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:
Jul. 09, 1991
Filed:
Sep. 14, 1990
Applicant:
Inventors:
James Rivera, Bristol, CT (US);
Lance Lavender, Enfield, CT (US);
Assignee:
Otis Elevator Company, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25G / ;
U.S. Cl.
CPC ...
403 16 ; 403259 ; 403261 ;
Abstract
Handrail drive wheels on escalators and moving walkways are subjected to high stresses due to the pressures which are generated by the drive wheels in order to move the handrails. The operational stresses on the drive wheels require that they be securely mounted on their drive shafts. This mount assembly provides secure wheel-shaft coupling, while enabling the drive wheel to be easily removed from the drive shaft for servicing without the need to use any specialized tools. The wheels are provided with internal jack screws that can be manipulated with an Allen wrench to dislodge the wheel from the drive shaft.