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. 24, 2012
Filed:
Oct. 04, 2007
Yukihiro Saga, Chiba, JP;
Toshiaki Watanabe, Chiba, JP;
Yukihiro Saga, Chiba, JP;
Toshiaki Watanabe, Chiba, JP;
SII Printek Inc., , JP;
Abstract
A pressure buffer is disposed in an ink supply path that connects an ink supply source to an ink-jet head to suppress pressure fluctuations due to vibrations created by movement of a carriage. The pressure buffer includes a chamber having an ink flow inlet through which ink flows from the ink supply source into the chamber and an ink flow outlet through which the ink flows from the chamber to the ink-jet head. A partition wall disposed within the chamber extends at least partly along a side wall of the chamber to define an ink flow path that communicates at its upper end with the chamber and at its lower end with the ink flow outlet. A through-opening is provided in the partition wall in the vicinity of the ink flow outlet and through which the ink flows between the ink flow path and the chamber to suppress pressure fluctuations in the ink flow path. Alternatively, an air pocket may be provided in the partition wall in the vicinity of the ink flow outlet to reduce presure fluctuations in the ink flow path.