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:
Aug. 08, 1989
Filed:
Jun. 17, 1987
Applicant:
Inventors:
Christopher A Wiklof, Everett, WA (US);
Gerald R Apperson, Seattle, WA (US);
Assignee:
Intermec Corporation, Lynnwood, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
346 / ; 219216 ; 400120 ;
Abstract
A thermal printhead for dissipating accumulated static electric charge. An electrically conducting outer layer is deposited over the surface of a thermal printhead that receives static charge from the passing print media or ribbon media. The layer, which can be a 100-angstrom-thick layer of chromium, is formed over a glass overglaze. If the surface overglaze is passivated, a 10-angstrom-thick activating primer layer is formed on the glass overglaze before the chromium layer is deposited. The conductive outer layer is connected to electrical ground to dissipate the static electric charge as it is generated.