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Spring motor

  • US 5,909,784 A
  • Filed: 11/10/1997
  • Issued: 06/08/1999
  • Est. Priority Date: 11/10/1997
  • Status: Expired due to Fees
First Claim
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1. A spring motor, comprising:

  • a frame;

    a first gear having peripheral teeth, said first gear rotatably supported by a first shaft;

    a second gear having peripheral teeth, said second gear rotatably supported by a second shaft, said first and second shafts being mounted to said frame;

    a first coil spring positioned about said first shaft and attached to said first gear and said frame;

    a second coil spring positioned about said second shaft and attached to said second gear and said frame;

    said peripheral teeth of said first gear are connected to said peripheral teeth of said second gear so that rotation of said first gear causes rotation of said second gear;

    said first and second coil springs being opposingly wound so that potential energy stored in said first coil spring is mechanically transferred to said second coil spring through rotation of said first and second gears, said transfer occurring in an oscillatory manner;

    a chain attached to said peripheral teeth of said gears so that said chain is linearly displaced as said gears oscillate; and

    means for transforming said linear displacement of said chain to rotational displacement of said first gear.

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