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:
Apr. 19, 1988
Filed:
Dec. 30, 1986
Toshiaki Yanagi, Aichi, JP;
Yoshikazu Kurono, Aichi, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
A work material feeder for a sewing machine includes a work material holder which is movable within the plane perpendicular to a passageway where a needle is moved up and down, a first pulse motor which reciprocates the work material holder in one direction within the plane synchronously with the vertical movement of said needle, a second pulse motor which reciprocates the work material holder in another direction perpendicular to the aforesaid direction synchronously with the vertical movement of the needle, and a rotation divisibility switching circuit which switches the divisibility of rotation of the first and second pulse motors in several steps, the first and second pulse motors being driven in accordance with the divisibility set by the rotation divisibility switching circuit in order to move the work material holder.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile