Yard-switching, Dispersed Patents (Class 246/182AA)
  • Patent number: 4168760
    Abstract: Routing decisions for vehicles following current-carrying guidewires and carrying destination addresses are made at intersections of a guidewire system without the need for storing large amounts of data at the intersections by making inequality and equality comparisons of destination addresses with one or a few numbers stored at each intersection and basing routing on the results of one or a combination of two such comparisons.
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: September 25, 1979
    Assignee: The Raymond Corporation
    Inventors: Ralph E. Paul, Jr., Leigh E. Sherman