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. 04, 2007
Filed:
Jan. 30, 2004
Laurent Demia, Montluel, FR;
Serge Bulteau, Julienas, FR;
Alain Cros, Creches sur Saone, FR;
Actaris S.A.S., , FR;
Abstract
An optical detector device for a counter, comprising a consumption indicator, formed from a rotating disc () with a section called active (A) and optical elements of the receiver and emitter types opposite the disc. The received signal from which is used to infer the number of rotations of the disc and which comprises at least two of the optical elements (A,B) of one type and at least one of the optical elements () of the other type. The section (A) is a reflecting section with a center angle of 45 to 225 DEG and the two optical elements of one type (A,B) are emitting elements, emitting a beam of light, where the lines connecting each trace (S(A), S(B)) of the beams on the disc () to the center of the disc form an angle at the center which is not zero.