Arrangement for sealing an opening of a rotor housing

Details Arrangement for sealing an opening of a rotor housing Arrangement for sealing an opening of a rotor housing

2005-05-17

2005-05-17

Pickard, Alison (Department: 3676)

Seal for a joint or juncture

Seal between relatively movable parts

Close proximity seal

C277S412000, C277S422000, C384S488000, C384S901000

Reexamination Certificate

active

06893022

ABSTRACT:
An arrangement for sealing an opening of a rotor housing in which a vacuum prevails, through which opening a shaft of a spinning rotor, supported outside of the rotor housing, projects. The arrangement has free floating sealing element arranged towards the opening and forming at least two sealing gaps with the spinning rotor. A first sealing gap is located between the sealing element and the shaft, a second sealing gap is located between the sealing element and a collar of the spinning rotor which borders the shaft. The sealing element can form an additional third sealing element with the back wall of the spinning rotor.

REFERENCES:
patent: 3756673 (1973-09-01), Strub
patent: 4475736 (1984-10-01), Lesiecki
patent: 4598913 (1986-07-01), Kotzur
patent: 4723781 (1988-02-01), Turanskyj et al.
patent: 5299813 (1994-04-01), McKenna
patent: 5828148 (1998-10-01), Niggemann et al.
patent: 6095529 (2000-08-01), Stahlecker
patent: 197 32 096 (1999-01-01), None

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