The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 1979
Filed:
Feb. 22, 1977
Applicant:
Inventors:
Fred J Radd, Ponca City, OK (US);
Donald H Oertle, Ponca City, OK (US);
Assignee:
Continental Oil Company, Ponca City, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
324 33 ; 73 19 ; 73 86 ; 340632 ; 324 / ;
Abstract
Corrosion at the interface of concrete and reinforcing steel in a concrete structure is determined by placing a hollow hydrogen-permeable probe in the concrete, connecting a getter-ion pump to the probe, and monitoring the output current of the getter-ion pump. An increase in output current is indicative of corrosion occurring at the probe-concrete interface, which in turn is indicative of corrosion at the interface of concrete and steel reinforcing members at comparable locations in the structure.