Passenger conveyor handrail sliding layer treatment
AssigneeOtis Elevator Company
InventorsChangsheng Guo, John M. Milton-Benoit, John P. Wesson
Life of this patent
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Abstract
A passenger conveyor handrail (30) includes a sliding fabric layer (36) having a low-friction coating (40) on at least one side (38) of the sliding fabric layer (36). One example includes the low-friction coating (40) on selected portions of the one side (38) of the sliding fabric layer (36). Another example includes a coating on both sides (38, 39) of the sliding fabric layer (36).
Claims19
An article useful as at least a portion of a passenger conveyor handrail, comprising:
- a sliding fabric layer having at least a portion of one side coated with a low friction coating wherein the low friction coating comprises at least one of tetrafluoropolyethylene, a solid flouropolymer, a low vapor pressure fluid flouropolymer, a fatty acid, a fatty acid derivative, graphite or molybdenum disulphide.
An article useful as at least a portion of a passenger conveyor handrail, comprising:
- a sliding fabric layer having at least a portion of one side coated with a low friction coating wherein the low friction coating is flexible and includes a firm outer skin.
An article useful as at least a portion of a passenger conveyor handrail, comprising:
- a sliding fabric layer having at least a portion of one side coated with a low friction coating wherein the low friction coating comprises at least one of an epoxy, a fluoroepoxy, a polyester, a polyamide, a polyurethane or a silicone.
An article useful as at least a portion of a passenger conveyor handrail, comprising:
- a sliding fabric layer having at least a portion of one side coated with a low friction coating wherein the low friction coating comprises laterally spaced coated portions on the one side and wherein the one side comprises a central, uncoated section between the laterally spaced coated portions.
A method of making at least a portion of a passenger conveyor handrail, comprising:
- applying a low friction coating to at least a portion of one side of a sliding fabric layer by at least one of brushing, spraying or rolling on the low friction coating.
A method of making at least a portion of a passenger conveyor handrail, comprising:
- applying a low friction coating to at least a portion of one side of a sliding fabric layer comprising establishing at least two laterally spaced portions of the low friction coating on the one side and leaving a central section of the one side uncoated.
A method of making at least a portion of a passenger conveyor handrail, comprising:
- applying a low friction coating to at least a portion of one side of a sliding fabric layer;
- applying a coating to a second, oppositely facing side of the sliding fabric layer;
- and
- applying different coatings to the one side and the second side, respectively.
A method of making at least a portion of a passenger conveyor handrail, comprising:
- applying a low friction coating to at least a portion of one side of a sliding fabric layer by extruding the low friction coating onto the one side of the sliding fabric layer.
Dependencies are inferred from the claim text.