Resources Contact Us Home
Speed reduction gear having axial and transverse components which are in equilibrium

Image Number 2 for United States Patent #4643039.

The two endless screws (202, 203) and the four gear wheels (207, 209-307, 309) which mesh with the endless screws and with each other in pairs, have inclined teeth in opposite directions at an angle a, while the secondary gear wheels (210, 310) fixed in rotation with two respective ones of the gear wheels (209, 309) have teeth inclined at an angle b such that tan a/tan b=D1/D2, where D1 is the pitch diameter of the gear wheels and D2 is the pitch diameter of the secondary gear wheels. The secondary gear wheels (210, 310) mesh with tertiary gear wheels (213, 313) which are fixed on an intermediate shaft (315) which bears a gear wheel having straight teeth and forming part of an outlet reduction stage.

  Recently Added Patents
Playback device for stereoscopic viewing, integrated circuit, and program
Frame timing synchronization in a geostationary satellite system
Handover signaling in wireless networks
Spalling utilizing stressor layer portions
Variable month cross-platform photo calendar builder
Method and device for the detection of defects or correction of defects in machines
Method and system for scaling usage of a social based application on an online social network
  Randomly Featured Patents
Dust filter device
Combined lamp and radio
Overpressure protection for an aircraft fuel tank system
Micromechanical resonator of a vibration gyrometer
Semiconductor device
Piezoelectric transducer for incorporation into a module
Multi-layer coatings and related methods
Data compression using bit change statistics
Planographic printing plate precursor and planographic printing method