Seal chain

Details Seal chain Seal chain

2007-07-18

2008-12-23

Jones, David B (Department: 3725)

Chain, staple, and horseshoe making

Chain making

Roller chain

C059S078000, C474S207000

Reexamination Certificate

active

07467509

ABSTRACT:
In a seal chain, a seal mechanism disposed between opposed surfaces of inner and outer link plates comprises an elastic ring, a seal ring adhered to the outer link plate, an annular resin seal having a base adhered to the inner link plate, a tongue on the annular resin seal in abutting relationship with the outer link plate, and a ring-shaped plate adhered to the outer link plate. The elastic ring is held between an inclined surface formed on an end of a bushing that protrudes past the inner link plate, and an inclined inner surface of the seal ring. The inner circumferential surface of base of the annular resin seal slides on the outer circumferential surface of the seal ring.

REFERENCES:
patent: 3135128 (1964-06-01), Rudolph
patent: 4464151 (1984-08-01), Kahl
patent: 5425679 (1995-06-01), Utz
patent: 5459993 (1995-10-01), Kuriyama et al.
patent: 5787700 (1998-08-01), Tanaka
patent: 5809767 (1998-09-01), Tanaka
patent: 5943855 (1999-08-01), Morimoto et al.
patent: 6782688 (2004-08-01), Garbagnati et al.
patent: 5-1717 (1993-01-01), None

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