Mechanical seal

Details Mechanical seal Mechanical seal

1987-11-16

1989-04-11

Griffin, Donald A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 38, F16J 1534, F16J 1548

Patent

active

048199508

ABSTRACT:
The mechanical seal is particularly effective for sealing the shaft of a pump used to pump difficult liquids, such as slurries, relative to the casing through which the shaft passes. The seal has a first rotating sealing member and a second stationary sealing member which are urged together by one or more springs. The springs act between the second sealing member and a reaction member whose axial position is adjustable to take up wear of the sealing faces of the sealing members. A further feature of the seal is the fact that the sealing members and reaction member are removable from the shaft in the form of a unitary cartridge when it becomes necessary to replace worn parts.

REFERENCES:
patent: 2559964 (1951-07-01), Jensen
patent: 4114900 (1978-09-01), Wiese
patent: 4509762 (1985-04-01), Garrett
patent: 4703939 (1987-11-01), Wentworth

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