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:
Oct. 24, 1978
Filed:
Aug. 10, 1977
James N Humenik, LaGrangeville, NY (US);
Jimmie L Powell, Wappingers Falls, NY (US);
Rao R Tummala, Wappingers Falls, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The lifetime of multiple capillary nozzle assemblies embedded in a glass mass, of a multiple nozzle ink-jet printer, can be increased and the thermal and mechanical compatibility of the resulting package enhanced by fabrication of the nozzles from glass compositions comprised of SiO.sub.2, ZrO.sub.2, Na.sub.2 O, K.sub.2 O and MgO. Inclusion of ZrO.sub.2 as well as minor amounts of BaO, MgO, CaO, and Al.sub.2 O.sub.3 enhances the alkali resistance of the glass nozzles. Also, the high SiO.sub.2 content of the glasses combined with the presence of ZrO.sub.2, MgO, CaO, and Al.sub.2 O.sub.3 imparts an acid resistance to the nozzles.