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:
Jul. 09, 2019
Filed:
Mar. 20, 2018
Klt Technology, Inc., Dayton, OH (US);
Steven L. Yeager, Miami Township, OH (US);
Jason M. Romine, Dayton, OH (US);
Carl M. Lentz, Waynesville, OH (US);
Thomas Randall Lane, Lebanon, OH (US);
Robin A. Snyder, Bellbrook, OH (US);
KLT Technology, INC., Dayton, OH (US);
Abstract
Visually and electronically readable temperature indicators have an electric circuit having a microchip and a bridge within the circuit and a porous substrate in direct contact with the bridge. The porous substrate has a first end protruding beyond a perimeter of the bridge with a temperature sensitive composition of a pre-selected melt temperature as a dry coating thereon. The bridge is formed of a conductive material and a binder. At a temperature at or above the pre-selected melt temperature, the temperature sensitive composition melts, migrates along the porous substrate to a position in contact with the bridge, thereby rendering the bridge electrically non-conductive or less conductive than an originally conductive state of the bridge, and provides a visible indication that the pre-selected melt temperature has been reached.