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:
Jan. 13, 1987
Filed:
Oct. 24, 1985
Joseph J Bakewell, Boxford, MA (US);
Dynamics Research Corporation, Wilmington, MA (US);
Abstract
A thermal print head formed of a laminated sandwich structure, an edge of which serves as the print-head surface. Electrodes are carried on dielectric sheets, the electrodes having ends in contact with a layer of resistive material on the print head surface. When power is applied to selected electrodes, portions of the resistive material are heated, forming printing elements which mark thermal paper confronting the print-head surface. A heater and heat sensor are supported within the laminated structure on a separate dielectric surface from the electrodes, the heater and heat sensor being operative in combination with a temperature regulator to maintain the print head at a predetermined temperature.