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:
Jul. 13, 1982
Filed:
Jun. 24, 1980
Abstract
A thread chain sewing method and device for use in the two-needle overlock sewing machine comprising an inner chaining-off finger arranged to be retractable from an advanced position in which it is positioned alongside an outer chaining-off finger. The inner chaining-off finger is retractable in a direction opposite the fabric material feeding direction. The inner chaining-off finger is held in its advanced position during sewing over the fabric as well as during a thread chain forming period after the trailing edge is stitched. Thread chains formed before the start of sewing are wrapped only over the outer chaining-off finger, while thread chains formed after the trailing edge of the material passes are bridged over the inner and outer chaining-off fingers.