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. 15, 2012
Filed:
Oct. 08, 2008
Masataka Yoshiike, Kanagawa, JP;
Masataka Yoshiike, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A liquid tank includes a vent-to-atmosphere mechanism configured to open and close a vent-to-atmosphere passageway for venting an internal reservoir space connected to a liquid spray head to atmosphere, the vent-to-atmosphere mechanism including a cylindrical member, a valve seat disposed inside the cylindrical member, a valve plug disposed inside cylindrical member and movable to come in contact with or separate from the valve seat, a movable member disposed inside the cylindrical member on an atmosphere side of the valve plug in a slidable manner to cause a movement of the valve plug, the movable member having an outer surface in movable contact with an inner surface of the cylindrical member and having a communication passageway formed therethrough for communication with atmosphere, and a filter member disposed at the communication passageway to capture foreign material.