Immersible dynamoelectric device

Claim 1

A DYNAMOELECTRIC DEVICE CAPABLE OF OPERATION WHILE IMMERSED IN AN AMBIENT FLUID, SAID DEVICE COMPRISING: A HOLLOW CASING ELEMENT HAVING AT LEAST ONE APERTURE THEREIN FOR ADMITTING AMBIENT FLUID INTO AND OUT OF SAID CASING: A THRUST BEARING MEANS MOUNTED WITHIN SAID CASING ADJACENT ONE END THEREOF; A STATOR ELEMENT AFFIXED TO SAID CASING ELEMENT AND HAVING A SMOOTH CYLINDRICAL BORE EXTENDING THERETHROUGH; A CYCLINDRICAL ROTOR ELEMENT HAVING A SMOOTH OUTER SURFACE LOCATED WITHIN SAID STATOR CYLINDRICAL BORE AND HAVING A SMALLER DIAMETER THAN SAID STATOR CYLINDRICAL BORE AND THUS DEFINING A SPACED REGION BETWEEN SAID STATOR AND ROTOR; SAID ROTOR ELEMENT ALSO HAVING A CYLINDRICAL BORE A THRUST RUNNER AFFIXED AT ONE END TO THE THRUST BEARING END OF THE ROTOR AND ROTATABLE THEREWITH, SAID THRUST RUNNER BEING PROVIDED AT ITS OTHER END WITH A THRUST SHOE MEANS IN SPACED COOPERATIVE RELATION WITH SAID THRUST BEARING MEANS AND HAVING AN OPENING COAXIAL WITH SAID CYLINDRICAL BORE OF SAID ROTOR; AND POWER SUPPLY MEANS FOR PRODUCING A MAGNETIC FIELD IN SAID STATOR ELEMENT WHICH IN TURN CAUSES ROTATION OF SAID ROTOR ELEMENT AND ITS AFFIXED THRUST RUNNER ABOUT AN AXIS OF ROTATION; SAID ROTATION CREATING A HYDRODYNAMIC FLUID FILM IN THE SPACED REGION BETWEEN SAID STATOR AND ROTOR AND A HYDRODYNAMIC FILM IN THE SPACED REGION BETWEEN SAID THRUST BEARING MEANS AND THRUST SHOE MEANS, SAID FILMS BEING COMPRISED EXCLUSIVELY OF AMBIENT FLUID; SAID HYDRODYNAMIC FILM BETWEEN SAID STATOR AND ROTOR PROVIDING THE TOTAL SUPPORT FOR SAID ROTOR ELEMENT RADIALLY OF SAID AXIS OF ROTATION AND SAID THRUST BEARING HYDRODYNAMIC FILM PROVIDING THE TOTAL SUPPORT FOR SAID ROTOR ELEMENT AXIALLY OF SAID AXIS OF ROTATION.