The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 1976
Filed:
Dec. 05, 1974
Robert Gabillard, Lille, FR;
Agence Nationale de Valorisation de la Recherche (ANVAR), Courbevoie, FR;
Abstract
A method and device for facilitating the movement of a number of moving bodies such as trains travelling behind each other in a closed circuit with all the necessary automatic functions such as safety precautions against collision and control of traffic, is arranged by providing an ideal circulation of imaginary moving bodies corresponding to the actual bodies and progressing regularly according to a pre-established programme, each actual moving body being constrained to remain, within limits behind its corresponding imaginary moving body taking into account possible braking requirements, and, in front of the imaginary moving body controlling the next actual moving body. Means are provided for stopping the imaginary moving bodies and consequently the actual moving bodies in the case of mishaps, all the functions being effected with simple passive reference marks located along the line and spaced apart in such a way that the time taken by imaginary moving bodies to cover the distance separating two successive reference marks is always a substantially constant time.