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Guidance system for guiding trackless vehicles along a path defined by an A-C energized conductor

  • US 3,993,156 A
  • Filed: 01/21/1976
  • Issued: 11/23/1976
  • Est. Priority Date: 02/19/1975
  • Status: Expired due to Term
First Claim
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1. Guidance system for guiding a trackless vehicle to operate on a surface (3) along a path defined by a guide conductor (4) located on or in the surface and having an a-c flowing therein and an a-c field thereabout, comprisingat least two horizontal coils (11, 12) located on the vehicle and having a common horizontal winding axis (18), positioned symmetrically with respect to a vertical longitudinal central plane of symmetry (1) between the wheels of the vehicle (2);

  • and two auxiliary coils (13,

         14) respectively located adjacent the horizontal coils (11,

         12) and symmetrical with respect to said longitudinal plane of symmetry, and having winding axes (15,

         16) located at least approximately in a common vertical plane transverse to said longitudinal plane, each coil including an acute angle (α

    ), open towards a conductor (4) with said longitudinal plane of symmetry (1).

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