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. 03, 1990
Filed:
Apr. 21, 1989
Yoshio Kanayama, Nabari, JP;
Hirokazu Kohda, Gose, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An ink reservoir of an ink jet printer which comprises an ink tank having an ink outlet storing ink and feeding the stored ink to a nozzle (13) and a vent hole for circulating air between an external atmosphere and an internal space, an outlet opening/closing means movably provided for being able to open and close the ink outlet; vent hole opening/closing means (56) and (57) movably provided for being able to open/close the vent hole, and operation transferring means for mechanically transferring movement of the outlet opening/closing means to the vent hole opening/closing means so as to interlock the operation of the outlet opening/closing means with the operation of the vent hole opening/closing means. When the outlet opening/closing means performs its operation, the operation is transferred by the operation transferring means to open/close the vent hole opening/closing means.