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:
Oct. 23, 2012
Filed:
Mar. 03, 2010
Applicant:
Katsumi Shinkai, Fujimi-machi, JP;
Inventor:
Katsumi Shinkai, Fujimi-machi, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/175 (2006.01);
U.S. Cl.
CPC ...
Abstract
A liquid column member of a liquid tank is adapted to be coupled to a tank body of the liquid tank and to face a photosensor that detects a liquid level in the tank body. The liquid column member includes a pipe body and a liquid guide portion. The pipe body is made of light transmissive material. The pipe body has a liquid repellent internal surface. The liquid guide portion is configured and arranged to guide a droplet that slips down along the internal surface of the pipe body away from a sensing position of the photosensor.