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:
May. 12, 1992
Filed:
Apr. 29, 1991
Hiroyuki Sato, Morioka, JP;
Hitoshi Yauchi, Morioka, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
An ink jet head used in an ink jet printer, having a flat nozzle block, and a main tank member which is connected to a base end of the nozzle block and in which is formed a main ink tank for storing ink supplied to ink flow passages formed in the nozzle block. An auxiliary tank member in which an auxiliary tank is formed is connected to the main tank member. A slant surface downwardly inclined from an upstream position to a downstream position with respect to the direction of ink supply is formed as a part of the upper internal wall of the ink tank. Supplied ink collides against this slant surface so that air in the ink separates from the ink.