Flir Systems, Incorporated

Ronald J Rosi

Michael R Hughes

Thomas M Sommer

A rotatable payload support turret for operation in a potentially hazardous environment includes a fixed element attached to a vehicle or fixed structure and a rotatable element, supported for rotation with respect to the fixed element. The turret includes a camera payload having a pointing direction configured to be upwardly pointing. An annular clearance gap formed between the fixed element and the rotatable element is sealed by a conventional gas tight magnetic fluid seal element. A wiper seal is also provided in the clearance gap between the location of the magnetic fluid and the external environment to prevent breakdown of the magnetic fluid by elements of the potentially hazardous environment. The clearance gap may also form a labyrinth seal having up to three legs that are oriented to oppose a gravitational force direction. In addition, the fixed element may include a fluid repelling feature for repelling streams of incoming fluids thereby deflecting elements of the potentially hazardous environment away from an outer opening of the clearance gap.

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Saugus, MA, United States of America

Ronald J Rosi