Chain link plate with high strength

Chain – staple – and horseshoe making – Chain making – Roller chain

Reexamination Certificate

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C059S005000, C059S008000, C474S206000, C474S209000, C474S212000

Reexamination Certificate

active

07437870

ABSTRACT:
A chain link plate includes an elliptical plate body having opposite first and second surfaces, and two mounting holes spaced apart from each other in a longitudinal direction of the plate body and extending from the first surface to the second surface. The plate body has a central longitudinal line that passes through centers of the mounting holes, and two transverse lines that pass respectively through the centers of the mounting holes and that are perpendicular to the central longitudinal line. The plate body has an intermediate juncture portion defined between the transverse lines, and opposite end portions integrally and respectively connected to opposite ends of the intermediate juncture portion. The intermediate juncture portion has a largest width greater than that of each of the end portions.

REFERENCES:
patent: 1899948 (1933-03-01), Fahrenwald
patent: 4265134 (1981-05-01), Dupoyet
patent: 5203745 (1993-04-01), Wang
patent: 5322483 (1994-06-01), Wang
patent: RE34688 (1994-08-01), Lapeyre
patent: 5346006 (1994-09-01), Wu
patent: 6308510 (2001-10-01), Christmas
patent: 6652402 (2003-11-01), Poiret et al.
patent: 7325391 (2008-02-01), Oishi et al.
patent: 2005/0020394 (2005-01-01), Valle

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