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. 13, 2014
Filed:
Nov. 26, 2010
Seiichi Yokoyama, Nagano, JP;
Tomomi Igawa, Nagano, JP;
Seiichi Yokoyama, Nagano, JP;
Tomomi Igawa, Nagano, JP;
Mimaki Engineering Co., Ltd., Nagano, JP;
Abstract
A liquid circulation system includes an inkjet head formed with a common ink flow passage, an ink cartridge, a supply flow passage through which ink is supplied from the ink cartridge to an inlet of the common ink flow passage, a return flow passage through which the ink is returned from the outlet of the common ink flow passage to the ink cartridge, a tube pump sending the ink in the supply flow passage, a tube pump sending the ink in the return flow passage, a pressurization bellows unit pressurizing the ink in the supply flow passage, a pressure reduction bellows unit depressurizing the ink in the return flow passage, a pressurization regulator maintaining the inlet being a center value '+α' of a designated head value, and a differential pressure regulator by which a differential pressure of the ink between the inlet and the outlet is maintained to be '
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile