Sewing machine needle

Sewing – Elements – Needles

Reexamination Certificate

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Reexamination Certificate

active

06986315

ABSTRACT:
A sewing machine needle free from combined troubles of stitch skipping and fabric yarn breakage, irrespective of high-speed and multifunction sewing machines and diversified materials being used. The sewing machine needle includes a shank, a blade connected to the shank, a needle point formed at an extremity of the blade, a needle eye formed in the vicinity of the needle point, and a long groove extending from the needle eye along the blade. The blade is provided at a portion thereof where the scarf is formed with a crank in such a manner that a side of the portion is outwardly protruded in a direction opposite from the scarf with respect to a central axis of the needle. An end of the needle eye contiguous to the scarf is protruded outward by a predetermined height from a contour of the blade.

REFERENCES:
patent: 2441171 (1948-05-01), Schulz
patent: 3862611 (1975-01-01), Kuromegawa
patent: 3929082 (1975-12-01), Zocher
patent: 3954072 (1976-05-01), Zocher
patent: 4458614 (1984-07-01), Iwashita
patent: 4563961 (1986-01-01), Beyer et al.
patent: 6318281 (2001-11-01), Hillenbrand et al.
patent: 6332416 (2001-12-01), Wohnhas et al.
patent: 6332417 (2001-12-01), Vornholt
patent: 30 27 534 (1982-02-01), None
patent: 36 36 706 (1988-05-01), None
patent: 06254282 (1994-09-01), None
patent: 58-112584 (1994-12-01), None

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