Face seal with elastomeric axial thrust member

Details Face seal with elastomeric axial thrust member Face seal with elastomeric axial thrust member

1983-01-06

1983-11-08

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 83, 277 85, 277 92, 277 95, 277177, F16J 1538

Patent

active

044138318

ABSTRACT:
A shaft seal device for inhibiting any fluid flow through between two relatively rotating faces, for example, between a casing or the like stationary member and a rotary shaft or the like rotating member extending through the casing or the like stationary member. A cylindrical seal ring member made of elastomeric material is disposed between a rotary ring fluidtightly fitted onto the rotating member and a stationary ring fluidtightly fitted into the stationary member in such a manner that both the end faces thereof come in contact with the corresponding faces of the stationary member and the rotating member. The seal ring member has at least two annular grooves formed on its outer surface and ring-shaped resilient means are fitted into said annular grooves so that both the end faces of the seal ring member are forcibly thrusted against the corresponding faces of the rotary ring and the stationary ring under the influence of contractive force of the resilient means to thereby ensure fluidtightness therebetween. To reduce wearing due to the sliding contact between the end faces of the seal ring and the corresponding faces of the stationary and rotating members and thereby to improve the durability of the device a progressive seal ring made of fluororesin is fixedly secured to the end face of the rotary ring or the stationary ring.

REFERENCES:
patent: 2950932 (1960-08-01), Gilbert
patent: 3154309 (1964-10-01), Voitik

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