Durametallic Corporation

Harry L Mason

Louis H Avard

John R Vesey

A mechanical seal assembly having a face ring disposed within an axially-opening recess associated with a support ring. The support ring includes a sleevelike shroud which externally surrounds and maintains the face ring in concentric relationship. A separate retainer ring cooperates between the shroud and face ring to axially and positionally secure the face ring to the support ring. The retainer ring includes an annular ring part which projects radially inwardly so as to radially overlap a part of the exposed face of the face ring to effect axial securement thereof to the support ring. The retainer ring in addition has an axially-extending sleeve part which projects axially and in surrounding relationship to the shroud. This sleeve part has a press-fit engagement with the shroud to create a fixed engagement of the retainer ring to the support ring.

Face ring retainer arrangement for mechanical seal

A bellows-type mechanical seal construction having a rotating carbide face ring provided with a vibration damper mounted thereon. The vibration damper comprises a carbon ring which is fixedly mounted within the carbide face ring, as by a press fit. The carbon vibration dampener ring is of substantial axial extent, and provides a close clearance with a shaft to effectively dampen vibrations of the rotating seal parts.

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Kalamazoo, MI, United States of America

Harry L Mason