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:
Nov. 16, 1982
Filed:
May. 28, 1980
Hisayuki Matsumoto, Hirakata, JP;
Seiichi Ushijima, Hirakata, JP;
Susumu Kinoshita, Katano, JP;
Masaki Suzuki, Hirakata, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A rotation speed signal detector comprising a cylindrical rotor magnet having n rotor magnet poles provided along the inner circumference and m[m>n] rotation speed detection magnet poles provided along the outer circumference; a stator winding; a rotation speed detection coil including a pair of coil conductors provided on the outer side of the rotor magnet in the form of a ring; and a terminal base having output terminal pins connected to one end portion of the coil conductors and a short circuiting terminal pin for connecting the other ends of the coil conductors. Each conductor may be short-circuited by a conductor on a winding conductor processing substrate provided separately instead of being short-circuited by the terminal pin.