System and method for detecting underground cross-bores
US9534490B2 · kind B2 · utility
7Cited by
1References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2013 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Jul 29, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/026
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system for detecting an underground cross-bore includes a mechanical sensing device attached to an underground travel element to form a combination adapted for underground travel. The mechanical sensing device senses at least a first underground condition wherein the combination is ensconced in an underground bore and a second underground condition wherein the sensing device senses entry into a pipe cavity. The mechanical sensing device desirably can provide a signal identifying entry into a pipe cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.