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:
Jun. 26, 2001
Filed:
Dec. 10, 1998
Applicant:
Inventor:
Jong-Tae Heo, Seoul, KR;
Assignee:
LG Electronics, Inc., , KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 4/100 ;
U.S. Cl.
CPC ...
H02K 4/100 ;
Abstract
A magnet fixing structure for a linear motor including a a plurality of magnets inserted into a magnet paddle connected to a piston, and a magnet fixing ring attaching the same onto the outer periphery of the magnets under pressure, includes a plurality of eddy current loss prevent slits formed in slant along the periphery of the magnet fixing ring, or a plurality of eddy current loss prevent pores formed along the periphery of the magnet fixing ring. The structure minimizes the widening of the slits which may be caused by magnet fluctuation, thereby improving motor efficiency.