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:
Aug. 27, 2019
Filed:
Feb. 17, 2016
Tbk Co., Ltd., Machida-shi, Tokyo, JP;
Makoto Osawa, Yokohama, JP;
TBK CO., LTD., Tokyo, JP;
Abstract
The fluid pump according to the present invention has water storage means that is formed so as to communicate with a shaft hole in a pump case and stores fluid leaking from a mechanical seal. An electromagnetic clutch establishes or blocks the transmission of power to a drive shaft by switching between supply and non-supply of electricity to an excitation coil. The water storage means has a weep chamber that communicates with the shaft hole between the mechanical seal and a bearing and is opened to an end portion in the axial direction. An attachment member for attaching a core of the electromagnetic clutch to the pump case seals the opening of the weep chamber.