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:
Sep. 26, 1995
Filed:
Jul. 02, 1993
Takayuki Waseda, Tokyo, JP;
Takeo Komiyama, Tokyo, JP;
Citizen Watch Co., Ltd., Tokyo, JP;
Abstract
An ink cartridge for the ink jet printer has a cartridge housing having a storeroom and an adjustment room therein separated by a bulkhead. The bulkhead extends vertically at the center of the cartridge housing, and has a lower part thereof with a connection opening extending therethrough. The connection opening communicates the storeroom with the adjustment room. The storeroom is airtight except for the connection opening. The adjustment room has an upper part with an air hole communicating the adjustment room with the atmosphere and a lowest part with a feed pocket for feeding ink to a printing head. Fiber-like materials impregnated with ink are filled inside the adjustment room, these materials having a part thereof that extend to the bottom of the storeroom through the connection opening. The fiber-like materials comprise a plurality of felt blocks that have different fiber densities, the felt blocks being arranged so that the closer the felt blocks are to the feed pocket, the greater the fiber density of the felt blocks.