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. 03, 1985
Filed:
Dec. 16, 1983
Applicant:
Inventors:
Dudley A Chance, Danbury, CT (US);
Michael Sampogna, Fishkill, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
346165 ; 346155 ;
Abstract
An electrolytic print head comprises a plurality of styli (16, 18) between electrically insulative laminae (38, 42, 48, 38', 42', 48') which space the styli from planar reference electrodes (20, 22, 24). The styli and reference electrodes are fabricated of a mixture of ruthenium dioxide and corrosion resistant glass, and the insulative laminae are fabricated of corrosion resistant glass. The method of manufacture of the print head facilitates use of styli and reference electrodes requiring high temperature processing prior to deposition of metal conductor tracks for the styli and reference electrodes.