on the main body, friction sleeve load cell and the cone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.