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. 24, 1989
Filed:
Jul. 12, 1982
Maruzen Sewing Machine Co., Ltd., Osaka, JP;
Abstract
A looper changeover device for a sewing maching capable of making overlocked stitches is improved by having a manually operable, rotatable selector mechanism for securing and selectively positioning a looper with respect to a looper holder and a looper driving mechanism between a first position and a second position wherein the looper can be moved along separate paths for the selective production of overlocked stitches with one needle and three threads or one needle and two threads. The rotatable selector mechanism can include a rotatable disk or dial supported by the holder and engaging a portion of the looper for positioning and securing the looper in either of the first and second positions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile