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. 22, 2000
Filed:
Mar. 23, 1998
Applicant:
Inventor:
Sang-Yoon Lee, Saha-Gu Pusan, KR;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318138 ; 318245 ; 318254 ;
Abstract
As stated earlier, the technical purpose of the present invention is to solve inconvenience in use and installation of the AC motor with a controller, and to provide the AC motor available for mass production at a low cost by installing an airtight and compact controller within the case of the AC motor and by setting the sensing wheel in one part of the driving shaft making it possible for the rotative speed primary means integrated to the said controller to sense the driving speed.