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:
Nov. 17, 2015
Filed:
Sep. 13, 2012
Hideo Hoshi, Tokyo, JP;
Shogo Nakashima, Tokyo, JP;
Tatsuya Hidaka, Tokyo, JP;
Yasuharu Yamamoto, Kako-gun, JP;
Takeshi Okubo, Tokyo, JP;
Toshiyuki Osada, Tokyo, JP;
Masashi Tagawa, Tokyo, JP;
Hideo Hoshi, Tokyo, JP;
Shogo Nakashima, Tokyo, JP;
Tatsuya Hidaka, Tokyo, JP;
Yasuharu Yamamoto, Kako-gun, JP;
Takeshi Okubo, Tokyo, JP;
Toshiyuki Osada, Tokyo, JP;
Masashi Tagawa, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A drive unit of a magnet coupling pump, in which leakage of the magnetic flux to the outside and the effect of the external magnetic field are suppressed. The drive unit includes: a driving magnet () positioned at an outside of the driven magnet () of the magnetic coupling pump () with respect to a rotation axis (A) of the magnetic coupling pump () to face the driven magnet () with a gap; a cup tube portion () made of a ferromagnetic material and in a tubular shape centered on the rotation axis (A); a case main body () including a cup () in which the driving magnet is fixed inside of the cup tube portion; a motor () rotating the cup around the rotation axis, and a tube portion (), which is tubular in shape. The cup is provided in the tube portion () with a gap.