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:
Dec. 06, 1994
Filed:
Dec. 23, 1992
Minoru Yamaguchi, Ichinomiya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
Light projectors are located outside of a kiln inlet and at positions below the axis of a roller array for generating optical signals in the lengthwise direction. Light receptors are located outside of a kiln outlet and at positions below the axis of a roller array for independently receiving the optical signals from the projectors. When the rollers rotate normally, the light generated from the projectors enter intermediately the receptors. When there is roller breakage, the broken roller falls due to gravity and tilts down. Then, a part of the light generated from the projectors is cut off by the broken roller piece. Hence, no ray reaches the receptor corresponding to the shielded ray. This ensures that roller breakage is detected.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile