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:
Apr. 27, 2004
Filed:
Oct. 12, 2000
Other;
Abstract
There is provided an ink jet head to transmit a shock wave propagated by an oscillator plate to the ink discharge orifice without significant power-loss for ink ejection. An ink jet head has a body ( ) having an oscillator plate with an outer surface ( ) and an inner surface ( ), the inner surface being parallel to the outer surface. The ink jet head also has an ink pressuring chamber formed in the body between the inner surface and an opposed lower wall ( ), the lower wall being angled relative to the inner surface. The ink jet head also has an ink feed chamber formed in the body. The ink jet head also has an ink feed passage formed in the body communicating between the ink feed chamber and the ink pressuring chamber, the ink feed passage having an ink feed orifice opening into the ink pressuring chambers. The ink jet head also has an ink discharge passage formed through the lower wall of the body communicating with a discharge orifice on the lower wall, the ink discharge passage having an inlet at the ink pressuring chamber and terminating at the discharge orifice, the ink discharge passage being continuously narrowed from the ink pressuring chamber to the discharge orifice.