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:
Oct. 19, 1993
Filed:
Dec. 23, 1991
Applicant:
Inventors:
Assignee:
Saint-Gobain Vitrage International, Courbevoie, FR;
Primary Examiner:
Int. Cl.
CPC ...
H01V / ;
U.S. Cl.
CPC ...
250239 ; 250216 ;
Abstract
A device for contactless detection of glass sheets in movement in glass installations, using a reflective photoelectric barrier, includes an emitter and a receiver (3) of light beams (4). The light beams follow a path in a channel (6) of heat-resistant material whose walls delimit a homogeneous isothermal environment, the channel emerging in the vicinity of sheet (11) to be detected.