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:
Apr. 02, 2019
Filed:
Nov. 24, 2014
The Metraflex Company, Chicago, IL (US);
James R. Richter, Licolnshire, IL (US);
THE METRAFLEX COMPANY, Chicago, IL (US);
Abstract
An expansion joint including a hollow elastomeric body having coupling flanges at each open end configured to connect to flanges of a pipe system. The hollow elastomeric body is made of a material including an elastomer and fibers. A stretchable sensor is located within the material of the hollow elastomeric body. The sensor is configured to provide a varying electrical characteristic when the sensor is stretched or contracts. An analysis circuit is connected to the sensor, the analysis circuit configured to receive the varying electrical characteristic and to emit a signal corresponding to a level of the electrical characteristic received by the analysis circuit.