Binary track safety traverse system reconfigurable to provide safe trajectories over a wide range of inclinations

  • US 9,045,146 B2
  • Filed: 08/13/2013
  • Issued: 06/02/2015
  • Est. Priority Date: 10/21/2003
  • Status: Active Grant
First Claim
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1. A gravity binary rail security traverse system, which comprises:

  • (a) an upper flexible rail having a pair of ends, each end affixed to a first upper base and to an upper second base, there being an inclination therebetween;

    (b) a lower flexible rail parallel to said upper flexible rail and having a pair of ends, each end affixed to a first lower base and to a second lower base, there being an inclination therebetween;

    (c) an upper pulley carried by said upper flexible rail;

    (d) an lower pulley carried by said lower flexible rail;

    (e) a vehicle unit affixed to said pulley and movable by gravity between said bases; and

    (f) said upper and lower pulleys being tethered together.

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