Radial shaft sealing ring

Details Radial shaft sealing ring Radial shaft sealing ring

1993-02-19

1994-09-20

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 14V, 277152, F16J 1540

Patent

active

053483138

ABSTRACT:
The invention relates to a shaft seal for sealing a shaft pass-through (3) of vacuum apparatus, which accommodates a shaft (2), having at least one annular seal (4) which is disposed in a housing part and with which a barrier liquid (5) is associated, while the sealing part (6) of the annular seal facing the shaft (2) forms with the shaft an annular chamber (8) in which the barrier liquid (5) is provided, in order in this manner to bind particles formed by attrition.

REFERENCES:
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patent: 3510177 (1970-05-01), Shimula
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patent: 3912284 (1975-10-01), Gosling et al.
patent: 4171818 (1979-10-01), Moskowitz et al.
patent: 4413829 (1983-11-01), Pietsch
patent: 5053661 (1991-10-01), Kitamura et al.
patent: 5165699 (1992-11-01), Shrontz et al.
Muller, H. K.: Abdichtung bewegter Maschinenteile Medienverlag, 1990, Seiten 29-45.
Ferrofluidics Corporation brochure "Solving Vacuum Feedthrough Problems with Ferrofluidic Seals".

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