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. 10, 2012
Filed:
Dec. 28, 2007
Takahiro Yamada, Toyoake, JP;
Naoya Okazaki, Gifu, JP;
Yoichiro Shimizu, Kasugai, JP;
Masaru Someya, Nagoya, JP;
Takahiro Yamada, Toyoake, JP;
Naoya Okazaki, Gifu, JP;
Yoichiro Shimizu, Kasugai, JP;
Masaru Someya, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Aichi-Ken, JP;
Abstract
A liquid jetting apparatus includes: a head; an ink storage chamber communicating with the head; a gas distributing chamber in which a gas introducing hole is formed; a buffer chamber in which a communicating hole for communicating with the gas distributing chamber, and an atmosphere opening hole for opening to the atmosphere are formed; a combination valve which is capable of opening and closing the gas introducing hole and the communicating hole; a gas introducing mechanism which introduces the compressed air through the gas introducing hole to the head to jet the ink forcibly, and a positive-pressure control valve which opens the atmosphere opening hole when a pressure in the buffer chamber exceeds a predetermined value. It is possible to operate a positive-pressure purge while suppressing an excessive increase in the pressure inside the liquid storage chamber, without increasing a size and a cost of the apparatus.