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Patent Searching and Data


Title:
EVERLASTING BOBBIN SEWING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/150329
Kind Code:
A3
Abstract:
A thread feeding system for any machine that requires a locking stitch. The lower thread of the lock stitch is delivered from the inside of a rotary hook system or oscillating system of a lock stitch sewing machine. The rotary hook or oscillating hook is held in place by a bearing. The rotary hook or oscillating hook is allowed to be driven by teeth on the inner bearing, and they may be located inside or outside, fore or aft to the positioning of the outer bearing. This allows for the void now left inside the rotary hook or oscillating hook where a pipe or tube is placed to feed the lower locking stitch thread. A thread tension case is configured for being joined to a bobbinless lower thread feeding system of a sewing machine and creating drag and resistance for a lower thread during formation of the lower locking stitch.

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Inventors:
HANCOCK TEMPLETON COLUM DEAN (TH)
Application Number:
PCT/IB2019/050843
Publication Date:
October 03, 2019
Filing Date:
February 03, 2019
Export Citation:
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Assignee:
HANCOCK TEMPLETON COLUM DEAN (TH)
International Classes:
D05B23/00; D05B57/00; D05B27/10; D05B57/08; D05B57/30
Foreign References:
US2217895A1940-10-15
US3509840A1970-05-05
US1208428A1916-12-12
US2254794A1941-09-02
US2332964A1943-10-26
US10156034B12018-12-18
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