Mechanical seal

Details Mechanical seal Mechanical seal

1976-11-26

1979-03-20

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

F16J 1534

Patent

active

041450590

ABSTRACT:
A mechanical seal comprises, in addition to a rotating seal element, a stationary seal element, and a support ring: means for securing the support ring to a rotating shaft in such a manner that, between a casing and the shaft, the ring remains nonrotatable by the shaft but can travel axially following any axial movement of the shaft. The securing means comprises nonrotational stop means located between the casing and support ring and means located between the ring and shaft to permit the both to rotate relative to each other but keep them from moving axially. The nonrotational stop means is a combination of pins and holes, key ways and keys, or the like, and the means located between the ring and shaft to permit the both to rotate is either a pair of rolling bearings or a plurality of journal bearings plus a thrust sliding bearing.

REFERENCES:
patent: 3070378 (1962-12-01), Bojako et al.
patent: 3540742 (1970-11-01), Tracy
patent: 3921986 (1975-11-01), Geary et al.
patent: 3972536 (1976-08-01), Warner et al.

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