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.:

US 8450889 B1

PDF
Full Text
Expired
Date of Patent:
May. 28, 2013

Filed:

May. 09, 2011
Applicant:

Wing-kin Hui, Hong Kong, HK;

Inventor:

Wing-kin Hui, Hong Kong, HK;

Assignee:

Jet Motor Limited, Hong Kong, HK;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02K 9/28 (2006.01); H02K 9/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A high speed electric motor for use in a variety of applications. The electric motor an electric motor including a motor housing or stator, a rotor having a commutator and brushes for contacting the commutator at a predefined area known as the contact area. Additionally, the motor includes a forced air cooling assembly. The forced air cooling assembly includes a centrifugal fan for creating air flow, a manifold for accelerating the air flow. The manifold having exit ports and the exit ports being positioned directly over the contact area for directing the accelerated air flow at the contact area and the motor housing having at least one opening aligned with the contact area and at least a second opening defining an exit vent. Additionally, a method of cooling the motor in accordance with the invention is also disclosed.


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