Mechanical seals

Details Mechanical seals Mechanical seals

1992-10-06

1994-06-28

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 42, 277 81R, 277 88, 277 93R, F16J 1534, F16J 1536

Patent

active

053240480

ABSTRACT:
The invention provides a sleeve for a cartridge-mounted mechanical seal, the sleeve being formed from two connected-together metallic components. The first component is made from a material having a relatively high chemical resistance, the second from a material having a relatively lower chemical resistance. The arrangement of the components is such that, in use as part of a seal, the sleeve has only its first component in contact with the fluid whose escape is being sealed. Such a sleeve is easier and cheaper to produce than one made entirely from a high chemical resistance material, and yet just as effective in use. The invention also provides a seal including such a sleeve.

REFERENCES:
patent: 1866967 (1932-07-01), Durham
patent: 4509762 (1985-04-01), Garrett
patent: 4538821 (1985-09-01), Wallace
patent: 4688807 (1987-08-01), Warner
patent: 4971337 (1990-11-01), Hufford
patent: 5213340 (1993-05-01), Azibert et al.

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