Title:
【発明の名称】遠隔カソード保護監視システム
Document Type and Number:
Japanese Patent JP2002501120
Kind Code:
A
Abstract:
A cathodic protection monitoring system for buried metal objects comprising a transponder hard-wire connected to a sacrificial anode and a reference electrode, each of the transponder, the sacrificial anode and the reference electrode being buried underground in close proximity to the buried metal object to be protected, thereby forming a first principal circuit between the sacrificial anode and the buried metal object and forming a second principal circuit between the reference electrode and the buried metal object. The system further comprises a portable transceiver disposed above ground tuned to a frequency of the transponder. Power for operation of the transponder is drawn from the cathodic protection circuit, thereby obviating the need for connections to above ground power supplies.
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| JPS5358939 | ANTIRUST AGENT |
Inventors:
Joel, Cooper
Albert W. Gershmann
Joe, W. McCarty
Arthur, Shapiro
Christopher, J. J. Orkovsky
Albert W. Gershmann
Joe, W. McCarty
Arthur, Shapiro
Christopher, J. J. Orkovsky
Application Number:
JP2000519630A
Publication Date:
January 15, 2002
Filing Date:
March 31, 1998
Export Citation:
Assignee:
GAS TECHNOLOGY INSTITUTE
International Classes:
C23F13/00; C23F13/22; (IPC1-7): C23F13/00
Attorney, Agent or Firm:
Kazuo Sato (3 others)