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.:

US 6675949 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 13, 2004

Filed:

May. 14, 2002
Applicant:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65G 2/112 ;
U.S. Cl.
CPC ...
B65G 2/112 ;
Abstract

An accelerated walkway having a moving surface made up of sets of treadboards of variable length which are mounted between lateral traction chains. A drive mechanism is related with the lateral traction chains. Each set of treadboards has a front treadboard and a rear treadboard that are grooved and mutually articulated along an axis perpendicular to the direction of movement. The rear treadboard of each set of treadboards is mounted on the lateral traction chains and on lateral guidance rails. The front treadboard of each set of treadboards rests on and is displaceable over the rear treadboard of a next set of treadboards in the direction of movement by guide elements. Each of the lateral traction chains includes elbowed links and straight links consecutively articulated to each other through their extremities and run between lateral guides that cause the links to swivel between a folded position, in which the length of the chain is reduced, resulting in the partial overlaying of the treadboards, and a maximum extension position, resulting in the positioning of the treadboards in coplanar alignment.


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