Presser foot device for sewing machine and sewing machine...

Sewing – Elements – Presser devices

Reexamination Certificate

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Reexamination Certificate

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07958833

ABSTRACT:
A presser foot device for a sewing machine includes a presser bar mounted on a head provided at a distal end of an arm and having a lower end having a presser foot, the presser foot device lifting the presser foot upward and downward together with the presser bar, the presser foot device further including a first shaft, a support unit configured to support the first shaft, and a presser foot lifting lever configured to move the presser foot upward and downward, the presser foot lifting lever being rotatably connected to the support unit by the first shaft. The support unit is rotatable between a first position where the presser foot lifting lever is located below the arm of the sewing machine and a second position where the presser foot lifting lever is located behind the head of the sewing machine.

REFERENCES:
patent: 21671 (1858-10-01), Grover
patent: 2422820 (1947-06-01), Best
patent: 3494314 (1970-02-01), Johnson
patent: 4403561 (1983-09-01), Schaeflern et al.
patent: 4709644 (1987-12-01), Fujihara et al.
patent: 7325501 (2008-02-01), Yamasaki
patent: A-08-057174 (1996-03-01), None
patent: A-2002-066181 (2002-03-01), None
patent: A-2007-229273 (2007-09-01), None

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