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US 5,350,049 AGranted
Wear resistant safety coating for people moving device treadplates
AssigneeOtis Elevator Company
InventorsHermann W. Ahls, Michael Kruse, Peter Borchers
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Abstract
A treadplate for a people moving device is provided having a tread surface with a plurality of ribs extending out from the tread surface, and a wear resistant polymeric coating, having a color, bonded to the treadplate. The polymeric coating being made of a thermal setting plasticized polyvinylchloride plastic.
Claims9
A treadplate for conveying passengers in a passenger conveying device, comprising:
- a tread surface, having a body defined by a width and a length, wherein said length extends in the direction of travel of said treadplate;
- and
- a wear resistant coating, bonded to said tread surface, said coating comprising a thermal setting plasticized polyvinylchloride plastic.
A passenger conveying device, comprising:
- a plurality of treadplate for conveying passengers within said passenger conveying device, wherein each said treadplate comprises:
- a tread surface, having a body defined by a width and a length, wherein said length extends in the direction of travel of said treadplate;
- and
- a wear resistant coating, bonded to said tread surface, said coating comprising a thermal setting plasticized polyvinylchloride plastic.
1 more element
An escalator, comprising:
- a plurality of steps for conveying passengers, wherein each said step comprises:
- a tread surface, having a body defined by a width and a length, wherein said length extends in the direction of travel of said step;
- and
- a wear resistant coating, bonded to said tread surface, said coating comprising a thermal setting plasticized polyvinylchloride plastic.
1 more element
Dependencies are inferred from the claim text.