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:
Dec. 27, 1977
Filed:
Dec. 22, 1975
Honma Yoshiyuki, Tokyo, JA;
Yamazaki Fumio, Tokyo, JA;
Nihon Kagaku Kizai Kabushiki Kaisha, Tokyo, JA;
Abstract
A magnetically driven, powerful rotary pump comprising at least one driven magnet secured to the rotary shaft of a pump and housed in a magnet case to separate the driven magnet in a liquid-type chamber from the pump chamber and at least two driving magnets secured to a drive shaft to be connected to a power source, with the at least one driven magnet being housed in the magnet case and being sandwiched in between the driving magnets. In one embodiment, the at least one driven magnet treated to be corrosion resistant and the magnet case is made of a corrosion resistant material or treated to be corrosion resistant, thereby rendering it unnecessary to form a liquid-tight seal between the pump chamber and the inside of the magnet case.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile