发明名称 |
METHOD OF LOCATING UNDERGROUND UTILITY LINES AND AN UNDERGROUND UTILITY LINE |
摘要 |
A method of locating an underground utility line. A first step involves securing transponders along a length of an underground utility line at regular spaced intervals. A second step involves interrogating the transponders to receive transponder signals. A third step involves ascertaining the position of the transponder signals and extrapolating positioning of the underground utility line from the transponder signals.
|
申请公布号 |
CA2416513(C) |
申请公布日期 |
2009.09.15 |
申请号 |
CA20032416513 |
申请日期 |
2003.01.17 |
申请人 |
GUARDIAN ANGEL PROTECTION INC. |
发明人 |
TUCKER, LAYNE DANIEL;LYLICK, PETER WILLIAM |
分类号 |
H01B7/00;G01S5/14;G01S13/75;G01S13/88;G01S19/14;G01S19/42;G01V3/12;G01V15/00 |
主分类号 |
H01B7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|