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
Analysis of methylation using nucleic acid arrays
Maintenance guidance display device, maintenance guidance display method, and maintenance guidance display program
Resistor-2 resistor (R-2R) digital-to-analog converter with resistor network reversal
Image generation device with optimized dose control
Discharge lamp comprising coated electrode
Placental tissue grafts
Cantilevered probe detector with piezoelectric element
  Randomly Featured Patents
Locking device
Spiral gumball machine
2'-C-methyl nucleoside derivatives
Synthetic olivine in the production of iron ore sinter
Enzymes for starch processing
Method of direct RF digitization for multiple GNSS system bands and receiver using the same
Camera bag
Zoom lens
Systems and methods for ablating body tissue
Moving walk