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. 22, 2019
Filed:
Aug. 23, 2013
Hitachi, Ltd., Tokyo, JP;
Masaharu Kiyama, Tokyo, JP;
Guangbin Zhou, Tokyo, JP;
Takayuki Nozaki, Tokyo, JP;
Shizu Matsuoka, Tokyo, JP;
Masakazu Sugaya, Tokyo, JP;
Taku Nakamura, Tokyo, JP;
Koichi Terada, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The liquid feeder includes a liquid feeding pipe having a liquid introduce port and a liquid discharge port, a housing container which holds liquid to be introduced from the liquid introduce port, a liquid feed mechanism which feeds the liquid in the liquid feeding pipe to the liquid discharge port, a gas introduce unit which introduces gas into the liquid feeding pipe, and a liquid level detection unit which detects an advancing liquid level of the liquid to be fed in the liquid feeding pipe. The gas introduce unit is connected to a branch part provided in the liquid feeding pipe on the upstream side of the liquid feed mechanism. The liquid level detection unit is provided on the downstream side of the branch part.