Conveyors: power-driven – Conveyor or accessory therefor specialized to convey people – Moving hand-support structure
Reexamination Certificate
1998-07-16
2002-05-07
Valenza, Joseph E. (Department: 3651)
Conveyors: power-driven
Conveyor or accessory therefor specialized to convey people
Moving hand-support structure
C198S494000
Reexamination Certificate
active
06382389
ABSTRACT:
TECHNICAL FIELD
This invention relates to an outdoor escalator handrail guide containing a heating cable to keep the handrail from freezing to the handrail guide in extreme cold outdoor conditions.
BACKGROUND ART
During the wintertime, it is necessary to operate an outdoor escalator continuously. If it were switched off, the handrail would freeze to the handrail guide, and if such occurs, the escalator should not be started again, because parts of the handrail guide can be disturbed or damaged. The handrail can also become brittle or stiff, and may break if the system is restarted.
DISCLOSURE OF THE INVENTION
Objects of the invention include allowing an outdoor escalator to be turned off at night or when needed.
According to the present invention, a heating cable is disposed within the handrail guide of an outdoor escalator.
The heating cable allows for the escalator to be turned off at night, or when need arises, while keeping the handrail from freezing. The present invention provides a heating cable which is easy to install and maintain.
Other objects, features and advantages of the present invention will become more apparent in the light of the following detailed description of exemplary embodiments thereof, as illustrated in the accompanying drawing.
REFERENCES:
patent: 2839651 (1958-06-01), Erickson
patent: 4871056 (1989-10-01), Saito
patent: 4927003 (1990-05-01), Swinderman et al.
patent: 5014844 (1991-05-01), Anttonen
patent: 5798038 (1998-08-01), Huber
Kröger Dietmar
Mehlert Hans-Martin
Otis Elevator Company
Valenza Joseph E.
LandOfFree
Heated escalator handrail does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Heated escalator handrail, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heated escalator handrail will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2882368