REDUNDANT SEAL APPARATUS AND METHOD

An apparatus includes a rotatable shaft having a shaft surface and a first seal disposed in a sealing engagement with the shaft surface. At least a second seal is disposed in a first position relative to the rotatable shaft where the second seal is not in sealing engagement with the shaft surface an...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DEUTSCH, ERIC J, MACKLIN, MICHAEL G, KUTTEL, BEAT
Format: Patent
Sprache:eng ; fre
Schlagworte:
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Beschreibung
Zusammenfassung:An apparatus includes a rotatable shaft having a shaft surface and a first seal disposed in a sealing engagement with the shaft surface. At least a second seal is disposed in a first position relative to the rotatable shaft where the second seal is not in sealing engagement with the shaft surface and is movable to a second position relative to the rotatable shaft where the second seal is in sealing engagement with the shaft surface.