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:
Nov. 05, 1991
Filed:
Jul. 11, 1990
Dat Nguyen, New Britain, CT (US);
Frank Sansevero, West Hartford, CT (US);
Gerald E Johnson, Farmington, CT (US);
James A Rivera, Bristol, CT (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
The handrail drive has opposed rollers which are movable toward and away from each other due to their eccentric mountings. Two sets of such opposed rollers are used to drive the handrail. Each set of rollers is equipped with its own drive chain to increase the efficiency of each set of drive rollers with ultra high loads. The drive is particularly suited for moving high load escalator and moving walkway handrails.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile