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:
Jan. 18, 2005
Filed:
Jun. 30, 2003
Dennis G. Douglas, Bend, OR (US);
Joseph W. Maresca, Jr., Sunnyvale, CA (US);
Christopher M. Smith, Richland, WA (US);
Phillip C. Ohl, Kennewick, WA (US);
Dennis G. Douglas, Bend, OR (US);
Joseph W. Maresca, Jr., Sunnyvale, CA (US);
Christopher M. Smith, Richland, WA (US);
Phillip C. Ohl, Kennewick, WA (US);
Vista Engineering Technologies LLC, Kennewick, WA (US);
Abstract
A method and an apparatus for remotely and automatically monitoring for corrosion of a tank, pipe, or container with a gas or liquid environment using corrosion coupons that do not have to be removed from the environment for inspection and evaluation. The coupons are designed to fail when a specified level of corrosion occurs. A permanent magnet located on a coupon sensing system inside the corrosive environment is used to transmit the failure of the coupons outside the corrosion environment and across a wall or other boundary surface without requiring a power supply.