Conveyors: power-driven – Conveyor or accessory therefor specialized to convey people – By stairway having steps forming an endless member
Reexamination Certificate
2011-06-07
2011-06-07
Hess, Douglas A (Department: 3651)
Conveyors: power-driven
Conveyor or accessory therefor specialized to convey people
By stairway having steps forming an endless member
C198S322000, C198S329000, C198S336000
Reexamination Certificate
active
07954619
ABSTRACT:
A handrail drive apparatus is provided comprising a first drive wheel assembly configured to drive a handrail and comprising a planetary gear train arranged to be driven by a first driving member. The handrail drive apparatus further comprises a second drive wheel assembly configured to drive the handrail, the second drive wheel assembly being coupled to the planetary gear train of the first handrail drive wheel assembly by a second driving member. The planetary gear train of the first handrail drive wheel assembly is configured to divide a torque imparted by the first driving member between the first and second drive wheel assemblies.
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Aulanko Esko
Collison Glen
Keemle Randall
Nurnberg Thomas
Flandro Ryan M.
Hess Douglas A
Kinberg Robert
Kone Corporation
Venable LLP
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