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
System for determining movement properties of a guided vehicle
Method of adenoviral vector synthesis
Adding co-users to user definable co-user lists
Toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, image forming method, and image forming apparatus
Navigation system and navigation apparatus
Pattern forming method using developer containing organic solvent and rinsing solution for use in the pattern forming method
System and method for solving connection violations
  Randomly Featured Patents
Wavelength stabilized light source
Method of disposal of articles by flushing
Wall mounted microwave oven and control method therefor
Sense amplifier with isolation to bit lines during sensing
Game using combined coin board and seal card creating an action board
Method of dyeing an optical article
Method and apparatus for hole coldworking
Broadband optical via
Process for controlled gelation of polymeric solution
Portable seating device