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. 02, 2012
Filed:
Mar. 31, 2009
Masao Shinoda, Fujisawa, JP;
Kenichi Hoshino, Fujisawa, JP;
Akira Goto, Ohta-ku, JP;
Hideki Kanno, Ohta-ku, JP;
Masao Shinoda, Fujisawa, JP;
Kenichi Hoshino, Fujisawa, JP;
Akira Goto, Ohta-ku, JP;
Hideki Kanno, Ohta-ku, JP;
Ebara Corporation, Tokyo, JP;
Abstract
A power recovery chamber is used for a positive-displacement power recovery apparatus in the seawater desalination plant or system. The power recovery chamber includes a cylinder, a piston disposed in the cylinder and capable of being reciprocated in a longitudinal direction of the cylinder, and a piston guide disposed in the cylinder and extending in the longitudinal direction of the cylinder for guiding the piston when the piston is reciprocated in the longitudinal direction of the cylinder. At least a part of an outer circumferential surface of the piston is out of contact with an inner surface of the cylinder, and the piston is brought into contact with the piston guide at a part where the piston guide passes through the piston.