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. 19, 2005
Filed:
Jun. 26, 2003
Applicant:
Kazuyoshi Tominaga, Chiba, JP;
Inventor:
Kazuyoshi Tominaga, Chiba, JP;
Assignee:
SII Printek Inc., Chiba, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J002/015 ; B41J002/17 ; B41J002/175 ;
U.S. Cl.
CPC ...
Abstract
An air damper for use with an ink jet head has a main body having an ink reservoir portion, and a film sealed to the main body and covering the ink reservoir portion to define therewith an ink reservoir. A reinforcement plate is attached to the main body and overlies the film to prevent rupture of the film due to expansion thereof when the ink jet head is pressure-filled with ink. The reinforcement plate has a recessed portion opposed to and facing the film to permit limited expansion of the film caused by pressure fluctuations of ink in the ink reservoir.