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:
Oct. 20, 1981
Filed:
Apr. 24, 1979
Cyuichi Saito, Katsuta, JP;
Katsuya Teranishi, Katsuta, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A passenger conveyor has a plurality of steps each including a treadboard provided with a number of cleats and grooves defined therebetween, the cleats being adapted to mesh with teeth of a comb-like plate at each terminal of the conveyor, and a frame to which the treadboard is secured; handrails adapted to run in synchronism with the travel of the steps; handrail frames disposed beneath the handrails; and balustrade panels. The treadboard is formed of a corrugated stainless steel sheet and is reinforced by at least one reinforcement member attached to the underside of the treadboard. The handrail frame is formed by first and second members both made of stainless steel sheets and having U-shaped cross-sections. The first and second members are welded together in back-to-back relationship so that the open side of the first member is directed toward the handrail while the open side of the second member is directed toward the balustrade panel.