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:
Sep. 01, 1992
Filed:
Mar. 20, 1991
Brent a Thorne, West Bloomfield, MI (US);
Salvatore J Riera, Washington, MI (US);
Other;
Abstract
The present invention is directed to an apparatus and method for detecting the presence or absence of a discontinuity on a glass surface. The apparatus includes a transmitting means for directing and receiving infrared electromagnetic radiation relative to the glass surface, a positioning means for positioning the transmitting means in a fixed angular and distance relation with respect to the glass surface, and a sensing means for determining the relative magnitude of the received radiation, the magnitude being indicative of the presence or absence of a discontinuity. The apparatus may be translated relative to the glass surface to detect discontinuities therealong.