Pipe-to-soil testing apparatus and methods
US6774814B2 · kind B2 · utility
27Cited by
26References
36Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Dec 26, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F2213/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A test point monitor is disclosed which includes, a processor, a cellular modem interfaced to the processor, and at least one analog sensor interfaced to the processor. The monitor is configured with a wake-up cycle, and further configured to periodically measure a voltage during the wake-up cycle utilizing the sensor, and further configured to transmit the measured voltage over a cellular control channel utilizing the modem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.