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US 6,148,683 AGranted
Worm/worm gear transmission
OwnerYakov Fleytmaninventor
Life of this patent
Estimating the term…
Abstract
A worm/worm gear transmission, particularly for use in a helicopter, and which includes an enveloping-type worm gear (3) having less than 24 teeth which are generated by an enveloping thread (1). The angle of one revolution of the thread has more than 15 degree. Different profiles of the worm gear are generated by a modified worm thread (9).
Claims18
A worm/worm gear transmission, comprising:
- an enveloping type worm gear with less than twenty-four teeth each having a tooth surface generated by a profile of an enveloping thread of a worm;
- and
- an enveloping worm having at least one screw thread that is engaged by at least one tooth of said worm gear.
Dependencies are inferred from the claim text.