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:
May. 15, 2001
Filed:
Jul. 23, 1999
Byung Kyu Kim, Seoul, KR;
Joon Kim, Seoul, KR;
Amotron Co., Ltd., Kyungki-do, KR;
Abstract
A vacuum generating apparatus for a vacuum cleaner is provided, in which an axial type coreless brushless direct-current (DC) motor is implemented in the form of a rotor-impeller integration structure. The vacuum generating apparatus includes an axial type brushless DC motor in which disc-shaped upper and lower rotors are symmetrically disposed facing the upper and lower portions of a disc-shaped stator at either end of a rotating shaft rotatably supported in the inner circumferential portion of the stator, upper and lower impellers integrally fixed in the upper and lower rotors, respectively, and upper and lower housings whose outer circumferential portions are combined with the outer circumferential portions of the respective disc-shaped stator such that air sucked via sucking inlets formed at the center of the housings is guided to a discharging outlet together with the stator. A single rotor structure can also be adopted.