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Modular resistance force system

  • US 9,339,678 B2
  • Filed: 01/17/2014
  • Issued: 05/17/2016
  • Est. Priority Date: 01/17/2013
  • Status: Active Grant
First Claim
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1. A modular resistance force system for use in exercising products, the modular force resistance system comprising:

  • an axle configured to be rotatable around a rotational axis; and

    a plurality of resistance mechanisms, each of the plurality of resistance mechanisms comprising;

    a resistance element disposed about a portion of the axle;

    a resistance element housing configured to house the resistance element; and

    a resistance substance disposed between the resistance element and the resistance element housing, wherein the resistance element housing is selectively engaged to rotate with the axle, and a resistance between the resistance element and the resistance substance causes a force to be applied to the axle in a first rotational direction when the resistance element and the resistance element housing rotate relative to each other; and

    wherein the plurality of resistance mechanisms share the rotational axis, and the product of the force of each of the plurality of resistance mechanisms is equal in magnitude to a total force applied to the axle in the first rotational direction.

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