Seal chain and manufacturing method thereof

Details Seal chain and manufacturing method thereof Seal chain and manufacturing method thereof

2011-03-22

2011-03-22

Siconolfi, Robert A (Department: 3657)

Endless belt power transmission systems or components

Positive drive belt

Belt formed of rigid links

C059S078000, C277S392000

Reexamination Certificate

active

07909718

ABSTRACT:
A seal chain in which a sealing member having a shape of a “plus” in section is steadily twisted (turned) and deformed into a shape of an “X” and whose abrasion resistance and flexing torque are improved. The sealing member is formed such that inner diametric side end faces of third and fourth lip portions extending in a transverse direction from a center base portion extend in a direction orthogonal to a radial direction and outer diametric side end faces thereof are formed as tapered faces such that width of the lip portion is widened from an edge face toward the base portion. A diagonal distance of the center base portion is within a range of 0.8 to 1.0 of a clearance between inner and outer link plates.

REFERENCES:
patent: 5943855 (1999-08-01), Morimoto et al.
patent: 49-648 (1974-01-01), None
patent: 64-30946 (1989-02-01), None
patent: 3-110265 (1991-11-01), None
Pikley, Walter D; Peterson's Stress Concentration Factors: Chapter 3 Shoulder Fillets; 1997; John Wiley & Sons, Inc.; 2nd Edition, pp. 135-174.
Japanese Office Action issued Dec. 21, 2010 in corresponding Japanese Patent Application No. 2005-177559 w/translation.

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