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:
Sep. 28, 1993
Filed:
May. 22, 1992
Masaki Kobayashi, Kosai, JP;
Kazuma Shibata, Kosai, JP;
Asmo Co., Ltd., , JP;
Abstract
A substantially C-shaped core which is used in a rotational position sensor of an inductance type. The core is formed of a sensing side portion and a referencing side portion, each of which has an arc shape. The centers of the arc shapes are spaced apart from one another at a predetermined distance, thereby extending a movable range of a movable short ring. As a result, a rotational position can be detected over a wider range of degrees. The core is also formed of a core intermediate portion, which has laminated thin plates therein, and core opposite end portions, which are disposed in a sealed state on the top and bottom surfaces of the core intermediate portion. The core intermediate portion and the core opposite end portions are welded together at given points so as to form a one-piece body. Surfaces of the core can thereby be prevented from being deformed or detached.