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:
Feb. 21, 2006
Filed:
May. 04, 2001
Jean-marc Sabatie, Nanterre, FR;
Jean-Marc Sabatie, Nanterre, FR;
Compagnie du Sol, Nanterre, FR;
Abstract
The invention relates to a self-propelled carriage suitable for traveling in a gallery of substantially cylindrical shape. The carriage comprises a chassis () made up of two wheel sets (); a skip (); and a horizontal longitudinal support axis () on which said skip is pivotally mounted. Each wheel set comprises two arms () each having a first end pivotally mounted on one end of said axis; two rotary drive shafts () extend orthogonally to the support axis and are mounted at the opposite ends of the arms; drive means () for rotating said shafts; and two wheels (), each wheel comprising a hub () secured to a respective drive shaft, at least one circular disk secured to the hub, and having its periphery fitted with a plurality of rollers mounted to rotate freely about axes that are orthogonal to the axis of the wheel.