US PATENT SUBCLASS 74 / 650
.~ Nonplanetary gearing differential type (e.g., gearless differentials)


Current as of: June, 1999
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74 /   HD   MACHINE ELEMENT OR MECHANISM

640  DF  GEARING {31}
650.~ Nonplanetary gearing differential type (e.g., gearless differentials)


DEFINITION

Classification: 74/650

(under subclass 640) Gearing, not of the planetary type, wherein a differential action is obtained through some mechanisms other than a planetary gearing, such as e.g., overrunning clutches acting between a driving member and a plurality of driven members, a fluid drive involving plural power paths combined with other gearing, etc. Such structures are commonly designated "gearless" differentials.

SEE OR SEARCH CLASS

60, Power Plants,

485, for rotary type hydraulic differentials.

192, Clutches and Power-Stop Control,

41+, for one way clutches, per se, and see especially subclass 50 for plural clutches associated with parallel vehicle wheels permitting either wheel to overrun.

475, Planetary Gear Transmission Systems or Components, 220+, for planetary gear differentials.