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US 6,645,020 B1Granted
Submarine countermeasure propeller protector
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorWilliam P. Barker
Life of this patent
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AssigneeThe United States of America as represented by the Secretary of the Navy
InventorWilliam P. Barker
Estimating the term…
A propeller protector for a countermeasure vehicle having a propeller shaft, a propeller fixed to the shaft, radial fins fixed on the vehicle and extending outwardly from the shaft, and a shield fixed to the fins and surrounding the propeller. The propeller protector includes a sleeve having an end wall at a first end thereof, and an open second end engaged with the vehicle, the first end and side walls of the sleeve having perforations therein. The sleeve first end is provided with a central opening. A nut is fixed to the sleeve end wall, threadedly mounted on the shaft, and disposed around the central opening. Stop structure on the sleeve and the vehicle prevents rotation of the sleeve relative to the vehicle. Rotation of the propeller shaft unscrews the shaft from the nut, permitting the nut and the sleeve to move axially to disengage from the vehicle.
A submarine countermeasure vehicle propeller protector comprising:
A submarine countermeasure propeller protector for a countermeasure vehicle having on an after portion thereof a propeller shaft, a propeller fixed to the shaft, radial fins fixed on an after surface of the vehicle and extending outwardly from the shaft, and a shield fixed to outer edges of the fins and surrounding the propeller, the countermeasure propeller protector comprising:
Dependencies are inferred from the claim text.