Magnetically controlled obturator

Details Magnetically controlled obturator Magnetically controlled obturator

1974-10-15

1976-01-13

Rothberg, Samuel B.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

F16J 900

Patent

active

039319768

ABSTRACT:
An obturator for the rotor of a machine such as a compressor for special or oxic fluids consists of an annular seal clamped in the active position between stationary knife-edge elements provided on the rotor and movable knife-edge elements carried by an annular supporting member which is capable of moving along the axis of the machine under the action of magnetic means between an inactive position at a distance from the rotor and an active position in which the supporting member is coupled with the rotor as a result of magnetic attraction forces. The movable knife-edge elements are joined to the movable supporting member by resilient means whereby an obturation force of lower value than the magnetic attraction force is exerted in the direction of the stationary knife-edge elements.

REFERENCES:
patent: 3025070 (1962-03-01), Copes
patent: 3137237 (1964-06-01), Zagar et al.
patent: 3283865 (1966-11-01), Mason
patent: 08001969 (1960-08-01), Whittle

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