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:
Jan. 05, 1993
Filed:
Jul. 03, 1990
Seiko Epson Corporation, Tokyo, JP;
Abstract
An on-demand type ink jet print head having a nozzle plate which is arranged horizontally so that its nozzle openings face upward and cantilevered vibrating members the free ends of which confront the nozzle openings. Ink is held by a capillary force in a gap between the vibrating members and the nozzle plate and is supplied by surface tension in a gap formed between a plurality of members from an ink tank up to the vicinity of the vibrating members. Since the ink is supplied by a capillary force between the ink level in the tank and the vibrating members, the ink supply is stable irrespective of the ink level in the tank. Further, since the ink is ejected in the form of ink droplets produced by a dynamic pressure associated with vibration of the vibrating members within the ink, it is possible to produce fine ink droplets.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile