Patent ID: 8272917

Claim:
A propeller mechanism to fly an object in a specified direction, having a motor for rotating a drive shaft, comprising: a center shaft for connecting to the drive shaft, first and second propeller blades extending away from the center shaft; a control mechanism defined to include a first linkage and a second linkage; the first propeller blade having an opened region, the opened region defined to include an opened shaft portion to entirely surround the center shaft and defined to include an opened slot portion that extends away from the opened shaft portion to an internal terminus slot end within the first propeller blade towards a first propeller blade tip; the first linkage having a pair of first linkage ends, one first linkage ends being positioned within the opened shaft portion and connected to the center shaft and the other first linkage end being connected to the internal terminus slot end such that the first linkage is positioned in the opened region and connects the center shaft to the first propeller blade; and the second linkage having a substantially “L” shape design and includes a first end connected to the center shaft and a second end connected to an edge defined along a central region on the first propeller blade, whereby a change in a driving torque of the drive shaft causes the first linkage and the second linkage to work in concert to change the pitch and height of both the first and second propeller blades while substantially unchanging a tip path plane of the first and second propeller blades.