One piece labyrinth seal

Details One piece labyrinth seal One piece labyrinth seal

1987-12-21

1989-05-23

Hornsby, Harvey C.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 24, F16J 1554

Patent

active

048323500

ABSTRACT:
A mechanical seal for rotating shafts consisting of a single ring member. The ring member has a series of radial grooves in the internal bore and a trough extending across the grooves to an end of the ring. The ring also has at least one external labyrinth groove extending radially and serving to inhibit contamination. A collection chamber having an expulsion port lies between the inner radial grooves and the external labyrinth groove.

REFERENCES:
patent: 4031716 (1977-06-01), Zabcik
patent: 4139203 (1979-02-01), Garrison
patent: 4257617 (1981-03-01), Hill
patent: 4373759 (1983-02-01), Greener
patent: 4406463 (1983-09-01), Fabrowsky
patent: 4531746 (1985-07-01), Amdall
patent: 4572517 (1986-02-01), Rockwood
patent: 4706968 (1987-11-01), Orlowski
patent: 4743034 (1988-05-01), Kakabaker

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