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. 14, 2018
Filed:
Dec. 30, 2016
Océ Holding B.v., Venlo, NL;
Ludovicus M. Heijnders, Venlo, NL;
Marco T. R. Moens, Venlo, NL;
OCÉ HOLDING B.V., Venlo, NL;
Abstract
A filter device for filtering ink for delivery to at least one drop forming unit of a print-head in a printing apparatus includes: an inlet for admission of ink to the filter device; a first filter member adjacent the inlet for filtering the ink as the ink enters the filter device; a collection chamber arranged below the first filter member for collecting the ink after the ink passes through the first filter member; and an outlet for delivering the ink from the collection chamber to a reservoir for supplying the at least one drop forming unit. The collection chamber includes at least one flow directing member defining at least one predetermined flow path, especially at least one circuitous or indirect flow path, for the ink through and/or around the collection chamber to the outlet. Furthermore, an ink supply system for supplying ink to at least one drop forming unit of a print-head in a printing apparatus includes an ink melting device for melting solid ink elements, such as toner pearls, to form liquid ink; a filter device according to the invention for filtering liquid ink from the melting device; and a reservoir for storing the liquid ink received from the filter device for delivery to the at least one drop forming unit.