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Class 244/68 - Elongated


Subclass of Class 244 - Aeronautics and astronautics
Definition: Arrangement of aircraft screw propellers of the long helix
No. of patents: 2
Last issue date: 09/22/1998


NumberTitleIssue Date
5810288High velocity propeller
A propeller for fluid propulsion (such as air or water) comprises a pair of substantially rigid blades. The blades are mounted for rotation about respective, separate, parallel rotation axes, with the axes being also substantially parallel to the longest ... 		09/22/1998
5810289High velocity propeller
A propeller for fluid propulsion comprises a pair of substantially rigid blades which rotate about their longest dimension in opposite directions, the blades each being oppositely helically twisted along the longest blade dimension and positioned together... 		09/22/1998
 
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