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US 5,036,563 AGranted
Rotational elevator rope cleaning device
AssigneeOtis Elevator Company
InventorMichael V. Liebing
Life of this patent
Estimating the term…
Abstract
Elevator hoist ropes are continuously cleaned by a rotatable generally cylindrical wire brush assembly mounted in the machine room or hoistway along the path of travel of the hoist ropes. The axis of rotation of the wire brush is skewed to the direction of movement of the hoist ropes so as to cause the brush bristles to enter the rope strand valleys whereby grease and other materials are cleaned out of the inter-strand valleys on the rope.
Claims4
An assembly for cleaning elevator hoistway ropes in situ, said assembly comprising:
- a) a generally cylindrical wire brush array positioned adjacent to the hoistway ropes for engagement therewith as the ropes move up and down in the hoistway;
- and
- b) means mounting said brush array for rotation about an axis whereby said brush array will rotate about said axis in response to rope movement to constantly change the portions of said brush array which contact the ropes.
Dependencies are inferred from the claim text.