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Multi-propeller drive system

  • US 5,413,512 A
  • Filed: 07/05/1994
  • Issued: 05/09/1995
  • Est. Priority Date: 07/05/1994
  • Status: Expired due to Fees
First Claim
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1. A drive system comprising:

  • a differential means, having an input drive shaft and a plurality of output drive shafts, for dividing rotational motion from said input drive shaft between said plurality of output drive shafts wherein one output drive shaft may rotate at a different rate than the other output drive shafts;

    a plurality of shaft coupling means, each shaft coupling means keyed to a corresponding one of said output drive shafts of said differential means, for transferring rotational motion from said output drive shafts;

    a plurality of propulsion drive shafts, each propulsion drive shaft drivenly coupled to a corresponding one of said shaft coupling means, for rotating therewith; and

    at least one brake mechanism disposed between said output drive shafts of said differential means and said propulsion drive shafts, said brake mechanism being selectively engageable for changing the rotational speed of one propulsion drive shaft with respect to the other propulsion drive shafts.

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