Back to results
US 4,716,997 AGranted
Conductive idler sheave
AssigneeOtis Elevator Company
InventorWilliam H. Gibson
Life of this patent
Estimating the term…
Abstract
Plastic material is molded in the form of a sheave (20) about a wire steel brush (10), and interspersed between the bristles (14) thereof. A conductive path is provided to a cable (26) against which the sheave is urged via the bristles, which extend radially to the outer surface (22,24) of the sheave, and the hub (12) of the wire wheel brush.
Claims1
An idler sheave for contacting a moving cable, comprising:
- a wire wheel brush having metal bristles emanating radially from a metal hub;
- and
- plastic material molded in the form of a sheave coaxially onto the wire wheel brush and interspersed between the bristles, wherein the bristles extend to the outer surface of the sheave;
- for applying a voltage to said moving cable;
- a metal hub comprising two radially extending spaced apart plates joined by an axial tubular section, said bristles contacting said tubular section and said plates being in contact with opposite radial surfaces of said sheave.
2 more elements
Dependencies are inferred from the claim text.