Mechanical seal assembly

Details Mechanical seal assembly Mechanical seal assembly

1997-01-24

1999-01-26

Knight, Anthony

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277377, F16J 1534

Patent

active

058630473

ABSTRACT:
A mechanical seal assembly having multiple compression spring assemblies that are used to bias a stationary seal into sealing engagement with a rotating seal, the springs in the spring assemblies being supported on their internal diameter and having their outside diameter visible for their entire length, each spring assembly further including a releasable, expendable clip that serves to preload the two seal faces against one another, limits relative axial movement between the stationary and rotating seal assemblies, and coaxially aligns the stationary and rotating seal assemblies.

REFERENCES:
patent: 4583748 (1986-04-01), Weichenrieder
patent: 4795572 (1989-01-01), LaValley
patent: 5116066 (1992-05-01), Crawford
patent: 5209496 (1993-05-01), Azibert et al.
patent: 5662340 (1997-09-01), Bessette et al.
Dura Seal Manual: Prior art mechanical seal design.
Dura Seal Manual: Prior art mechanical seal design, Section IV, p. 7.
Chesterton 155 Cartridge Single Seal advertisement.
Chesterton 156 Heavy Duty Slurry Seal advertisement.
In-Series Design for Maximum Reliability in Sealing VOC's and VHAP's advertisement.
Chesterton 442 Split Mechanical Seal advertisement.

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