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. 31, 1984
Filed:
Jan. 25, 1982
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
An electromechanical actuator is formed in flat and thickness reduced configuration having a stator, a movable portion to drive or control a needle positioning mechanism and a work feed regulating mechanism or the like in response to electrical signals. Said stator portion includes a pair of parallel spaced yokes to define a single air gap therebetween, and a plate-like permanent magnet secured to an inner wall of at least one of said yokes, the magnet being magnetized so that oppositely directed flux fields are established within the air gap. Said movable portion includes planar armatures disposed in said flux fields to pivotally move with the fulcrums placed at the opposed peripheral portion, and exciting windings each carried by said armatures.