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:
Jan. 04, 1994
Filed:
Feb. 05, 1992
Applicant:
Inventors:
Eiji Narumi, Tokyo, JP;
Keiichi Kohroki, Aichi, JP;
Assignee:
Otis Elevator Company, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
187112 ; 310 12 ;
Abstract
A tubular linear primary element is constructed of a plurality of core groups, each core group being constructed of a plurality of laminated comb-shaped plates, each plate having a plurality of radially aligned teeth and slots. The core groups are coupled together radially about an axis with the slots of the core groups facing each other toward the axis. The teeth of each core group are removed at an axial position along the primary into which an approximately ring-shaped reinforcing core is inserted.