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. 10, 1993
Filed:
Sep. 12, 1991
An C Lin, Cupertino, CA (US);
Juan E Lopez, Newbury Park, CA (US);
Dataproducts Corporation, Woodland Hills, CA (US);
Abstract
Ink jet apparatus including a print head having at least one chamber, an inlet opening to the chamber, and a droplet ejection orifice from the chamber, a transducer coupled to the chamber for ejecting droplets of ink in liquid form therefrom through the orifice, a manifold for supplying ink in its liquid form to the at least one chamber, and a cartridge, coupled to the manifold, for containing a supply of ink in solid form. The ink includes a wax-based vehicle to provide it with a hot melt capability, and a conductive pigment substantially dispersed throughout the wax-based vehicle to adapt it for self-melting. Accordingly, the cartridge includes a source of electrical current for energizing the conductive pigment on demand, wherein such supply of ink in solid form can be melted to a jettable liquid form upon energization of the conductive pigment by the source.