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. 29, 2000
Filed:
Oct. 19, 1998
National Science Council, , TW;
Abstract
A method for measuring the cover thickness of a reinforcing bar in concrete. An impacting device and a receiver are disposed on the concrete surface along the longitudinal axis of the reinforcing bar with a predetermined distance H provided between the impacting device and the receiver. Then, an impact is applied on the concrete surface by the impacting device, to generate a dilatational wave which propagates into the concrete and is totally refracted at an interface between the concrete and the reinforcing bar, and is received by the receiver. Then, the cover thickness of the reinforcing bar is calculated according to the travel time for the dilatational wave from the impact device through the reinforcing bar to the receiver.