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
Electronic system and method for compensating the dimensional accuracy of a 4-axis CNC machining system using global and local offsets
Contactless electrical connector for an induction sensor, and sensor including such a connector
Hydrogenolysis of ethyl acetate in alcohol separation processes
Data portal for concurrent assessment
Maize hybrid X08B748
Filler containing composition and process for production and use thereof
Method for driving bistable display device
  Randomly Featured Patents
Speech recognition system, method and program that generates a recognition result in parallel with a distance value
Porous polymeric membrane toughened composites
Microprocessor controlled thermoelectric cooler and laser power controller
Device for connecting to a liquid source
Leak detection in a closed vapor handling system using pressure, temperature and time
Personal robot
System and method for managing base stations in a wireless system
Mobile telecommunication system base station, mobile terminal
Card stripper for removing cards from card carriers
Apparatus and method for the destruction of waste