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POWER SHIFT

  • US 3,802,293 A
  • Filed: 08/28/1972
  • Issued: 04/09/1974
  • Est. Priority Date: 08/28/1972
  • Status: Expired due to Term
First Claim
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1. In a range shifting transmission including a first shiftable transmission unit having ratio means defining a series of steps and a second shiftable transmission unit serially connected to said first unit and having ratio means defining at least one step which is substantially equal to the spacing between said series of steps in said first unit, the combination comprising:

  • bypass means including releasable power transmitting means spanning said second unit and at least said series of steps of said first unit;

    means effecting power transmission by said power transmitting means when said second unit is in a neutral position and discontinuing such power transmission through said power transmitting means when said second unit is in a driving position;

    whereby a positive flow of power can be obtained through said transmission during the shifting sequence of said second unit.

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