Handcuffs

Locks – Portable – Fetters

Reexamination Certificate

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Reexamination Certificate

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06851284

ABSTRACT:
The present invention relates to a pair of handcuffs which cannot be disassembled easily by securing a firm connection therebetween by hinge members. The handcuffs according to the present invention are made by the methods of shearing and bent-up forming in replacement of the conventional cast-iron method, and are connected by a connecting structure which comprises two frame plates, each of which includes a plurality of hinge members forming grooves between the neighboring hinge members and having openings therethrough and also includes a pair of flat members; couplings fitted into the grooves of the hinge members; and hinge axes to be axially fitted into the openings of the hinge members and the couplings.

REFERENCES:
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patent: 3618345 (1971-11-01), Smith
patent: 4089195 (1978-05-01), Lai
patent: 4300368 (1981-11-01), Sullivan
patent: 5205142 (1993-04-01), Kruger et al.
patent: 5461890 (1995-10-01), LeFavor
patent: 5526658 (1996-06-01), Cross et al.
patent: 5598723 (1997-02-01), Ecker et al.
patent: 5687593 (1997-11-01), Cross
patent: 6568224 (2003-05-01), Taper et al.
patent: 6574998 (2003-06-01), Kwon
patent: 20020108406 (2002-08-01), Makos et al.
patent: 20020189303 (2002-12-01), Kwon

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