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.

Date of Patent:
May. 03, 1977

Filed:

Jun. 20, 1975
Applicant:
Inventors:

Emile F Le Coquil, Lannion, FR;

Jean C Amicel, Lannion, FR;

Jean-Pierre G Martiniere, Lannion, FR;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358302 ; 3151 / ; 3401 / ; 3403 / ; 3461 / ;
Abstract

A writing head for reproducing a line on an image upon a light sensitive surface from a periodically pulsed signal, the timing or period of the pulses representing the position on the line at which writing is to take place. The writing head comprises a series of cathodes and two anodes in contact with a gas at low pressure. The two anodes are in the form of parallel, metallic adjacent strips extending transversely of the cathodes. One of the anodes is continuous and opaque while the other anode is formed with holes for allowing the light produced by gas discharge to fall on a photo-sensitive carrier. The cathodes may be disposed in a common plane and parallel to each other; they may also be connected in a cyclic array to a plurality of bus bars and successively energized.


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Le Coquil, Emile. (1977). Writing head for facsimile image reproduction (U.S. Patent No. 4021851). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4021851

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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