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:
Feb. 03, 2026
Filed:
Nov. 03, 2022
Amotech Co., Ltd., Incheon, KR;
AMOTECH CO., LTD., Incheon, KR;
Abstract
Provided are a fan capable of preventing oil-scattering without using an oil-scattering prevention washer and simultaneously preventing the escape of a rotary shaft due to a lift, and a manufacturing method therefor. The fan includes: a cylindrical fan housing; a base having a bearing housing integrally formed therewith, the bearing housing protruding from the rear surface of the fan housing to the center portion thereof; a sleeve bearing inserted in the bearing housing; a rotary shaft of which the lower portion is rotatably supported by the sleeve bearing; a rotor fixed to the upper portion of the rotary shaft; a stator which is coupled to the outer circumference of the bearing housing, and is arranged with a predetermined gap from the rotor; and an impeller which is integrally formed with the outer circumference of the rotor.